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Department of Mining Engineering

Rick Honaker, Ph.D.
Professor, Mining Engineering

Location
234D MMRB
Phone
859-257-1108
Email
rick.honaker@uky.edu

Research Description

The primary goal of the research and development activities in my extractive metallurgy research group is to develop, test and commercialize innovative technologies and methodologies to advance the abilities to recover, concentrate and purify critical elements and materials including energy-relevant elements needed for renewable energy manufacturing. The research utilizes first principle fundamentals as well as applied engineering knowledge to meet the research goals, which provides an excellent educational experience for both undergraduate and graduate students.

Research Interests

Advanced Physical Processing

Applied Surface Chemistry

Automation and Control

Coal Preparation

Fine Particle Processing

Mineral Processing

Education

Ph. D., Virginia Polytechnic Inst. & State Univ., Mining & Minerals Engineering, 1992

M.S., Virginia Polytechnic Inst. & State Univ., Mining & Minerals Engineering, 1988

B.S., Virginia Polytechnic Inst. & State Univ., Mining & Minerals Engineering, 1986

A.S., Southwest Virginia Community College, Engineering, 1984

Appointments

9/07 – 6/17: Chair, Mining Engineering Department, Lexington, Kentucky.

7/06 – Present: Professor, University of Kentucky, Lexington, Kentucky

1/00 – 6/06: Associate Professor, University of Kentucky, Lexington, Kentucky

4/97 – 12/99: Associate Professor, Southern Illinois University Carbondale, Illinois

8/92 – 4/97: Assistant Professor, Southern Illinois University Carbondale, Illinois

8/91 – 8/92: Instructor, Southern Illinois University Carbondale, Illinois

9/90 – 7/91: Research Associate, Virginia Tech Blacksburg, Virginia

Teaching

Teaching Interests and Specialties

Coal Preparation, Mineral Processing, Advanced Physical Processing, Fine Particle Processing, Automation and Control, Applied Surface Chemistry, General Mining Engineering

Courses Taught

Principles of Mining Engineering, Underground Mine Systems Design, Minerals and Coal Processing,  Mine Ventilation Systems Design, Operations Research and Computers in Mine Design, Mine Health & Safety, Physical Coal Processing, Fine Coal Beneficiation, Coal Processing Plant Design, Simulation of Mineral,rocessing Circuits, Advanced Mineral Processing, Professional Development of Mining Engineers, Mine Surveying, Advanced Froth Flotation, Mineral Processing Plant Design, Materials Handling System Design

Chairman on Graduate Committees

Twenty-two (22) M. S. Graduates:

  1. Manoj K. Mohanty, 1993, Thesis Topic: “Coal Maceral Separations using Froth Flotation,” Current Position: Tenured Associate Professor, Southern Illinois University.
  2. Augustina Kashagili, 1994, Thesis Topic, “A Feasibility Study of Using Froth Flotation for the Treatment of Gondwana Coals from Tanzania,” Current Position: Director of Minerals Beneficiation, Bureau of Mines and Minerals, Tanzania.
  3. Sauvik Ghosh, 1995, Thesis Topic: “Application of the Jameson Cell for Cleaning Eastern U.S. Coals,” Current Position: Accountant, Chicago-based firm.
  4. Xiaotong Zhou (1996), Thesis Topic: “Evaluation of the Altair Enhanced Gravity Concentrator,” Current Position: Software Engineer.
  5. Kanchan Mondal, 1997, Thesis Topic: “A Dynamic Population Balance Model for a Hindered Bed Classifier,” Current Position: Associate Professor, Mechanical Engineering, Southern Illinois University.
  6. Amit Patwardhan, 1998, Thesis Topic: “Optimization of Coal Processing Plants and Economics of Advanced Fine Particle Cleaning,” Current Position: Process Engineer, Rio Tinto.
  7. Nisheeth Singh, 1999, Thesis Topic: “An Evaluation of a Novel Dense Medium Enhanced Gravity Concentrator for Fine Particle Separations,” Current Position: Industrial Management Ph.D. candidate, Massachusetts Institute of Technology.
  8. Manish Jain, 2003, Thesis Topic: “Optimized Spiral Separation Performance as a Flotation Alternative,” Current Position: Project Engineer, Iron Ore Company of India, Ltd.
  9. Francis Boaten, 2006, Thesis Topic: “Improved Ultrafine Coal Classification Performance,” Current Position: Plant Superintendent, Patriot Coal.
  10. Mehmet Saracoglu, 2007, Thesis Topic: “Improved Mining Economics using Near-Face Pneumatic Separators,” Current Position: Ph.D. student, UK.
  11. Vishnuvardhan Reddy, 2007, Report Topic: “Demonstration of a Novel Dry Coarse Coal Process,” Current Position: Statistician, CIBA.
  12. Carlos Munoz Dias, 2007, Thesis Topic: “Performance Enhancement Methods for Coal Flotation,” Current Position: Mining Engineer, Cardno-MMA.
  13. Clement Bimpong, 2008, Thesis Topic: “Alternative Materials for Dense Medium Separations,” Current Position: Mine Engineer, Consol Energy.
  14. Akram, Mohammed Zaheer, 2008, Thesis Topic: “Magnetic Fly Ash Applications in Dense Medium Separators.” Current Position: Project Engineer, Newmont Mining.
  15. Duan, Zhaomin, 2012, Thesis Topic: “Stabilization Methods for Coal Processing Waste”, Current Position: Process Engineer, Peabody Energy.
  16.  Dube, Raghav, 2012 Thesis Topic: “Development of Collectors for Oxidized Coals”, Current Position: Process Engineer, Outotec.
  17. Rezaee, Mohammad, 2013, Thesis Topic: “Strategies to Minimize the Release of Toxic Metals from Coal Waste Impoundments,” Current Position: PhD Student, University of Kentucky.
  18. Hassan Amini, 2014, Thesis Topic: “Coal Processing Strategies for Utilization in Silicon Metal Production,” Current Position: PhD Student, West Virginia University.
  19. Majid Mahmoodabadi, 2014, Thesis Topic: “Korean Anthracite Coal Cleaning by Means of Dry and Wet Based Separators,” Current Position: PhD Student, Civil Engineering, University of Kentucky.
  20. Zhang, Yumo, 2015, Thesis Topic: “Pilot Scale Demonstration and Evaluation of Innovative Non-Deslimed Non-Classified Gravity-Fed HM Cyclone,” Current Position: Daniels Company.
  21. Sharma, Shivani, 2016, Thesis Topic: “Techno-Economic Potential of Enhanced Coal Recovery through Middlings Liberation and Re-Processing, “ Current Position: Process Engineer, Imerys.
  22. Addo, Douglas, 2019 (Advisor: Josh Werner; Co-Advisor: R. Honaker), Thesis Topic: “Operation and Process Control Development for a Pilot-Scale Leaching and Solvent Extraction Circuit Recovering Rare Earth Elements from Coal-Based Sources,” Current Position: Plant Engineer, Hanson, Cincinnati, Ohio.

Fourteen (14) Ph. D. Graduates:

  1. Manoj Mohanty, 1997, Dissertation Topic: “Development of Advanced Techniques for Evaluating Fine Coal Cleanability and Froth Flotation Techniques,” Current Position: Professor, Southern Illinois University.
  2. Ahmet Vedat Ozsever, 2005, Dissertation Topic: “Evaluation of the Selective Detachment Process in Froth Flotation,” Current Position: Assistant Coal Preparation Director, Trinity.
  3. Ghosh, Tathagota, 2013, Dissertation Topic: “Computational Fluid Dynamic Modeling of Dry, Density-Based Separators,” Current Position: Tenure-Track Assistant Professor, University of Alaska-Fairbanks.
  4. Mehmet Saracoglu, 2013, Dissertation Topic: “Novel Methods for Improved Flotation Recovery,” Current Position: Technical Advisor, Rethink, Washington D.C. consulting firm.
  5. Mohammad Rezaee, 2015, Dissertation Topic: “Strategies to Minimize the Release of Toxic Metals from Coal Waste Impoundments,” Post-Doctorate, Virginia Tech.
  6. Qingqing Huang, 2016, Dissertation Topic: “Rock Dust Surface Chemistry Modifications for Eliminating Cake Formation and Improving Dispersion in Coal Dust Explosion Mitigation Applications,” Current Position: Post-Doctorate, West Virginia University
  7. Wencai Zhang, 2017, Dissertation Title: Surface Chemistry Study of Monazite Flotation in Coal Refuse Systems, Current Position: Assistant Professor, Virginia Tech.
  8. Chen, Jinxiang, 2017, Dissertation Title: Fundamental Study of the Tribo-Electric Separation Process, Current Position: Project Engineer, Clean Carbon.
  9. Abraham Nj, 2018, Dissertation Title: “Development of Chemicals for the Prevention of Spontaneous Coal Combustion,” Current Position: Ph.D. Student, UK Mechanical Engineering.
  10. Yang, Xinbo, 2019, Dissertation Title: “Leaching Characteristics of Rare Earth Elements from Bituminous Coal-Based Sources,” Current Position: Assistant Professor, University of Utah; Previous Position: Assistant Research Professor, UK Mining Engineering.
  11. Chandra, Alind, 2019, Dissertation Title: “Thermodynamic Modeling and Equilibrium System Design of a Solvent Extraction Process for Dilute Rare Earth Solutions,” Current Position: Senior Process Engineer, MP Materials, Mountain Pass, California.
  12. Srivastava, Vaibhav Kumar, 2021 (co-advisor role). Dissertation Title: “Modeling of Rare Earth Solvent Extraction Process for Flowsheet Design and Optimization,” Current Position: Metallurgist, Freeport-McMoRan.
  13. Gupta, Tushar, 2021, Dissertation Title: “Oxidation Pretreatment for Enhanced Leachability of Rare Earth Elements from Bituminous Coal Sources,” Current Position: Senior Process Engineer, MP Materials, Mountain Pass California; Previous Position: Post-Doctorate, University of Columbia, New York.
  14. Nawab, Ahmad, 2023, Dissertation Title: “An Acid Baking Approach to Enhance Rare Earth Element Recovery from Bituminous Coal Sources,” Current Position: Rio Tinto, Research Engineer, Research, Development & Innovation US Borax, Inc. / RioTinto Borates & Lithium.
     

Current Graduate Advisees:

  1. Yucel Ozsoy, Ph.D. student, Topic: Enhanced Separation Performance for Fractionally Liberated Materials using the HydroFloatTM Process Technology; anticipated graduation date: December 2024, currently employed at Rio Tinto.
  2. Elseyh, Melih, M.S. Student, Topic: Rare earth element and critical material extraction from a construction sand resource; anticipated graduation: December 2024.
  3. Guney, Egemen, Ph.D. Student, Topic: Advancing Rare Earth Element Recovery from Coal Refuse Streams: An Ionic Liquid-Assisted Process Coupled with Molecular Dynamics Simulation- Supported Machine Learning for Novel Ionic Liquid Development; anticipated graduation: August 2026.
  4. Ratliff, Caleb, M.S. Student, Topic: Application of Advanced Flotation Technologies for the Concentration of Bastnaesite; anticipated graduation date: May 2026.

Research

Research Grants Received (Total: $40,984,964; PI Total: $35,503,549; Co-PI Total: $5,481,415)

  1. Honaker, R. Q. (PI) , “The Application of Microbubble Column Flotation for the Coal Maceral Concentration,” a section of the Coal Refining Project of Dr. K. Templemeyer funded through an Illinois State Challenge Grant, 199, total funding = $12,900.
  2. Honaker, R. Q. (PI), and Paul, B. C., “Development and Demonstration of Fugitive Dust Control Methods for Coal Combustion Residues Disposal,” Disposal and Utilization of Coal Combustion Residues Program, 1991, total funding = $25,000.
  3. Honaker, R. Q. (PI), “Fine Coal Preparation for Coal Combustion Testing,” Illinois Clean Coal Institute, 1992, total funding = $4,250.
  4. Honaker, R. Q. (PI), “De-ashing and De-sulfurization of Fine Coal Using Centrifugal Washers,” Illinois Mining and Minerals Resources Research Institute (IMMRI), 1992, total funding = $15,000.
  5. Honaker, R. Q. (PI), and Sevim, H., “Fugitive Dust Control for FBC Fly Ash Disposal,” Coal Combustion Residues Program, 1993, total funding = $12,905.
  6. Honaker, R. Q. (PI), and Paul, B. C., “A Comparison Study of Commercial Column Flotation Technologies for Cleaning Illinois Basin Fines,” Illinois Clean Coal Institute, 1993, total funding = $85,088.
  7. Paul, B. C. (PI), and Honaker, R. Q. (Co-PI), “The Production of Illinois Basin Compliance Coal Using Enhanced Gravity Separation,” Illinois Clean Coal Institute, 1993, total funding = $97,358.
  8. Honaker, R. Q. (PI), “A Feasibility Study on the Use of the Jameson Cell for Cleaning Illinois Basin Coal Fines,” MIM Holdings, Ltd., Australia, 1993, total funding =$22,125.
  9. Honaker, R. Q. (PI), “A Frother Evaluation Study,” Kerr-McGee Coal Corporation, Oklahoma City, Oklahoma, 1993, total funding = $1,080.
  10. Honaker, R. Q. (PI), “A Comparison of Coal Spiral Technologies,” Kerr-McGee Coal Corporation, Oklahoma City, Oklahoma, 1993, total funding =$2,000.
  11. Honaker, R. Q. (PI), “A Coal Spiral Circuitry Study,” Kerr-McGee Coal Corporation, Oklahoma City, Oklahoma, 1993, total funding =$3,080.
  12. Honaker, R. Q. (PI), and Reed, S., “A Fine Coal Circuitry Study Using Column Flotation and Gravity Separation,” Illinois Clean Coal Institute, 1994, total funding =$115,637.
  13. Honaker, R. Q. (PI), Paul, B. C., and Wang, D., “Advanced Physical Coal Cleaning to Comply with Potential Air Toxics Regulations,” Illinois Clean Coal Institute, 1994, total funding = $78,574.
  14. Honaker, R. Q. (PI), “De-watering of Fine Clean Coal Concentrates Produced from Advanced Coal Cleaning Technologies,” University of Missouri-Rolla, 1994, total funding =$4,000.
  15. Honaker, R. Q. (PI), “Fine Coal Cleaning Tests,” University of North Dakota, 1994, total funding =$1,144.
  16. Honaker, R. Q. (PI) and Wang, D., “Full-Scale Testing of the Falcon Concentrator,” Illinois Clean Coal Institute, 1994, total funding = $18,000.
  17. Honaker, R. Q. (PI), “Application of the Falcon Concentrator for Fluorspar-Barite Separations,” Ozark-Mahoning Company, 1995, total funding =$4,108.
  18. Honaker, R. Q. (PI) and Reed, S., “In-Plant Testing of a Novel Coal Cleaning Circuit Using Advanced Technologies,” Illinois Clean Coal Institute, 1995, total funding =$115,641.
  19. Honaker, R. Q. (PI) and Mohanty, M. K., “A Modified Release Analysis Procedure Using Advanced Froth Flotation Mechanisms,” Illinois Clean Coal Institute, 1995, total funding =$39,280.
  20. Honaker, R. Q. (PI), “Dewatering of Advanced Froth Flotation Concentrates Using the Coal-Logging Process,” joint project with University of Missouri-Rolla, Illinois Clean Coal Institute, 1995, total funding = $7,854.
  21. Honaker, R. Q. (PI), “Processing of a Rutile Ore Using the Falcon Concentrator,” DuPont Chemicals, Jackson Laboratory, Chambers Works, Deepwater, New Jersey, July, 1995, total funding = $2,500.
  22. Honaker, R. Q. (PI), “Application of the Jameson Cell for the Treatment of Phosphate Ore,” S. F. Phosphates Limited, Vernal, Utah, 1995, total funding = $8,141.
  23. Honaker, R. Q. (PI), Campbell, J. A. L., and Arnold, B. J., “A Holistic Approach to Fly Ash: By-Products Recovery,” Illinois Clean Coal Institute, 1996, total funding =$119,818.
  24. Honaker, R. Q. (PI), Sevim, H., and Mohanty, M. K., “Advanced Fine Coal Processing For Improved Mine Profitability,” Illinois Clean Coal Institute, 1996, total funding =$92,500.
  25. Honaker, R. Q. (PI), “Evaluation of the Campbell Jig for Fine Coal Cleaning,” Mineral Systems Recovery Inc., Pat Costen, President, 1996, total funding =$21,582.
  26. Honaker, R. Q. (PI), “Pre-Combustion Removal of Hazardous Air Pollutant Precursors,” Virginia Polytechnic Institute and State University and the U. S. Department of Energy, 1996, total funding = $9,788.
  27. Honaker, R. Q. (PI), Govindarajan, B., and Mohanty, M. K., “A Novel High Efficiency Enhanced Gravity Separation Using Dense Medium,” Illinois Clean Coal Inst., 1997, total funding = $112,000.
  28. Honaker, R. Q. (PI), “In-Plant Studies of the Altair Jig,” Mineral Systems Recovery Inc., Pat Costen, President, 1997, total funding =$25,000.
  29. Paul, B. C. (PI), Honaker, R. Q. (Co-PI), and Chugh, Y. P., “Integrated Power Generation at the Wabash Coal Mine,” Illinois Department of Commerce and Community Affairs, 1997, total funding =$20,000.
  30. Honaker, R. Q. (PI), “Application of the Jameson Cell Technologies for Cleaning Eastern U. S. Fine Coal,” M. I. M. Holdings Limited, Bribane, Queensland, Australia, 1998, total funding = $32,000.
  31. Sevim, H. (PI) and Honaker, R. Q. (Co-PI), 1998, “Improving Marketability of Illinois Coal through Strategic Mining, Advanced Cleaning, and Air Pollution Allowance,” SIUC Internal Research Program for Business, Education, and Social Sciences, May 1998, total funding =$12,000.
  32. Honaker, R. Q. (PI), “Development and Demonstration of an Enhanced Gravity Separator for Coal Cleaning,” Submitted to the Illinois Department of Commerce and Community Affairs/Illinois Clean Coal Institute, November 1998, total funding = $255,000.
  33. Honaker, R. Q. (PI), Chugh, Y. P., Parekh, B. K. and Lytle, J., “Development and Demonstration of Integrated Carbon Recovery Systems from Fine Coal Processing Waste,” U. S. Department of Energy, PERDA DE-RA26-98FT97098, December 1998, total funding =$560,000.
  34. Chugh, Y. P. (PI), Honaker, R. Q. (Co-PI) and Paul, B. C. (Co-PI), “Development and Demonstration of Integrated Coal Mining, Processing and By-products Management Systems for Enhanced Economics,” U. S. Department of Energy, Mining of the Future Program, August 1999, $240,000.
  35. Yingling, J. (PI), Honaker, R. Q. (Co-PI) and Jain, M., “Evaluation of the Raw Coal Storage and Preparation Plant Capacity at Peabody Energy’s Wells Complex Peabody Energy,” Peabody Energy, $6000, funding period May 15 – June 15, 2001.
  36. Honaker, R. Q. (PI), B. K. Parekh (co-PI), D. Taulbee (co-PI), and D. Tao (co-PI), “Premium Fuel Production from Mining and Timber Waste Using Advanced Separation and Pelletizing Technologies,” Kentucky Division of Energy/U.S. Department of Energy, three years, July 2002, sponsor funding = $505,537, total project cost = $670,513.
  37. Honaker, R. Q. and Tao, D., “Combining Enhanced Gravitation and Surface Forces for Improved Energy Recovery,” Kentucky Science and Engineering Foundation, Project Number KSEF-147-RDE-001, two years, July 2002, sponsor funding = $69,362, total project cost = $219,531.
  38. Tao, D. (PI) and R. Q. Honaker (co-PI), “Development of Advanced Simultaneous Fine Coal Dewatering and Reconstitution Process for Energy Recovery and Environmental Protection,” Kentucky Science and Engineering Foundation, Project Number KSEF-01-RDE-001, two years, July 2002, sponsor funding = $72,000, total project cost = $190,327.
  39. Honaker, R. Q. (PI) and Parekh, B. K. (co-PI), “Development of Novel Ultrafine Sizing Methods,” Center for Advanced Separation Technologies, U. S. Department of Energy, 2 year project, April 2003, sponsor funding = $146,531, total project cost = $206,215.
  40. Parekh, B. K. (PI) and Honaker, R. Q. (co-PI), “Improving Densification of Fine Coal Refuse to Eliminate Slurry Ponds,” Center for Advanced Separation Technologies, U. S. Department of Energy, 2 year project, April 2003, sponsor funding = $154,788.
  41. Tao, D. (PI), Honaker, R. Q. (co-PI) and Parekh, B.K. (co-PI), “Innovative Process for Enhanced Recovery of Phosphate, “Florida Institute of Phosphate Research, 2 year project, June 2003, sponsor funding = $168,111.
  42. Honaker, R. Q. (PI), “In-Plant Testing of High-Efficiency Hydraulic Separators,” Mining Industries of the Future Program, U. S. Department of Energy, 2 year project, July 2003, Joint Project with Virginia Tech, UK sponsor funding = $108,846, total cost = $136,840.
  43. Tao, D. (PI) and Honaker, R. Q. (co-PI) , “ Innovative Coal Beneficiation Process – Picobubble Enhanced Flotation for Efficient Recovery of Coarse and Ultrafine Particles with Less Reagent,” Kentucky Science and Engineering Foundation, two year project, June 2003, sponsor funding = $85,809.
  44. Tao, D. (PI), Honaker, R. Q. (co-PI) and Parekh, B. K. (co-PI), “Development of Advanced Surface Enhancement Technology for Decreasing Wear and Corrosion of Equipment Used for Mineral Processing,” Mining Industries of the Future, U. S. Department of Energy, 3 year project, July 2003, sponsor funding = $712,700, total project cost = $2,010,944.
  45. Tao, D. (PI), Parekh, B.K. (co-PI), and Honaker, R. Q. (co-PI), “Development and Pilot-Scale Demonstration of Deep ConeTM Paste Thickening Process for Phosphatic Clay Disposal,” Florida Institute of Phosphate Research, 18 month project, January 2004, sponsor funding = $261,448.
  46. Honaker, R. Q. (PI), “Evaluation of a Pneumatic Jig for Pre-Combustion Cleaning of Low Rank Coals,” Falkirk Mining Company, 1 year project, August 2004, sponsor funding = $40,000, total project cost = $72,805.
  47. Honaker, R. Q. (PI) and Parekh, B. K. (co-PI), “Evaluation of the Cerwat Dewatering Technology,” Kentucky Development Corporation, 4 months, September 2004, sponsor funding = $17,000.
  48. Honaker, R. Q., (PI), “Development of a Novel Dry Coal Cleaning Technology,” Mining Industries of the Future, U. S. Department of Energy, 24 month project, April 2005, sponsor funding = $568,506, total project cost = $944,961.
  49. Honaker, R. Q. (PI), “Alternative Materials for Dense Medium Separations,” Center for Advanced Separation Technologies/U. S. Department of Energies, 2 year project, September 2005 – August 2007, sponsor funding = $143,502.
  50. Honaker, R. Q. (PI) and Tao, D. (co-PI), “Enhanced Flotation Performance through Column Froth Enrichment,” Center for Advanced Separation Technologies/U. S. Department of Energy, 2 year project, September 2005 – August 2007, sponsor funding = $145,502.
  51. Tao, D. (PI) and Honaker, R. Q. (Co-PI), “Proof-of-Concept Testing of the Piccobubble Phosphate Flotation,” Florida Institute of Phosphate Research, September 2005 – August 2007, $460,000.
  52. Honaker, R. Q. (PI), “Demonstration of A Novel Dry Coarse Coal Process For Improved Mining Economics,” Kentucky Office of Energy Policy, July 1, 2006 – June 30, 2007. agency funding: $115,867, total funding: $198,867.
  53. Groppo, J. (PI) and Honaker, R. Q. (co-PI), “Economical Recovery of Fly Ash- Derived Magnetics and Evaluation for Coal Cleaning,” Kentucky Office of Energy Policy, July 1, 2006 – June 30, 2007, agency funding: $77,241.
  54. Honaker, R. Q, “Improved Energy Efficiency and Economic Recovery of Eastern Kentucky Coal Using a Novel Dry Clean Coal Technology.” Kentucky Office of Energy Policy, July 1, 2007 – June 30, 2008; agency funding: $99,548.
  55. Honaker, R. Q., “Dry Beneficiation of Thermal Coals in India, U.S. State Department, April 1, 2008 – March 31, 2010, funding: $100,000.
  56. Tao, D. (PI) and R. Q. Honaker (Co-PI), “Improving Coal Flotation Recovery Using Cavitation Concepts,” Center for Advanced Separation Technologies/U.S. Department of Energy, July 1, 2007 to June 30, 2009. agency funding: $137,467, 20% involvement.
  57. Tao, D. (PI) and R. Q. Honaker (Co-PI), “Development of Novel Rotary Triboelectrostatic Separator for Dry Cleaning of Pulverized Fine Coal at Power Plants,” Illinois Clean Coal Institute, September 1, 2008 – April 30, 2010, funding: $295,720.
  58. Honaker, R. Q., “Center for Advanced Separation Technologies (CAST),” U.S. Department of Energy, September 1, 2009 – September 31, (2011). Funding: $2,741,955.
  59. Bailey, S. (PI) and Honaker, R. Q., “Coal in Kentucky: A Documentary,” Coal Education Grant, Energy and Environment Cabinet, Department for Energy Development Independence, Kentucky, July 1, 2009 – June 30, 2010. Funding =$148,477.
  60. Wala, A. (PI) and Honaker, R. Q., “Advancing Critical Health & Safety Aspects Of Mine Ventilation Through Technical Development And Training,” National Institute of Occupational Health & Safety (NIOSH), September 1, 2009 – August 31, 2014, funding = $1,203,601.
  61. Tao, D. (PI) and Honaker, R., “Cavitation Picobubble Enhanced Flotation Process for More Efficient Fine Coal Recovery”, Illinois Clean Coal Institute (ICCI), January 1, 2010 – May 31, 2011. Total funding = $305,349; agency funding = $241,978.
  62. Honaker, R.Q. (PI), Taulbee, D. and Sha, N., “Development of Advanced Systems for Preprocessing and Characterizing Coal-Biomass Mixtures as Next-Generation Fuels and Feedstocks,” Virginia Tech/U.S. Department of Energy, January 1, 2011 – December 31, 2013. Total Funding: $505,626, agency funding: $400,000.
  63. Honaker, R. Q. (PI), “Cavitation Pretreatment of a Flotation Feedstock for Enhanced Coal Recovery” Center for Advanced Separation Technologies, U.S. Department of Energy, September 1, 2010 – August 31, 2011. Agency funding = $182,496.
  64. Honaker, R. Q. (PI), “Chemical Stabilization of Fine Coal Waste: Elimination of Slurry Impoundments” Center for Advanced Separation Technologies, U.S. Department of Energy, September 1, 2010 – August 31, 2011. Agency funding = $116,956.
  65. Honaker, R. Q. (PI), Saito, K. (Co-PI) and Abraham, S. (Co-PI), “Computational Fluid Dynamics (CFD) Analysis of an Air-Based Density Separator” U.S. Department of Energy, September 1, 2010 – August 31, 2011. Agency funding = $87,893.
  66. Taulbee, D. (PI), Patil, D. (Co-PI) and Honaker, R. Q. (Co-PI), “Dewatering of Fine Coal Pellets,” U.S. Department of Energy, September 1, 2010 – August 31, 2011. Agency funding = $150,003.
  67. Lusk, B (PI), Honaker, R, Perry, K, Novak, T “University of Kentucky Experimental Mine Feasibility Study” Kentucky Department for Energy Development and Independence, July 2012 – June 2014, Total funding: $350,000, 30% involvement.
  68. Honaker (PI) and Lusk, B. (Co-PI), Appalachian Research Initiative for Environmental Sciences: UK Mining Engineering Tasks, Year 2, July 1, 2012 – June 30, 2013, Total Funding: $134,680, 50% involvement.
  69. Honaker (PI) and Lusk, B. (Co-PI), Appalachian Research Initiative for Environmental Sciences: UK Mining Engineering Tasks, Year 1, July 1, 2011 – June 30, 2012, Total Funding: $135,307, 50% involvement.
  70. Lineberry, G.T. (PI) and Honaker, R. Q. (Co-PI), NIOSH/CDC, “Appalachian Education Research Center” Education Research Center, July 2012 – June 2014, funding: $231,955, 30% involvement.
  71. Parekh, B.K. (PI) and Honaker, R.Q. (Co-PI), “Dry cleaning of fine coal using a fluidized bed shaking table,” Korea Institute of Geoscience and Mineral Resources (KIGAM), March 2012 – March 2013, Total Funding: $44,000, funded, 20% Involvement.
  72. Honaker, R. Q. (PI), Silva, J. C. (Co-PI) and Sottile, J. (Co-PI), “Collaborative Modernization of a Natural Resources Engineering Program at Balkh University in Afghanistan,” U.S. Department of State, October 1, 2013 to September 30, 2016, funding = $749,964, 40% involvement.
  73. Honaker, R. Q. (PI), “Dry Coal Cleaning Using Optical Sorting and Triboelectric Separation,” Korea Institute of Geoscience and Mineral Resources, March 1, 2013 – April 30, 2014, funding =$44,475, 100% Involvement.
  74. Honaker, R. Q. (PI), “Pilot Scale Demonstration and Evaluation of Innovative Non-Deslimed Non-Classified Gravity-Fed HM Cyclone,” Illinois Clean Coal Institute, July 1, 2013 – December 31, 2014, funding = $124,966, 100% Involvement.
  75. Honaker, R. Q. (PI), “Dry Beneficiation of Coal by Triboelectrostatic Separation-Phase 2,” Southern Illinois University, April 1, 2014 – June 30, 2016, funding = $43,550, 100% Involvement.
  76. Honaker, R .Q. (PI), Hower, J. (Co-PI), Eble, C. (Co-PI) and Weisenfluh, J. (C o-PI), “Laboratory and Bench-Scale Testing for Rare Earth Elements,” Leonardo Technologies, Inc., July 8 – December 15, 2014, $596,699, 80% Involvement.
  77. Honaker, R .Q. (PI), Hower, J. (Co-PI), Eble, C. (Co-PI), Groppo, J. and Weisenfluh, J. “Resource Assessment for the Extraction of REE from Coal,” Leonardo Technologies, Inc., June 30 – October 15, 2014, $328,619, 50% Involvement.
  78. Honaker, R. Q. (PI), “Coal Cleaning using Dense Medium Cyclone and Spiral Performance,” Korea Institute of Geoscience and Mineral Resources, March 1, 2014 – June 30, 2015, funding =$48,708, 100% Involvement.
  79. Honaker, R.Q. (PI) and Groppo, J. (Co-PI), “Evaluation of Kentucky Coal Waste Slurries for Rare Earth Element and Valuable Mineral Recovery,” Kentucky Energy and Environment Cabinet, July 1, 2015 – June 30, 2016, funding = $75,000; 70% Involvement.
  80. Honaker (PI) and Lusk, B. (Co-PI), Appalachian Research Initiative for Environmental Sciences: UK Mining Engineering Tasks, Year 4, July 1, 2015 – July 31, 2016, Total Funding: $40,000, 100% involvement.
  81. Honaker, R.Q. (PI), Groppo, J., Yoon, R.H., Luttrell, G.H., Noble, A. and Herbst, J., Pilot-Scale Testing of an Integrated Circuit for the Extraction of Rare Earth Minerals and Elements from Coal and Coal Byproducts Using Advanced Separation Technologies, U.S. Department of Energy/National Energy Technology Laboratory, March 1, 2016 – August 31, 2017; Total Project Value = $1.30 million; Agency Share = $997,797; 100% involvement.
  82. Groppo, J. (PI), Honaker (Co-PI), R.Q., Hower (Co-PI), J. and Eble, C. (Co-PI), Identification and Characterization of Illinois Basin Coal and Coal-related Materials Containing High Rare Earth Element Concentrations, U.S. Department of Energy/National Energy Technology Laboratory, Project No. DE-FE0026443, Contract Performance Period: 10/1/2016 – 4/30/2018Total Project Value = $400,000; Agency Share = $400,000; 20% involvement.
  83. Honaker, R.Q. (PI), Groppo, J., Yoon, R.H., Luttrell, G.H., Noble, A. and Herbst, J., Phase 2: Pilot-Scale Testing of an Integrated Circuit for the Extraction of Rare Earth Minerals and Elements from Coal and Coal Byproducts Using Advanced Separation Technologies, U.S. Department of Energy/National Energy Technology Laboratory, Project No. DE-FE0027035, September 1, 2017 – March 31, 2020; Total Project Value = $7.50 million; Agency Share = $6,000,000; 100% involvement.
  84. Honaker, R.Q. and Werner, J., “Phase 1: Production of Salable Rare Earths Products from Coal and Coal Byproducts in the U.S Coal Industry,” Marshall Miller and Associates (U.S. DOE/NETL subaward), September 1, 2017 – February 28, 2019; Total Project Value = $368,500; Agency Share = $311,600; 50% involvement.
  85. Honaker, R.Q., Werner, J., and Zhang, W., “Recovery of Rare Earth Elements from Coal Byproducts: Characterization and Laboratory-Scale Separation Tests,” Virginia Tech (U.S. DOE/NETL subaward, Project No. DE-FE0029900), August 1, 2017 – January 31, 2019, Total Project Value = $421,052; Agency Share = $400,000; 50% involvement.
  86. Honaker, R.Q., and Zhang, W., “Low-temperature Plasma Treatment for Enhanced Recovery of Highly Valued Critical REEs from Coal,” U.S. Department of Energy/National Energy Technology Laboratory, Project No. DE-FE0031525, November 15, 2017 – May 15, 2019; Total Project Value = $404,969; Agency Share = $322,352; 100% involvement.
  87. Honaker, R.Q. (PI), Werner, J., Noble, A., Zhang, W. and Free, M., Demonstration of Scaled-Production of Rare Earth Oxides and Critical Materials from Coal-Based Sources using Innovative, Low Cost Process Technologies and Circuits, U.S. Department of Energy/National Energy Technology Laboratory, Project No. DE-FE0031827, October 1, 2019 – March 31, 2022; Total Project Value = $6.25 million; Agency Share = $5,000,000; 100% involvement.
  88. Werner, J. (PI) and Honaker, R.Q. (Co-PI), “A Unique Collaboration of Coal-based REEs and the U.S.’s Largest Rare Earth Producer,” MP Materials through the U.S. Department of Energy/National Energy Technology Laboratory, DOE Contract No. 89243320CFE000053, Project Total Cost = $3,000,000; UK project share = $550,000.
  89. Honaker, R.Q. (PI) and Werner, J., Multi-Sourced Collaboration for the Production and Refining of Rare Earth and Critical Metals, U.S. Department of Energy/National Energy Technology Laboratory, Project No. DE-FE0032119, December 1, 2021 – February 28, 2023; Total Project Value = $261,398 million; Agency Share = $199,989; 50% involvement.
  90. Honaker, R.Q., Werner, J., Groppo, J., Silva, J., Rodney, A., Weisenberger, M. and Hower, J., Illinois Basin Carbon Ore, Rare Earth, and Critical Minerals (IB-CORE-CM) Initiative, Illinois State Geological Survey, September 21, 2021 – September 20, 2023, Total Project Cost = $337,447; Agency Share = $269,552.
  91. Honaker, R.Q., Consortium to Assess Northern Appalachia Resource Yield (CANARY) of Core-CM for Advanced Materials, October 1, 2021 – September 30, 2023, Total Project Cost = $87,538; Agency Share = $69,982.
  92. Honaker, R.Q., SynBREE: Synthetic Biology for Biomining of Rare Earth Elements, Lawrence Livermore National Laboratory via U.S. Department of Defense DARPA, August 31, 2022 – August 31, 2025, Total Project Value = $774,622; Agency Share = $774,622; 100% involvement.
  93. Honaker, R. Q. (PI) and Groppo, J., Development of a Carbon-Negative Process for Comminution Energy Reduction and Energy-Relevant Mineral Extraction through Carbon Mineralization and Biological Carbon Fixation, U.S. Department of Energy/ARPA-E Project No. DE-AR0001713, February 1, 2023 – January 31, 2026; Total Project Value = $4,753,096; Agency Share = $3,500,000; 40% involvement.
  94. Honaker, R.Q., Werner, J., Groppo, J, and Yang, X., The Strategic Materials and Recovery Technologies (SMaRT) Center, Energy Research Prioritization Partnership, University of Kentucky, June 1, 2021 – May 31, 2023, Total Project Funding = $300,000, 50% involvement.
  95. Honaker, R.Q. and Ji., B, Advancing Rare Earth Element Recovery from Coal Refuse Streams: An Ionic Liquid-Assisted Process Coupled with Molecular Dynamics Simulation-Supported Machine Learning for Novel Ionic Liquid Development, U.S. Department of Energy, May 7, 2024 – May 6, 2026, Project Number DE-FE0032469, Total Project Funding = $499,811, Agency Share = $499,811.
  96. Honaker, R.Q., Groppo, J., Weisenberger, M. and Ji., B., Bipartisan Infrastructure Law - BIL – Development of a Strategic Materials Production System for Rare Earth Metals, Graphite and Other Critical Materials, U.S. Department of Energy, September 1, 2024 – August 31, 2027, Project Number DE-FE0032505, Total Project Cost = $6,390,593 Agency Share = $5,000,000.
  97. Honaker, R.Q., and Groppo, J., Illinois Rare Earth Novel Extraction and Supply (IRENES), University of Illinois/Illinois State Geologic Survey (through U.S. Department of Energy Funding Opportunity DE-FOA-0002854), September 2024 – December 2025, Total Project Cost = $485,000, Agency Share = $425,000.
  98. Honaker, R.Q., Develop of a process flowsheet that provides a technical and economical pathway to extracting, concentrating and purifying critical elements from the Cox regolith associated with the Hicks Dome geologic formation, University of Illinois/Illinois State Geologic Survey, October 1, 2024 – September 30, 2025, Total Project Cost $200,000, Agency Cost = $200,000.
     

Journal Publications

  1. Yoon, R.-H., Honaker, R. Q., and Luttrell, G. H., “Application of the Selective Hydrophobic Coagulation Process for Upgrading Carbonaceous Material,” J. Physicochemical Problems of Mineral Processing, October, Vol. 24, pp. 33 – 45, 1991.
  2. Honaker, R. Q., Paul, B. C., Wang, D., and Huang, M., “The Application of Centrifugal Washing for Fine Coal Cleaning,” Minerals & Metallurgical Processing, May, pp. 80 – 84, 1995.
  3. Honaker, R. Q., Mohanty, M. K., and Crelling, J. C., “Coal Maceral Separation Using Column Flotation,” Minerals Engineering, Vol. 9, No. 4, pp. 1 – 16, 1996. 
  4. Honaker, R. Q. and Mohanty, M. K., “Enhanced Column Flotation Performance for Fine Coal Cleaning,” Minerals Engineering, Vol. 9, No. 9, 1996.
  5. Honaker, R. Q., Wang, D., and Ho, K., “Application of the Falcon Concentrator for Fine Coal Cleaning,” Minerals Engineering, Vol. 9, No. 11, 1996. 
  6. Mohanty, M. K., Honaker, R. Q., Patwardhan, A., and Ho, K., “Coal Flotation Washability: An Evaluation of the Traditional Procedures” Coal Preparation, Vol. 19, No. 1 – 2, pp. 33 – 49, 1998.
  7. Mohanty, M. K., Honaker, R. Q., and Ho, K., “Coal Flotation Washability: Development of an Advanced Procedure,” Coal Preparation, Vol. 19, No. 1 – 2, pp. 51 – 67, 1998.
  8. Mohanty, M. K., Honaker, R. Q., Mondal, K., and Ho, K., 1998, “Trace Element Reductions In Fine Coal Using Advanced Physical Cleaning,” Coal Preparation, Vol. 19, No. 3-4, 1998.
  9. Honaker, R. Q., “High Capacity Fine Coal Cleaning Using An Enhanced Gravity Concentrator,” Minerals Engineering, Vol. 11, No. 12, pp. 1191 – 1199, 1998.
  10. Mohanty, M. K. and Honaker, R. Q., “A Comparative Evaluation of the Leading Column Flotation Technologies,” Minerals Engineering, Vol. 12, No. 1, pp. 1 – 13, 1999.
  11. Mohanty, M. K., Honaker, R. Q., and Govindarajan, B., “Development of a Characteristic Flotation Cleaning Index for Fine Coal,” International Journal of Mineral Processing, Vol. 55, pp. 231- 243, 1999.
  12. Mohanty, M. K. and Honaker, R. Q., “Performance Optimization of Jameson Cell Technology for Fine Coal Cleaning,” Minerals Engineering, Vol. 12, No. 4, 1999.
  13. Mohanty, M. K. and Honaker, R. Q., “Evaluation of the Altair Centrifugal Jig for Fine Particle Separations,” Coal Preparation, Vol. 20, pp. 85 – 106, 1999.
  14. Honaker R. Q., Singh, N., and Govindarajan, B., “Application of Dense-Medium in an Enhanced Gravity Separator for Fine Coal Cleaning,” Minerals Engineering, Vol. 13, No. 4, pp. 415 – 427, 2000.
  15. Honaker, R. Q. and Mondal, K., “Dynamic Modeling of Fine Coal Separations in a Hindered Bed Classifier,” Coal Preparation, Vol. 21, No. 3 – 4, 2000.
  16. Patwardwan, A. and Honaker, R. Q., “Development of a Carrying-Capacity Model for Column Froth Flotation, Inter. J. Mineral Processing, Vol. 59, pp. 275 – 293, 2000.
  17. Honaker, R. Q., Patil, D. P., Sirkeci, A. and Patwardhan, A., “Production of Premium Fuels from Coal Refuse Pond Material,” Minerals & Metallurgical Processing, Vol. 18 No. 4, 2001.
  18. Honaker, R. Q., Ozsever, A. V., Singh, N. and Parekh, B. K., “Apex Water Injection For Improved Hydrocyclone Classification Efficiency,” Minerals Engineering, Vol. 14, No. 11, 2001.
  19. Honaker, R. Q. and Patil, D. P., “Parametric Evaluation of a Dense-Medium Process using an Enhanced Gravity Concentrator,” Coal Preparation, Vol. 22, No. 1, 2001.
  20. Sevim, H., Honaker, R. Q., Patwardhan, A. and Huang, B., “Making Medium and High Sulfur Coals Competitive,” Mining Engineering, Vol. 53, No. 12, pp. 49-53, 2002.
  21. Mohanty, M. K., Honaker, R. Q. and Patwardhan, A., “In-Plant Evaluation of the Altair Centrifugal Jig for Fine Coal Cleaning,” Minerals Engineering, Volume 15, pp. 157-166, 2002.
  22. Honaker, R. H. and Ozsever, A. V, “Evaluation of the Selective Detachment Process in Flotation Froth, Minerals Engineering, Volume 16, pp. 975 – 982, 2003.
  23. Honaker, R. H. and Das, A., “Ultrafine Coal Cleaning Using a Centrifugal Fluidized-Bed Separator,” Coal Preparation, Volume 24, No. 1-2, pp. 1 – 18, 2004.
  24. Honaker, R. Q., Taulbee, D., Parekh, B. K. and Tao, D., “Premium Fuel Production from Coal and Timber Waste,” Minerals and Metallurgical Processing Journal, Volume 21, No. 4, 2004.
  25. Honaker, R. Q., Luttrell, G. H. and Yoon, R.-H., “Ultrafine Coal Cleaning Using Selective Hydrophobic Coagulation,” Coal Preparation: An International Journal, Volume 25, No. 2, pp. 81 – 98, 2005.
  26. Honaker, R. Q., Das, A. and Nombe, M., “Improving the Separation Efficiency of the Knelson Concentrator Using Air Injection,” Coal Preparation: An International Journal, Vol. 25. No. 2, pp. 99 – 116, 2005.
  27. Tao, D., Honaker, R. Q. Parekh, P. K., Zhao, C., Han, H., Blue, C. and Dahotre, N. B., “Advanced Surface Enhancement Technology for Decreasing Wear and Corrosion of Equipment Used for Mineral Processing,” Minerals and Metallurgical Processing Journal, Vol. 23 No. 1, pp. 27 – 32, 2006.
  28. Honaker, R. Q., Luttrell, G. H. and Lineberry, G. T., “Improved Coal Mining Economics Using Near-Face Deshaling, Minerals and Metallurgical Processing Journal, Vol. 23. No. 2, pp. 73 – 79, 2006.
  29. Honaker, R. Q., Ozsever, A. V. and Parekh, B. K., “Selective Detachment Process in Column Flotation Froth,” Minerals Engineering, Vol. 19, pp. 687-695, 2006.
  30. Honaker, R. Q. and Patwardhan, A., “In-Plant Evaluation of Dense Medium Process Performances,” Coal Preparation: An International Journal, Vol. 26, pp. 149 – 164, 2006.
  31. Kohmuench, J. N., Mankosa, M. J., Honaker, R. Q. and Bratton, R. C., “Applications of the Crossflow Teeter-Bed Separator in the U.S. Coal Industry,” Minerals and Metallurgical Processing Journal, Vol. 23. No. 4, pp. 187 – 195, 2006.
  32. Honaker, R. Q., Das, A. and Boaten, F., “Slurry Viscosity Modification Effects on Classifying Cyclone Performance,” Canadian Metallurgical Quarterly, Vol. 46, No. 3, pp. 341 – 348, 2007.
  33. Honaker, R. Q., Boaten, F. and Luttrell, G. H., “Ultrafine Coal Classification using 150mm gMax Cyclone Circuits, Minerals Engineering, Vol. 20, pp. 1218 – 1226, 2007.
  34. Honaker, R. Q., Jain, M. and Saracoglu, M., “Ultrafine Coal Cleaning using Spiral Concentrators,” Minerals Engineering, Vol. 20, No. 14, pp. 1315 – 1319, 2007.
  35. Patil, D., Honaker, R.Q. and Parekh, B.K., “Paste Thickening of Fine Coal Refuse,” International Journal of Coal Preparation and Utilization, Vol. 27, No. 4, pp. 191 – 209, 2007.
  36. Honaker, R. Q.,. Saracoglu, M. Thompson, E. Bratton, R Luttrell G. H. and Richardson, V., “Upgrading Coal Using A Pneumatic Density-Based Separator,” International Journal of Coal Preparation and Utilization, Vol. 28, No. 1, pp. 51 – 67, 2008.
  37. Tao, D., Yu, S., Zhou, X. Honaker, R. Q. and Parekh, B. K., “Piccobubble Column Flotation of Fine Coal,” International Journal of Coal Preparation and Utilization, Vol. 28, No. 1, pp. 1 – 14, 2008.
  38. Huggins, F. E., L. B. A. Seidu, N. Shah, G. P. Huffman, R. Q. Honaker, J. R. Kyger, B. L. Higgins, J. D. Robertson, S. Pal, and M. S. Seehra, “Elemental Modes of Occurrence in an Illinois #6 Coal and Fractions Prepared by Physical Separation Techniques at a Coal Preparation Plant,” International Journal of Coal Geology,” Volume 78, pp. 65-76, 2008.
  39. Taulbee, D., D. Patil, R. Q. Honaker and B. K. Parekh, “Briquetting of Coal Fines and Sawdust. Part I: Binder and Briquetting-Parameters Evaluations,” International Journal of Coal Preparation and Utilization, Vol. 29, No. 1, pp. 1 – 22, 2009.
  40. Honaker, R. Q., and C. Bimpong, “Alternative Materials for Dense Medium Separations,” International Journal of Coal Preparation and Utilization, Vol. 29, No. 4, pp. 173 – 191, 2009.
  41. Patil, D., Taulbee, D., Parekh B. K and Honaker, R. Q., “Briquetting of Coal Fines and Sawdust. Effect of Particle-Size Distribution,” International Journal of Coal Preparation and Utilization, Vol. 29, No. 5, pp. 251 – 264, 2009.
  42. Fan, M., Tao, D., Honaker, R. Q., and Luo, Z., “Nanobubble Generation and Its Application in Froth Flotation (Part I): Nanobubble Generation and Its Effects on Properties of Microbubble and Millimeter Scale Bubble Solutions,” Mining Science and Technology, Vol. 20, pp. 1 – 19, 2010.
  43. Fan+, M., Tao*, D., Honaker, R., and Luo, Z., “Nanobubble Generation and Its Applications in Froth Flotation (Part II): Fundamental Study and Theoretical Analysis”, Mining Science and Technology, Vol. 20, No. 2, pp. 159-177, 2010.
  44. Fan, M., Tao, D., Honaker, R., and Luo, Z., “Nanobubble Generation And Its Applications In Froth Flotation (Part III): Specially Designed Laboratory Scale Column Flotation of Phosphate”, Mining Science and Technology, Vol. 20, No. 3, pp. 317-338, 2010.
  45. Fan, M., Tao, D., Honaker, R., and Luo, Z., 2010. “Nanobubble Generation and Its Applications in Froth Flotation (Part IV): Mechanical Cells and Specially Designed Column Flotation Of Coal,” Mining Science and Technology, Vol. 20, No. 5, pp. 641-671, 2010.
  46. Bada, S. O., Tao, D., Honaker, R. Q., Falcon, L. M. and Falcon, R. M. S., “Parametric Study of Electrostatic Separation of South African Fine Coal”, Mining Science and Technology, July, 20(4), pp.535-541, 2010.
  47. Honaker, R.Q., Hollis, R., Switzer, D. and Coker, T., “Development and Evaluation of the CAVEX Dense Medium Cyclone,” International Journal of Coal Preparation and Utilization, Vol. 30, No. 2 – 5, pp. 100 – 112, 2010.
  48. Badda, S., Tao, D., Honaker, R. Q., Falcon, L. M. and Falcon, R. M. S., “A Study of Rotary Tribo-electrostatic Separation of South African Fine Coal,” International Journal of Coal Preparation and Utilization, Vol. 30, No. 2 – 5, pp. 154 – 172, 2010.
  49. Tao, D., Sobhy, A., Li, Q., and Honaker, R., “Dry Cleaning of Pulverized Coal Using Novel Rotary Triboelectrostatic Separator (RTS), International Journal of Coal Preparation and Utilization, 31:187-202, 2011.
  50. Sevim, H. and Honaker, R., “Review of the Evolution of Mining Engineering Curriculum in the U.S.,” Mining Engineering, Vol. 64, No. 10, pp, 27 – 35, 2012.
  51. Huggins, F.E., Seidu, L.B.A., Shah, N., Backus, J., Huffman, G.P. and Honaker, R.Q., “Mobility of Element in Long-Term Leaching Tests on Illinois Coal Rejects,” International Journal of Coal Geology, Vol. 94, pp. 326-336 2012.
  52. Ghosh, T., Patil, D. Honaker, R.Q., Damous, M., Boaten, F., Davis, V.L. and Stanley, F., “Performance Evaluation and Optimization of a Full-Scale Reflux Classifier,” Coal Preparation Society of America Journal, Vol. 11, No. 2, pp. 24-34, 2012.
  53. Honaker, R.Q., Saracoglu, M., Christodoulou, L., Kohmuench, J., Yan, E. and Mankosa, M., “In-Plant Evaluation of Eriez Cavitation Pre-Aeration System,” Coal Preparation Society of America Journal, Vol. 12, No. 3, pp. 24-31, 2013.
  54. Fan, M., Tao, D., Zhao, Y., and Honaker, R. “Effect of Nanobubbles on the Flotation of Different Sizes of Coal Particle,” Minerals & Metallurgical Processing, Vol. 30, No. 3, pp. 157-161, 2013.
  55. Zhang, W., Honaker, R., Li, Y. and Chen, J., “The importance of mechanical scrubbing in magnetite-concentrate reverse-flotation,” Technical Note, Minerals Engineering, Vol. 69, pp. 133–136, 2014.
  56. Ghosh, T., Honaker, R. Q., Patil D. and Parekh, B.K., “Upgrading Low-Rank Coal Using a Dry, Density-Based Separator Technology,” Int. Journal of Coal Preparation and Utilization, Vol. 34, issue 3-4, pp – 198-209, 2014.
  57. Luttrell, G.H., Bethell, P. and Honaker, R. Q., “Designing and Operating Fine Coal Processing Circuits to Meet Market Specifications,” Int. Journal of Coal Preparation and Utilization, Vol. 34, issue 3-4, pp. 172-183, 2014.
  58. Bhagavatula, A., Huffman, G., Shah, N. and Honaker, R. Q. “Evaluation of Thermal Evolution Profiles and Estimation of Kinetic Parameters for Pyrolysis of Coal/Corn Stover Blends Using Thermogravimetric Analysis,” Journal of Fuels, Vol. 2014, Article ID 914856, 12 pages, 2014.
  59. Bhagavatula, A., Huffman, G., Shah, N., Romanek, C., and Honaker, R., “Source Apportionment During Gasification of Coal-Biomass Mixtures Using GC-C-IRMS,” Fuel Processing Technology, Volume 128, 83-93, 2014.
  60. Hower, J., Zhang, Lei and Honaker. R.Q. “Flotation Rate and Zeta Potential of Maceral Concentrates of Bituminous Coals,” Minerals & Metallurgical Processing, Vol. 32, No. 3, 129 – 137, 2015.
  61. Chen, J. and Honaker, R.Q., “Dry Separation on Coal–Silica Mixture using Rotary Triboelectrostatic Separator,” Fuel Processing Technology, Volume 131, pp. 317 – 324, 2015.
  62. Zhang, W., Rezaee, M., Bhagavatula, A., Li, Y., Groppo, J. and Honaker, R.Q. “Review of the Occurrence and Promising Recovery Methods of Rare Earth Elements from Coal and Coal Byproducts,” Int. Journal of Coal Preparation and Utilization, Vol. 35, 1 – 36, 2015.
  63. Hower, J.C., Groppo, J.G., Henke, K.R., Hood, M.M., Eble, C.F., Honaker, R.Q., Zhang, W., Qian, D., 2015. Notes on the potential for the concentration of rare earth elements and Yttrium in coal combustion fly ash. Minerals 5, 356-366. doi:10.3390/min50x000x.
  64. Zhang, W. and Honaker, R.Q., 2015, “Studies on Carbon Flotation from Fly Ash,” Fuel Processing Technology, Vol. 139, 236 – 241.
  65. Amini, S. H., Honaker, R.Q., and Noble, A., 2015, “Assessing the Feasibility of Silica–Based Media for Coal Preparation Operations: A Novel Method of Carbon Feedstock Production for the Silicon Market,” Powder Technology, Vol. 288, 176 – 183.
  66. Zhang, L., Honaker, R.Q., Liu, W., Men, D. and Chen, J., 2015, “Calculation of Terminal Velocity in Transitional Flow for Spherical Particles,” International Journal of Mining Science and Technology, Vol. 25, No. 2, pp. 311 – 317.
  67. Huang, Q., Honaker, R.Q., Perry, K. and Lusk, B., 2016, “Surface Chemistry Modification of Rock Dust for Improved Dispersion and Coal Dust Explosion Prevention,” Transactions of the Society of Mining, Metallurgy and Exploration, Volume 338, pp. 448 – 456.
  68. Huggins, F. E., Rezaee, M., Honaker, R. Q. and Hower, J. C., 2016 “On the removal of hexavalent chromium from a Class F fly ash,” Waste Management, 51, pp. 105-110.
  69. Huang, Q. and Honaker, R., 2016 “Recent Trends in Rock Dust Modifications for Improved Dispersion and Coal Dust Explosion Prevention,” Journal of Loss Prevention in the Process Industries, Vol. 41, pp. 121 – 128.
  70. Ghosh, T., Salazar, A. and Honaker, R. Q., “Numerical Modeling of an Air-Based Density Separator,” International Journal of Coal Preparation and Utilization, Manuscript ID GCOP-2016-0011.R1, accepted 3/11/2016.
  71. Amini, S. H., Honaker, R.Q., and Noble, A., 2016, “Performance Evaluation of a Dense-Medium Cyclone Using Alternative Silica-Based Media;” Powder Technology, Vol. 297, pp. 292 – 300.
  72. Li, Yonggai, Honaker, R.Q., Chen, J. and Shen, L., 2016, “Effect of Particle Size on the Reverse Flotation of Subbituminous Coal,” Powder Technology, Vol. 301, pp. 323 – 330.
  73. Rezaee, Mohammad, Warner, R., and Honaker, R.Q., 2016, “Development of an Electrical Conductivity Screening Test for Mine Waste Assessments,” Chemosphere, Volume 160, pp. 13-21.
  74. Huang, Q. and Honaker, R., 2016, “Optimized Reagent Dosage Effect on Rock Dust to Enhance Rock Dust Dispersion and Explosion Mitigation in Underground Coal Mines Powder Technology,” Powder Technology, Volume 301, pp. 1193-1200.
  75. Honaker, R.Q., Saracoglu, M. and Huang, Q., 2016, “Application of Hydrophobic and Magnet Plastic Particles for Enhanced Flotation Recovery,” Minerals Engineering, Volume 98, pp. 223-231.
  76. Bhagavatula, A., Shah, N. and Honaker, R. Q., 2016 “Estimating the Pyrolysis Kinetic Parameters of Coal-Biomass Blends: A Comparative Study,” Energy and Fuels, 2016, 30 (12), pp 10045–10054.
  77. Zhang, Wencai, Honaker, R.Q. and Groppo, J., 2017, “Flotation of monazite in the presence of calcite part I: Calcium ion effects on the adsorption of hydroxamic acid,” Minerals Engineering, Volume 100, pp. 40 – 48.
  78. Honaker, R.Q., Groppo, J., Yoon, R.-H., Luttrell, G.H., Noble, A. and Herbst, J., 2017, “Process Evaluation and Flowsheet Development for the Recovery of Rare Earth Elements from Coal and Associated Byproducts,” Minerals & Metallurgical Processing Journal, Vol. 34, No. 3, pp. 107-115.
  79. Zhang, Wencai, Honaker, R.Q. and Groppo, J., 2017, “Concentration of Rare Earth Minerals from Coal by Froth Flotation,” Minerals & Metallurgical Processing Journal, Vol. 34 No. 3, pp. 132 – 137.
  80. Zhang, Wencai and Honaker, R.Q., 2017, “Adsorption of Octanohydroxamic Acid on Monazite Surfaces,” International Journal of Mineral Processing, Vol. 164, pp. 26 – 36.
  81. Zhang, Wencai and Honaker, R.Q., 2017, “Surface Charge of Monazite in Aqueous Solutions,” Powder Technology, Vol. 318, pp. 263 – 271.
  82. Zhang, Wencai, Xinbo, Y. and Honaker, R.Q., 2017, “Association characteristic study and preliminary recovery investigation of rare earth elements from Fire Clay seam coal middlings,” Fuel, Vol. 215, pp. 551-560.
  83. Honaker, R.Q., Saracoglu, M. and Huang, Q., 2017, “Evaluation of a novel coal flotation improvement approach with the addition of hydrophobic magnetic particles,” International Journal of Coal Preparation and Utilization, https://doi.org/10.1080/19392699.2017.1419208; Online post: 12/20/2017.
  84. Zhang, Wencai and Honaker, R.Q., 2018, “Flotation of monazite in the presence of calcite part II: Enhanced separation performance using sodium silicate and EDTA,” Minerals Engineering, Volume 127, pp. 318-328.
  85. Huang, Qingqing, Noble, Aaron, Herbst, John and Honaker, Rick, 2018, “Liberation and Release of Rare Earth Minerals from Middling Kittanning, Fire Clay, and West Kentucky No. 13 Coal Sources,” Powder Technology, Volume 332, pp. 242 – 252.
  86. Honaker, R. Q., Zhang, W., Yang, X. and Razaee, M., 2018, “Conception of an Integrated Flowsheet for Rare Earth Elements Recovery from Coal Coarse Refuse,” Minerals Engineering, Vol. 122, pp. 233 – 240.
  87. Zhang, W. and Honaker, R.Q., 2018, “Rare earth elements recovery using staged precipitation from a leachate generated from coarse coal refuse,” International Journal of Coal Geology, Vol 195, pp. 189 – 199.
  88. Yang, X., Werner, J., and Honaker, R.Q., 2019, “Leaching of Rare Earth Elements from an Illinois Basin Coal Source,” Journal of Rare Earths, Volume 37, No. 3, pp. 312 – 321.
  89. Zhang, W. and Honaker, R.Q., 2019, “Calcination Pretreatment Effects on Acid Leaching Characteristics of Rare Earth Elements from Middlings and Coarse Refuse Material Associated with a Bituminous Coal Source,” Fuel, Volume 249, pp. 130 – 145.
  90. Rezaee, M., Rajagopalan, V. R., and Honaker, R. Q., 2019, “Conceptual Modifications of Coal Preparation Plants to Minimize Potential Environmental Issues Associated with Coal Waste Disposal,” Fuel, Volume 250, Pages 352-361.
  91. Honaker, R.Q., Zhang, W., and Werner, J., 2019, “Acid Leaching of Rare Earth Elements from Coal and Coal Ash: Implications for Using Fluidized Bed Combustion to Assist in the Recovery of Critical Materials,” Energy & Fuels, 33(7), 5971-5980, https://doi.org/10.1021/acs.energyfuels.9b00295.
  92. Luttrell, G. H., Kiser, M., Yoon, R.-H., Noble, A., Rezaee, M., Bhagavatula, A. and Honaker, R.Q., 2019, “A Field Survey of Rare Earth Element Concentrations in Process Streams Produced by Coal Preparation Plants in the Eastern United States,” Journal of Mining, Metallurgy and Exploration, 36(5), 889-902 https://doi.org/10.1007/s42461-019-00124-5
  93. Zhang, W. and Honaker, R.Q., 2019, “Enhanced Leachability of Rare Earth Elements from Calcined Products of Bituminous Coals,” Minerals Engineering, 142, https://doi.org/10.1016/j.mineng.2019.105935.
  94. Dube, R. and Honaker, R.Q., 2019, “Improving the Flotation Performance of an Oxidized Bituminous Coal Source,” Minerals Engineering, 142, https://doi.org/10.1016/j.mineng.2019.105937.
  95. Honaker, R.Q., Zhang, W., Werner, J., Noble, A., Luttrell, G.H. and Yoon, R.-H., 2020, “Enhancement of a Process Flowsheet for Recovering and Concentrating Critical Materials from Bituminous Coal Sources,” J. Mining, Metallurgy and Exploration, Volume 37, Issue 1, pp. 3–20; http://link.springer.com/article/10.1007/s42461-019-00148-x, DOI 10.1007/s42461-019-00148-x.
  96. Huang, Q., Yang, X. and Honaker, R.Q., 2019, “Evaluation of Frother Types for Improved Flotation Recovery and Selectivity,” Minerals 9(10), 590; https://doi.org/10.3390/min9100590.
  97. Zhang, W. and Honaker, R.Q., 2020, “Characterization and Recovery of Rare Earth Elements and Other Critical Metals (Co, Cr, Li, Mn, Sr, and V) from the Calcination Products of a Coal Refuse Sample,” Fuel, 267, 117236.
  98. Rezaee, M. and Honaker, R., 2020, “Long-term Leaching Characteristic Study of Coal Processing Waste Streams,” Chemosphere, Volume 249, https://doi.org/10.1016/j.chemosphere.2020.126081.
  99. Zhang, W., Noble, A., Yang, X., and Honaker, R.Q., 2020, “Lithium Leaching Recovery and Mechanisms from Density Fractions of an Illinois Basin Bituminous Coal,” Fuel, 268, 117319.
  100. Zhang, W. and Honaker, R.Q., 2020, “Process Development for the Recovery of Rare Earth Elements and Critical Metals from an Acidic Mine Leachate,” Minerals Engineering, 153, https://doi.org/10.1016/j.mineng.2020.106382.
  101. Zhang, W., Noble, A., Yang, X., and Honaker, R.Q., 2020. “A Comprehensive Review of Rare Earth Elements Recovery from Coal-Related Materials,” Minerals 2020, 10(5), 451; https://doi.org/10.3390/min10050451.
  102. Yang, X. and Honaker, R.Q., 2020. “Leaching Kinetics of Rare Earth Elements from Fire Clay Seam Coal,” Minerals, 10(6), 491; https://doi.org/10.3390/min10060491.
  103. Alireza Valian, John G. Groppo, Cortland F. Eble, James C. Hower, Rick Q. Honaker, Stephen F. Greb, 20210 “Distribution of Rare Earth Elements in the Illinois Basin Coals,” Journal of Mining, Metallurgy and Exploration, Volume 38, pages 1645–1663, https://doi.org/10.1007/s42461-020-00257-y 
  104. Lin, P.; Yang, X.; Werner, J.M.; Honaker, R.Q. 2021, “Application of Eh-pH Diagrams on Acid Leaching Systems for the Recovery of REEs from Bastnaesite, Monazite and Xenotime,” Metals, 11, 734. https://doi.org/10.3390/met1105073.
  105. Ji, B., Li, Q., Honaker, R.Q., Zhang, W., 2022. “Acid Leaching Recovery and Occurrence Modes of Rare Earth Elements,” Minerals Engineering, 175, 107278.
  106. Podder, Prasenjit, Zhang, Z., Free, M.L., Honaker, R.Q., and Sarswat, P.K. 2021. “Evaluating and Enhancing Iron Removal via Filterable Iron Precipitates Formation during Coal-Waste Bioleaching,” Eng, 2, 632–642.
  107. Nawab, A., Yang, X. and Honaker, R.Q., 2022. Parametric Study and Speciation Analysis of Rare Earth Precipitation using Oxalic Acid in a Chloride Solution System, Minerals Engineering, 176, 107352.
  108. Li, Qi, Ji, B., Honaker, R.Q., Noble, A. and Zhang, W., 2022 “Partitioning Behavior and Mechanisms of Rare Earth Elements during Precipitation in Acid Mine Drainage,” Colloids and Surfaces A: Physicochemical and Engineering Aspects, 641, 128563.
  109. Nawab, A., Yang, X. and Honaker, R.Q., 2022. “An acid baking approach to enhance heavy rare earth recovery from bituminous coal-based sources,” Minerals Engineering, 176, 107352.
  110. Jiao, Huazhe, Chen, W., Wu, A.,Yu, Y., Ruan, Z, Honaker, R., Chen, X, and Yu, J., 2022. “Flocculated unclassified tailings settling efficiency improvement by particle collision optimization in the feedwell,” International Journal of Minerals, Metallurgy and Materials, 29, pp. 2126–2135.
  111. Gupta, T., Nawab, A. and Honaker, R.Q., 2023. “Removal of Iron from Pyrite-Rich Coal Refuse by Calcination and Magnetic Separation for Hydrometallurgical Extraction of Rare Earth Elements,” Minerals, 13(3), 327, https://doi.org/10.3390/min13030327.
  112. Gupta, T., Nawab, A. and Honaker, R.Q., 2023. “Pretreatment of Bituminous Coal By-Products for the Hydrometallurgical Extraction of Rare Earth Elements,” Minerals, 13(5), 614, https://doi.org/10.3390/min13050614.
  113. Nawab, A. and Honaker, R.Q., 2023. “Pilot scale testing of lignite adsorption capability and the benefits for the recovery of rare earth elements from dilute leach solutions,” Minerals, Vol. 13, Issue 7, 921; https://doi.org/10.3390/min13070921.
  114. Gupta, T., Nawab, A. and Honaker, R.Q., 2023. “Optimizing calcination of coal by-products for maximizing REE leaching recovery and minimizing Al, Ca, and Fe contamination,” Journal of Rare Earths, https://doi.org/10.1016/j.jre.2023.08.004.
  115. Srivastava, V., Werner, J. and Honaker, R.Q., 2023. “Design of Multi-Stage Solvent Extraction Process for Separation of Rare Earth Elements,” Mining. 3(3), 552-578; https://doi.org/10.3390/mining3030031.
  116. Nawab, A., Yang, X. and Honaker, R.Q., 2023. “Parametric study of an acid baking process for rare earth element recovery from a bituminous-coal source,” International Journal of Coal Preparation and Utilization, https://doi.org/10.1080/19392699.2023.2269094.
  117. Khodakarami, M. and Honaker, R.Q., 2023, “Photothermal Floating Aerogels Based on Chitosan Functionalized with Polydopamine and Carbon Nanotubes for Removal of Arsenic from Wastewater,” Science of the Total Environment, STOTEN-D-23-31183R1, Volume 912, p 169519; doi.org/10.1016/j.scitotenv.2023.169519.
  118. Gupta, T., Nawab, A. and Honaker, R.Q., 2024, “Effect of Calcination Atmosphere on the Acid Leaching Recovery of Rare Earth Elements in Coal-Byproducts,” Mineral Processing and Extractive Metallurgy Review, DOI: 10.1080/08827508.2024.2309930
  119. Asgari, Kaveh, Huang, Qingqing, Honaker, Rick and Sabolsky, Edward, 2024, “Investigating the Effect of Microwave Pretreatment on Bastnasite Grinding for Comminution Energy Reduction and Rare Earth Recovery,” Process, 12, 2468. https://doi.org/10.3390/pr12112468.
     

Conference Papers

Peer-Reviewed

  1. Honaker, R. Q., Paul, B. C., Wang, D. and Ho, K., “Enhanced Gravity Separation: An Alternative to Flotation,” in High Efficiency Coal Preparation (ed. S. K. Kawatra,) Society for Mining, Metallurgy, and Exploration, Inc., Littleton, Colorado, Chapter 5, pp. 69 – 78, 1995.
  2. Mankosa, M., Stanley, F. and Honaker, R. Q., “Combining Hydraulic Classification and Spiral Separation for Improved Efficiency in Fine Coal Cleaning,” in High Efficiency Coal Preparation (ed. S. K. Kawatra,) Society for Mining, Metallurgy, and Exploration , Inc., Littleton, Colorado, Chapter 7, pp. 99 – 108, 1995.
  3. Honaker, R. Q., Mohanty, M. K. and Patwardhan, A., , “High Quality Coal Extraction and Environmental Remediation of Fine Coal Refuse Ponds Using Advanced Cleaning Technologies,” Environmental Issues and Waste Management in Energy Production (editors: A. G. Pasamehmetoglu and A. Ozgenoglu) A. A. Balkema Publishing, Brookfield, Vermont, pp. 573 – 579, 1998.
  4. Honaker, R. Q., Mondal, K., Arnold, B., and Shirey, G., , “Generating Products from Coal Combustion Fly Ash using Physical Separations,” Environmental Issues and Waste Management in Energy Production (editors: A. G. Pasamehmetoglu and A. Ozgenoglu) A. A. Balkema Publishing, Brookfield, Vermont, pp. 565 – 572, 1998.
  5. Honaker, R. Q., Mohanty, M. K., and Govindarajan, “Enhanced Gravity Concentration: An Effective Tool for Fine Coal Cleaning,” Proceedings of the XIII International Coal Preparation Congress (editors: A. C. Partridge and I. R. Partridge) Australian Coal Preparation Society, Newcastle, Australia, pp. 349 – 357, 1998.
  6. Patwardhan, A., Sevim, H., and Honaker, R. Q., “Generating Incremental Income through Plant Optimization and Advanced Fine Coal Cleaning,” Innovations in Mineral and Coal Processing (editors: S. Atak, G. Onal and M. S. Celik) A. A. Balkema Publishing, Brookfield, Vermont, pp. 427 – 432, 1998.
  7. Honaker, R. Q., Patwardhan, A., Mohanty, M. K. and Bhaskar, K. U., Fine Coal Cleaning Using the Jameson Cell: The North American Experience,” Advances in Flotation Technology, (editors: B. K. Parekh and J. D. Miller) Society of Mining, Metallurgy and Exploration, Littleton, Colorado, pp. 331 – 341, 1999.
  8. Murphy, A. S., Honaker, R. Q., Manlapig, E. V., Lee, D. J., and Harbort, G. J., “Breaking the Boundaries of the Jameson Cell Capacity,” Proceedings of the 8th Australian Coal Preparation Conference, Australian Coal Preparation Society, Port Stephens, Australia, November 12-16, 2000, pp. 319-336.
  9. Honaker, R. Q. and Ozsever, A. V., 2003, “Innovations in fine coal density separations,” In Advances in Gravity Concentration, eds. R. Q. Honaker and W. R. Forrest, Society for Mining Metallurgy & Exploration, Littleton, CO, pp. 125-140, ISBN: 0873352270.
  10. Nombe, M., Yingling, J., and Honaker R. Q., 2003, “Methodology for Performance Characterization of Gravity Separators,” In Advances in Gravity Concentration, eds. R. Q. Honaker and W. R. Forrest, Society for Mining Metallurgy & Exploration, Littleton, CO, pp. 71-78, ISBN: 0873352270.
  11. Luttrell, G. H. and Honaker, R. Q., “Practical Optimization of Coal Preparation Plants,” In Innovations in Natural Resource Process, Courtney A. Young, Jon J. Kellar, Michael L. Free, Jaroslaw Drelich, and R.P. King, Society for Mining Metallurgy & Exploration, Littleton, CO, p. 444, 2005.
  12. Honaker, R. Q., Ozsever, A. V. and Parekh, B. K., “Selective Detachment Process in Column Flotation Froth,” In Centenary of Flotation, eds., G. Jameson and R. H. Yoon, Australian Institute of Mining and Minerals, Carlton South, Victoria, Australia, 2005.
  13. Honaker, R. Q., Das, A., Boaten, F., and Parekh, B. K., “Slurry Viscosity Modification Effects on Classification Cyclone Performance,” In Interfacial Phenomena in Fine Particle Technology, eds., Z. Xu and Q. Liu, Canadian Institute of Mining, Metallurgy and Petroleum, Montreal, Canada, pp. 243 – 256, 2006.
  14. Honaker, R. Q., Luttrell, G.H., and Bethell, P., “Status of Current Coal Preparation Research,” In Designing the Coal Preparation Plant of the Future, eds., Barbara Arnold, Mark S. Klima and Peter J. Bethell, Society of Mining, Metallurgy and Exploration, Littleton, Colorado, pp. 181 – 198, 2007.
  15. Luttrell, G.H., Honaker, R.Q., Bethell, P.J. and Stanley, F.L., “Design of High-Efficiency Spiral Circuits for Preparation Plants” In Designing the Coal Preparation Plant of the Future, eds., Barbara Arnold, Mark S. Klima and Peter J. Bethell, Society of Mining, Metallurgy and Exploration, Littleton, Colorado, pp. 73 – 87, 2007.
  16. Tao, D., Fan. M. and Honaker, R. Q., “Enhanced Fine Coal Column Flotation Using Cavitation Concept,” In International Coal Preparation Congress 2010 Proceedings, ed. R. Honaker, Society of Mining, Metallurgy and Exploration, Littleton, Colorado, pp. 413 – 420, 2010.
  17. Honaker, R. Q., Luttrell, G. H. and Mohanty, M. K., “Coal Preparation Research in the USA,” In International Coal Preparation Congress 2010 Proceedings, ed. R. Honaker, Society of Mining, Metallurgy and Exploration, Littleton, Colorado, pp. 864 – 874, 2010.
  18. Tao, D., Fan, M., and Honaker, R., “Pilot-scale study of deep cone thickener for phosphatic clay dewatering”, in Proceedings of XXV International Mineral Processing Congress, Brisbane, Australia, September 6-10, 2010.
  19. Tao, D. Chen. G., Parekh, B.K., Honaker, R. and Zhang, P., “Laboratory Studies on Flocculation of Phosphatic Clay and Sand/Clay Mixture as a Forerunner to Phosphate Tailings Disposal using the Deep Cone Paste Technology – Part I. Screening of Anionic and Cationic Polymers,” in Beneficiation of Phosphates: Technology Advance and Adoption, P. Zhang, K. Swager, L. Filho and H. El-Shall, editors, Society of Mining, Metallurgy and Exploration, Littleton, Colorado, Chapter 9, pp. 95 – 116, 2010.
  20. Tao, D. Chen. G., Parekh, B.K. and Zhang, P., “Laboratory Studies on Flocculation of Phosphatic Clay and Sand/Clay Mixture as a Forerunner to Phosphate Tailings Disposal using the Deep Cone Paste Technology – Part I. Rheological Characterization,” in Beneficiation of Phosphates: Technology Advance and Adoption, P. Zhang, K. Swager, L. Filho and H. El-Shall, editors, Society of Mining, Metallurgy and Exploration, Littleton, Colorado, Chapter 10, pp. 117 – 132, 2010.
  21. Gupta, N., Bratton, R., Luttrell, G., Ghosh, T. and Honaker, R., “Application of Air Table Technologies for Cleaning Indian Coals” in Separation Technologies for Minerals, Coal and Earth Resources, Society of Mining, Metallurgy and Exploration, Littleton, pp. 199 – 209, 2011.
  22. Honaker, R.Q., “Gravity Separators for Ultrafine Coal Cleaning,” Challenges in Fine Coal Processing, Dewatering and Disposal, eds., Barbara Arnold, Mark S. Klima and Peter J. Bethell, Society of Mining, Metallurgy and Exploration, Littleton pp. 227-240, 2012.
  23. Honaker, R.Q., Duan, Z., Cobb, D. and Baird, S. “Stabilization of Fine Coal Waste as an Alternative Disposal Technique,” in Environmental Considerations in Energy Production (J.R Craynon, editor), pp. 32 – 41, 2013.
  24. Rezaee, M., Huggins, F. E. and Honaker, R. Q., “Minimizing the Environmental Impacts of Coal Waste Disposal,” in Environmental Considerations in Energy Production (J.R Craynon, editor), pp. 60 – 76, 2013.
  25. Luttrell, G.H., Bethell, P. and Honaker, R.Q., “Designing and Operating Fine Coal Processing Circuits to Meet Market Specifications,” in International Coal Preparation Congress 2013 Proceedings (G. Özbayoğlu and A.I. Arol, editors) pp. 517 – 524, 2013.
  26. Ghosh, T., Honaker, R.Q., Patil, D. and Parekh, B.K., “Upgrading Low Rank Coal Using a Dry, Density-Based Separator Technology,” in International Coal Preparation Congress 2013 Proceedings (G. Özbayoğlu and A.I. Arol, editors) pp. 295 – 300, 2013.
  27. Honaker, R.Q., Dunne, R. C. and Galvin, K., “Density-Based Separation Innovations in Coal and Minerals Processing Applications,” in Mineral Processing and Extractive Metallurgy: 100 Years of Innovation (C.G. Anderson, R.C. Dunne and J.L. Uhrie, editors), Society of Mining, Metallurgy and Exploration pp. 243 – 264, 2014.
  28. Ghosh, T., Rezaee, M., Honaker, R.Q. and Saito, K., “Scale and Numerical Modeling of an air-based density separator,” Progress in Scale Modeling Vol. 2, ISBN: 978-3-319-10308-2, Springer, pp. 225-238, 2014 (30% acceptance rate).
  29. Zhang, Wencai, Honaker, R.Q. and Groppo, J., “Fundamental Study of the Monazite-Calcite Flotation Separation,” Proceedings of the International Minerals Processing Congress, ISBN: 978-1-926872-29-2, Paper ID 340.
  30. Honaker, R.Q., Yang, X., Chandra, A., Zhang, W. and Werner, J., 2018, Hydrometallurgical Extraction of Rare Earth Elements from Coal,” Proceedings of Extraction 2018, Ottawa, Canada, DOI: 10.1007/978-3-319-95022-8_193.
  31. Honaker, R.Q., Noble, A. and Luttrell, G.H., 2019, “Applications for X-Ray Transmission Sorters in Coarse Coal Upgrading,” in Challenges and Opportunities in Coal Preparation, Society for Mining, Metallurgy and Exploration, Englewood, Colorado (eds., M.S. Klima, B.J. Arnold and P.J. Bethell), pp. 33-54.
  32. Chandra, A., Werner, J. and Honaker, R.Q., 2020, "Development of a Thermodynamic Model for the Prediction of Solvent Extraction Distribution Coefficients," Proceedings of the 59th Annual Conference of Metallurgists (COM 2020), Paper No. 819731 (2020).
  33. Honaker, R. Q., Chandra, A., Zhang, W., Werner, J., Yang, X. and Noble, A., 2020, "Pilot Plant Evaluations of Rare Earth Element Recovery and Concentration from Pre-Combustion Bituminous Coal Sources," Proceedings of the 59th Annual Conference of Metallurgists (COM 2020), Paper No. 819731 (2020).
  34. Honaker, R.Q., and Zhang, Y., 2023, “Pilot Scale Parametric Study and Optimization of a Three-Product Dense Medium Cyclone,” Proceedings of the XX International Coal Processing Congress, Australian Coal Preparation Society, Paper 8A
     

Abstract Reviewed, Full Papers

  1. Honaker, R.Q., Luttrell, G.H., and Yoon, R.H., “Application of Hydrophobic Coagulation for Upgrading Ultrafine Coal,” Proceedings, Society for Mining, Metallurgy, and Exploration, Inc. Annual Meeting, Preprint Number 91-149, Denver, Colorado, February, 1991.
  2. Honaker, R. Q., Paul, B. C., Wang, D., and Huang, M., “The Application of Centrifugal Washing for Fine Coal Cleaning,” Society for Mining, Metallurgy, and Exploration, Inc. Annual Meeting, Preprint No. 94-611, 1994.
  3. Honaker, R. Q., Luttrell, G. H., and Yoon, R. H., “In-Situ Measurements of Coagula Size Using an On-Line Particle Size Analyzer,” Society for Mining, Metallurgy, and Exploration, Inc. Annual Meeting, Preprint 94-258, 1994.
  4. Honaker, R. Q., and Paul, B., “Development of Fugitive Dust Control Methods for Coal Combustion Residue Disposal,” Conference on Management of High Sulfur Coal Combustion Residues: Issues and Practices, Coal Combustion Residues Management Program, SIUC, 1994, pp. 189 – 204.
  5. Paul, B. C., Honaker, R. Q., and Wang, D., “Production of Illinois Basin Compliance Coal Using Enhanced Gravity Separation,” Tenth Annual Coal Preparation, Utilization, and Environmental Control Contractors Meeting, U.S. Department of Energy, Vol. I, p. 55, 1994.
  6. Honaker, R. Q., Paul, B. C., and Mohanty, M. K., “A Comparison Study of Commercially-Available Column Flotation Technologies,” Tenth Annual Coal Preparation, Utilization, and Environmental Control Contractors Meeting, U.S. Department of Energy, Vol. I, p. 109, 1994.
  7. Honaker, R. Q., Mohanty, M. K., Paul, B. C., and Ho, K., “A Comparison Study of Commercially-Available Column Flotation Technologies,” Eleventh Annual International Pittsburgh Coal Conference, Vol. 2, pp. 854 – 859, 1994.
  8. Honaker, R. Q., “Coal Preparation: Past, Present and Future,” Coal People, Editorial, Vol. 19, No. 12, p. 5, 1995.
  9. Honaker, R. Q. and Mohanty, M. K., “Comparison of Column Flotation Cells,” Proceedings, 12th International Coal Preparation Conference, Lexington, Kentucky, May 2 – 4, pp. 175 – 190, 1995.
  10. Reed, S., Riffey, R., Honaker, R. Q., and Mankosa, M. J., “In-Plant Testing of the Floatex Density Separator for Fine Coal Cleaning,” Proceedings, 12th International Coal Preparation Conference, Lexington, Kentucky, May 2 – 4, pp. 163 – 174, 1995.
  11. Luttrell, G. H., Honaker, R. Q., and Phillips, D. I., “Enhanced Gravity Separators: New Alternatives for Fine Coal Cleaning,” Proceedings, 12th International Coal Preparation Conference, Lexington, Kentucky, May 2 – 4, pp. 281 – 292, 1995.
  12. Honaker, R. Q., Mohanty, M. K., Wang, D., and Reed, S., “Fine Coal Circuitry Study Using Flotation and Gravity Separation,” Proceedings, Eleventh Annual Coal Preparation, Utilization, and Environmental Control, U. S. Department of Energy, Pittsburgh, Pennsylvania, July 12- 14, 1995.
  13. Honaker, R. Q., “Hindered-Bed Classifiers for Fine Coal Cleaning,” Proceedings, 13th International Coal Preparation Conference, Lexington, Kentucky, April 30 – May 2, pp. 59 – 69, 1996.
  14. Honaker, R. Q., Mohanty, M. K., Wang, D. and Ho, K., “Fine Coal Circuitry Using Advanced Physical Cleaning Processes,” 13th Annual International Pittsburgh Coal Conference, Pittsburgh, Pennsylvania, September 3 – 6, 1996.
  15. Mohanty, K., Honaker R.Q., Patwardhan, A. and Ho, K., “A Modified Procedure To Measure The True Flotation Response Of Coal,” Society for Mining, Metallurgy, and Exploration Annual Meeting, Denver, Co, February 24 – 27, 1997, Preprint No. 97-178, 1997.
  16. M. K. and Honaker, R. Q., “Evaluation of the Altair Centrifugal Jig for Fine Particle Separations,” Society for Mining, Metallurgy, and Exploration Annual Meeting, Orlando, Florida, March 9 – 12, 1998, Preprint No. 98-169.
  17. Honaker, R. Q. and Wang, D., “Falcon Concentrators: A High Capacity Fine Coal Cleaning Technology,” Society for Mining, Metallurgy, and Exploration Annual Meeting, Orlando, Florida, March 9 – 12, 1998, Preprint No. 98-212.
  18. Honaker, R. Q., Chugh, Y. P. and Patwardhan, A., “Advanced Reclamation Of Coal Refuse Ponds,” Proceedings of the 15th International Pittsburgh Coal Conference (editor: Shiao-Hung Chiang) Pittsburgh, Pennsylvania, September 14 – 16, 1998.
  19. Honaker, R. Q., Patwardhan, A., and Sevim, H., “Improved Profitability Using Optimization and Advanced Fine Coal Cleaning for Illinois Mines,” Proceedings, Illinois Mining Institute Annual Meeting, Collinsville, Illinois, September 24- 25, 1998.
  20. Honaker, R. Q. and Govindarajan, B. J., 1998, “Enhanced Gravity Concentration: An Effective Tool for Fine Coal Cleaning,” Inside Coal Research, SIUC Coal Research Center Publication, Vol. 4, No. 3, 1998.
  21. Honaker, R. Q. and Mondal, K., “Dynamic Modeling Of Fine Coal Separations In A Hindered Bed Classifier,” Society for Mining, Metallurgy, and Exploration Annual Meeting, Denver, Colorado, March 1 – 3, Preprint No. 99-170, 1999.
  22. Honaker, R. Q., Patwardhan, A., and Sevim, H., “Improving Mine Profitability through Advanced Fine Coal Cleaning,” Proceedings, 16th International Coal Preparation Conference, Lexington, Kentucky, April 27 – 29, pp. 105 – 123, 1999.
  23. Honaker, R. Q. and Ghafoori, N., “Incorporating Engineering Research into Classroom Teaching,” Proceedings, International Conference on Engineering Education, Ostrava-Prague, Czech Republic, August 10 – 14, 1999.
  24. Honaker, R. Q. and Singh, N., “The Application of Dense Medium in an Enhanced Gravity Separator for Fine Coal Cleaning,” Proceedings, 16th International Pittsburgh Coal Conference, Pittsburgh, Pennsylvania, October 11 – 15, 1999.
  25. Ghafoori, N., Honaker, R. Q., and Sevim, H., “Processing, Transporting, and Utilizing Coal Combustion By-Products,” Proceedings, 1999 International Ash Utilization Symposium, Lexington, Kentucky, October 18 – 20, pp. 101 – 115, 1999.
  26. Sevim, S., Huang, B., and Honaker, R., “Producing Competitive and Compliant Fuel From Medium And High Sulfur Coals,” Society for Mining, Metallurgy, and Exploration Annual Meeting, Salt Lake City, February 28 – March 1, Preprint No. 00-163, 2000. 
  27. Honaker, R. Q., Patil, D. P., Sirkeci, A. and Patwardhan, A., “Production of Premium Fuels from Coal Refuse Pond Material,” Society for Mining, Metallurgy, and Exploration Annual Meeting, Salt Lake City, February 28 – March 1, Preprint No. 00-001, 2000.
  28. Parekh, B. K. and Honaker, R. Q., “Innovation in Coal Cleaning,” Proceedings, India Coal Preparation 2000, New Dehli, India, March 9 – 11, 2000.
  29. Honaker, R. Q., Patil, D. P. and Singh, N., Application of Dense Medium to Enhanced Gravity Concentration,” Proceedings, 17th International Coal Preparation Conference, Lexington, Kentucky, May 2 – 4, pp. 277 – 289, 2000.
  30. Murphy, A. S., Honaker, R. Q., Manlapig, E. V., Lee, D. J., and Harbort, G. J., “Breaking the Boundaries of the Jameson Cell Capacity,” Proceedings, 12th Australian Coal Preparation Conference, September, 2000.
  31. Honaker, R. Q., Parekh, B. K. and Chugh, Y. P., “Integration of Advanced Fine Particle Technologies for Efficient Carbon Recovery from Refuse Ponds,” Proceedings, 17th International Pittsburgh Coal Conference, Pittsburgh, Pennsylvania, September 11 – 15, 2000.
  32. Sevim, H., Patwardhan, A., Huang, B. and Honaker, R. Q., “Effect of Coal Cleaning and SO2 Allowance on Cost of Compliance Coal,” Proceedings, VIII International Mineral Processing Symposium, Antalya, Turkey, October 16 – 18, 2000.
  33. Honaker, R. Q., Singh, N., and Patil, D. P., “Enhanced Gravity Beneficiation Using a Dense-Medium for Fine Particle Gravity Separations,” Proceedings, VIII International Mineral Processing Symposium, Antalya, Turkey, October 16 – 18, 2000.
  34. Honaker, R. Q., Ozsever, A. V. and Parekh, B. K., “Gravity-Based Separations Using a Hydraulic Classifier for Fine Coal Cleaning,” Proceedings, 2001 SME Annual Meeting, Denver, Colorado, February 26- 28, 2001, Preprint No. 01-186.
  35. Honaker, R. Q., Ozsever, A., Singh, N. and Parekh, B. K., “Improved Classification Efficiency Using the Krebs Cyclowash System,” Proceedings, 18th International Coal Preparation Conference, Lexington, Kentucky, May 1-3, 2001, pp. 101-112.
  36. Honaker, R. Q. and Parekh, B. K., “Innovation in Coal Cleaning,” Proceedings, 18th International Coal Preparation Conference, Lexington, Kentucky, May 1-3, 2001, pp. 189-206.
  37. Honaker, R. Q., “Enhanced Gravity Separators And Their Application Toward Fine Coal Cleaning,” Proceedings, 11th International Conference on Coal Science, San Francisco, September 30 – October 5, 2001.
  38. Patwardhan, A., Honaker, R. Q., and Sevim, H., “Economic Benefits of Plant Optimization and Advanced Coal Cleaning,” Proceedings: International Conference on Challenge in Coal and Mineral Beneficiation, New Delhi, India, pp. 83-96 December 2001.
  39. Chugh, Y.P., Patwardhan, A., Patil, D. P., Honaker, R. Q., Parekh, B. K., Tao. D., Chen, Z. and Khan, L., “Integrated Carbon Recovery Systems for Fine Coal Processing Waste,” Proceedings: 27th International Technical Conference on Coal Utilization and Fuel Systems, Clearwater, Florida, March 2002.
  40. Kohmuench, J. N., Mankosa, M. J., and Honaker, R. Q., “Advances in Teeter-Bed Technology for Coal Cleaning Applications,” In Advances in Gravity Concentration, eds. R. Q. Honaker and W. R. Forrest, Society for Mining Metallurgy & Exploration, Littleton, CO, pp. 115-124, ISBN: 0873352270, 2003.
  41. Luttrell, G. H., Honaker, R. Q., Bethell, P. J. and Stanley, F. L., 2003, “Operating Guidelines For Coal Spiral Circuits,” Proceeding, 20th International Coal Preparation Conference, Lexington, Kentucky, pp. 67 – 78, April 2003.
  42. Honaker, R. Q., Ozsever, A. V. and Parekh, B. K., “Pre-Combustion Trace Element Reduction Using Advanced Physical Cleaning Circuit,” Proceedings, 20th International Pittsburgh Coal Conference, Pittsburgh, Pennsylvania, September 2003.
  43. Honaker, R. Q., Taulbee, D., Parekh, B. K. and Tao, D., “Premium Fuel Production from Coal And Timber Waste,” SME Annual Meeting, Denver, Colorado, Preprint No. 04-142, February 2004.
  44. Honaker, R. Q., Luttrell, G. H., and Lineberry, G. T., “Improved Mining Economics Using Near-Face Deshaling,” SME Annual Meeting, Denver, Colorado, Preprint No. 04-134, February 2004.
  45. Luttrell, G. H., Honaker, R. Q. and Yoon, R.-H., “Optimization of the Coal Fuel Supply Chain: A Preparation Plant Perspective,” Proceedings, 29th International Technical Conference on Coal Utilization & Fuel Systems, Clearwater, Florida, ISBN 0-932066029-54, April 2004.
  46. Parekh, B. K., Patil, D. P., Honaker, R. Q., Schoenbrunn, F. and Baczek, F., “Improving Densification of Fine Coal Refuse Slurries to Eliminate Slurry Impoundments,” Proceedings, 21st International Coal Preparation Conference, Lexington, Kentucky, pp. 213 – 224, May 2004.
  47. Honaker, R. Q., Luttrell, G. H. and Yoon, R.-H., “Upgrading of Carbonaceous Materials Using Selective Hydrophobic Coagulation,” in Particle Size Enlargement in Mineral Processing, ed., J. S. Laskowski, Canadian Institute of Mining, Metallurgy and Petroleum, Montreal, Quebec, ISBN 1-894475-52-6, pp. 89 – 104, 2004.
  48. Parekh, B. K., Patil, D. P., Honaker, R. Q., Schoenbrunn, F. and Baczek, F., “Improving Densification of Fine Coal Refuse Slurries to Eliminate Slurry Impoundments,” in Particle Size Enlargement in Mineral Processing (ed., J. S. Laskowski), Canadian Institute of Mining, Metallurgy and Petroleum, Montreal, Quebec, ISBN 1-894475-52-6, pp. 319 – 330, 2004.
  49. Honaker, R. Q., Das and M. Nombe, “Improving The Separation Efficiency of an EGS Technology Using Air Bubble Injection,” Proceedings, SME Annual Meeting, Salt Lake City, Utah, Preprint Number 05-96, 2005.
  50. Honaker, R. Q., A. Das, F. Boaten, G. H. Luttrell and R. H. Yoon, “Improved Ultrafine Classification Performance,” Proceedings, SME Annual Meeting, Salt Lake City, Utah, Preprint Number 05-127, 2005.
  51. Parekh, B. K., Patil, D. P. and Honaker, R., “Thickening of Fine Coal Refuse Slurry-An Alternative to Impoundment,” Proceedings, SME Annual Meeting, Salt Lake City, Utah, Preprint Number 05-, 2005.
  52. Tao, D. Honaker, R., Parekh, B. K., Zhao, C., Han, H., Blue, C. and Dahotre, N. B., “Advanced Surface Enhancement Technology for Decreasing Wear and Corrosion of Equipment Used for Mineral Processing,” Proceedings, SME Annual Meeting, Salt Lake City, Utah, Preprint Number 05-45, 2005.
  53. Honaker, R. Q., Taulbee, D., Parekh, B. K., and Patil, D., “Energy Recovery from Coal And Timber Waste,” Proceedings, 30th International Technical Conference on Coal Utilization & Fuel Systems, Clearwater, Florida, ISBN 0-932066-30-6, April 17 – 21, 2005, pp. 89 – 100.
  54. Parekh, B. K., Patil, D. and Honaker, R. Q., “Thickening of Fine Coal Refuse Slurry-An Alternative to Impoundments,” Proceedings, 30th International Technical Conference on Coal Utilization & Fuel Systems, Clearwater, Florida, ISBN 0-932066-30-6, April 17 – 21, 2005, pp. 101 – 105.
  55. Honaker, R. Q. and Patwardhan, A., “In-Plant Evaluation of Dense Medium Process Performances,” Proceedings, 22nd International Coal Preparation Conference, Lexington, Kentucky, pp. 183 – 198, May 2-5, 2005.
  56. Honaker, R. Q., Taulbee, D. Parekh, B. K. and Patil, D., “Premium Fuel Production from Coal and Timber Waste,” Proceedings, 22nd International Pittsburgh Coal Conference, September 12 – 15, 2005.
  57. Tao, D., Blue, C., Dahotre, N. B., Engleman, G., Zhao, C., Han, H., , Honaker, R. and Parekh, B. K. “Application of Laser Surface Coatings for Raw Coal Screen wear Resistance Enhancement,” Proceedings, 135th SME Annual Meeting, St. Louis, Missouri, Preprint Number 06-030, 2006.
  58. Komuench, J., Mankosa, M., Honaker, R. and Bratton, “Applications of the Crossflow Teeter-Bed Separator in the U. S. Coal Industry,” Proceedings, 135th SME Annual Meeting, St. Louis, Missouri, Preprint Number 06-042, 2006.
  59. Chen, G., Tao, D., Parekh, B. K. and Honaker, R. Q., “Flocculation Dewatering of Phosphatic Clay,” Proceedings, 135th SME Annual Meeting, St. Louis, Missouri, Preprint Number 06-029, 2006.
  60. Honaker, R. Q., “Education through Research at the University of Kentucky,” Coal Preparation Society of America Journal, Volume 4, No. 4, pp. 11 – 14, 2006.
  61. Honaker, R. Q., Boaten, F., Luttrell, G. H., Moorhead, R. and Coker, T., “Ultrafine Coal Classification using 6-inch gMax Cyclone Circuits,” Proceedings, 22nd International Coal Preparation Conference, Lexington, Kentucky, pp. 19 – 36, May 1-4, 2006.
  62. Honaker, R. Q., Luttrell, G. H., Bratton, R and. Patil, D., “Improving Mine Profitability Using Dry Deshaling Technologies,” CPSA Journal, Volume 5, Number 2, pp. 21 – 25, 2006.
  63. Honaker, R. Q., Luttrell, G. H., Bratton, R., and Patil, D., “Improving Mine Profitability Using Dry Deshaling Technologies,” Proceedings, 31st International Technical Conference on Coal Utilization & Fuel Systems, Clearwater, Florida, May 21 – 25, 2006.
  64. Honaker, R. Q., Jain, M., Parekh. B. K., and Saracoglu, M., “Optimized Spiral Separation Performance for Ultrafine Coal Cleaning,” Proceedings, 23rd International Minerals Processing Congress, Honaker, pp. 1150-1155, Promed Advertising Limited, Istanbul, Turkey, 2006.
  65. Tao, D., Fan, M., Honaker, R. Q. and Parekh, B.K., “Picobubble Enhanced Flotation of Coarse Phosphate Particles,” Proceedings, 23rd International Minerals Processing Congress, pp. 524-530, Promed Advertising Limited Istanbul, Turkey, September 4 – 8, 2006.
  66. Snoby, R., Honaker, R. Q. and Weinstein, R., “Dry Jigging Coal: Advantages and Limitations,” Proceedings, XV International Coal Preparation Congress, China University of Mining and Technology Press, Beijing, China, Vol. 2, pp. 448 – 456, 2006.
  67. Honaker, R. Q., Jain, M., Parrekh, B. K. and Saracoglu, M., “Optimized Spiral Separation Performance for Ultrafine Coal Cleaning,” Proceedings, XV International Coal Preparation Congress, China University of Mining and Technology Press, Beijing, China, Vol. 2, pp. 502 – 508, 2006.
  68. Parekh, B. K., Patil, D., Honaker, R. Q. and Baczek, F., “Improving the Densification of Fine Coal Refuse Slurries to Eliminate Slurry Ponds,” Proceedings, XV International Coal Preparation Congress, China University of Mining and Technology Press, Beijing, China, Vol. 2, pp. 549 – 554, 2006.
  69. Honaker, R. Q., Luttrell, G. H., Bratton, R., Saracoglu, M, Thompson E., and Richardson V., “Dry Coal Cleaning Using The FGX Separator,” Proceedings, 24th International Coal Preparation Conference, Lexington, Kentucky, pp. 19 – 36, April 30 – May 3, 2007, pp. 61 – 76.
  70. Honaker, R. Q., “Operational Considerations for Waste Minimization,” Coal Preparation Society of America Journal, Vol. 7, No. 1, pp. 21 – 26, 2008.
  71. Honaker, R. Q. and Bimpong, C., “Alternative Materials for Dense Medium Separations,” Proceedings, 25th International Coal Preparation Conference, Lexington, Kentucky, pp. 19 – 36, April 28– May 1, 2008, pp. 63 – 79.
  72. Honaker, R. Q., “Teetered-Bed Separators: An Effective Fine Coal Cleaning Tool,” Coal Preparation Society of America Journal, Vol. 7, No. 3, pp. 23 – 31, 2008.
  73. Luttrell, G. H., Kelles, S. and Honaker, R. Q., “Implications of Constant Incremental Quality on the Design of Fine Coal Dewatering Circuitry,” Proceedings, Society of Mining, Metallurgy and Exploration Annual Meeting, February 2009, Preprint 09-02.
  74. Honaker, R. Q., Hollis, R. W., Switzer, D., and Coker, T., “A New Development in Dense Medium Cyclones: Performance Evaluation and Benefit Analysis,” Proceedings, 26th Annual International Coal Preparation Conference, April 2009, pp. 221 – 228.
  75. Honaker, R. Q., Akram, Z., and Groppo, J., “Recovery and Utilization of Bottom Ash Magnetics for Coal Cleaning Medium,” Proceedings, 2009 SME Annual Meeting, Denver, Colorado, February, Preprint 09-002.
  76. Groppo, J. and Honaker, R. “Economic recovery of fly ash-derived magnetics and evaluation for coal cleaning,” World of Coal Ash: Science Applications and Sustainability, May 4-7, Lexington, KY, WOCA 2009 Proceedings, CD, 2009.
  77. Saracoglu, M. and Honaker, R.Q., “Dry Coal Cleaning Using the FGX Separator”, Session 29, Coal Science: Beneficiation-1, 27th International Pittsburgh Coal Conference, Istanbul, Turkey, October 13, 2010. (Proceedings pending in CD format).
  78. Saracoglu, M. and Honaker, R.Q., “Evaluating Chemical Needs in Coal Flotation”, Session 2, Proceedings of the 12th International Mineral Processing Symposium, Nevsehir, Turkey, October 6, 2010, pp. 901-910.
  79. Tao, D., Sobhy, A., Li, Q., and Honaker, R., “Pre-Combustion Cleaning of Pulverized Fine Coal at Power Plant Using Novel RTS Dry Separation Technology”, in Proceedings of 27th International Pittsburgh Coal Conference, Istanbul, Turkey, October 11-14, 2010.
  80. Tao, D., Chen+, , Parekh, B.K., Honaker, R., and Zhang P.,“Pilot-Scale Demonstration of Deep ConeTM Paste Thickening Process for Phosphatic Clay/Sand Disposal”, in Beneficiation of Phosphates – Technology Advance and Adoption, SME, pp. 81-94, 2010.
  81. Tao, D., Chen+, , Parekh, B.K., Honaker, R., and Zhang P., “Laboratory Studies on Flocculation of Phosphatic Clay and Sand/Clay Mixture as a Forerunner to Phosphate Tailings Disposal Using the Deep Cone Paste Technology, I: Screening of Anionic and Cationic Polymers”, in Beneficiation of Phosphates – Technology Advance and Adoption, SME, pp. 95-116, 2010.
  82. Tao, D., Chen+, , Parekh, B.K., Honaker, R., and Zhang P., “Laboratory Studies on Flocculation of Phosphatic Clay and Sand/Clay Mixture as a Forerunner to Phosphate Tailings Disposal Using the Deep Cone Paste Technology, II: Rheological Characterization”, in Beneficiation of Phosphates – Technology Advance and Adoption, SME, pp. 117-132, 2010.
  83. Honaker, R., Saracoglu, M., Kohmuench, J. and Mankosa, M. “Cavitation Pretreatment of a Flotation Feedstock For Enhanced Coal Recovery,” Proceedings, International Coal Preparation Conference, Lexington, Kentucky, May 2011.
  84. Duan, Z. and Honaker, R.Q.. “Chemical Stabilization of Fine Coal Waste as an Alternative to Slurry Impoundments,” Preprint:12-143, Annual SME Meeting, Seattle, Washington, February 2012.
  85. Fan, M., Tao, D., Zhao, Y., and Honaker, R., “Effect of Nanobubble on Different Particle Size Coal Flotation”, Preprint:12-102, Annual SME Meeting, Seattle, Washington, February 2012.
  86. Honaker, R. Q., H. Davis and R. Hollis. “Large Diameter DMC Performances in U.S. Preparation Plants.” Proceedings of the International Coal Preparation Conference and Exhibit, Lexington, Kentucky, April 28 – 30, 2014.
  87. Gupta, N., Bratton, R., Luttrell, G., Ghosh T. and Honaker, R. Q., “Upgrading Indian thermal Coals Using Air-Table Dry Deshaling, Proceedings: 31st Annual International Pittsburg Coal Conference, Pittsburg, PA, October 6-9, 2014.
  88. Luttrell, G.H., Bratton, R., and Honaker, R.Q., “Practical Optimization of Coal Preparation Plants,” Proceedings of the International Coal Preparation Conference, Lexington, Kentucky, April 25 – 17, 2015.
  89. Luttrell, G.H., Kiser, M.K., Yoon, R.-H., Bhagavatula, A., Rezaee, Honaker, R.Q., 2016 “Rare Earth Element Concentrations in Product Streams of Coal Preparation Plants in the Eastern United States” Proceedings, SME Annual Meeting, Phoenix, Preprint 16-144.
  90. Honaker, R., Groppo, J., Bhagavatula, A., Rezaee M. and Zhang, W., 2016, Recovery of Rare Earth Minerals and Elements from Coal and Coal Byproducts, International Coal Preparation Conference, Louisville, Kentucky, pp. 43 – 54.
  91. Luttrell, G.H., Kiser, M. J., Yoon, R.-H., Bhagavatula, A., Rezaee M. and Honaker, R. Q., 2016, “Concentrations of Rare Earth Elements Generated by U.S. Coal Preparation Plants,” Coal Preparation Conference, Louisville, Kentucky, pp. 35 – 41.
  92. Luttrell, G. H., Honaker, R. Q., and Noble, A., 2016, “Micro-Price Optimization of Sulfur-Constrained Plants with Application to Illinois Basin Coals,” Coal Preparation Conference, Louisville, Kentucky, pp. 107 – 116.
  93. Luttrell, G. H., Noble, A., Honaker, R.Q., and Yoon, R.-H., 2016, “Rare Earth Opportunities for Coal,” International Technical Conference on Clean Coal & Fuel Systems, Clearwater, Florida, June 5 – 9.
  94. Luttrell, G. H., Noble, A. and Honaker, R. Q., 2016, Coal Micro-Pricing: A Market Driven Perspective on Coal Production,” International Technical Conference on Clean Coal & Fuel Systems, Clearwater, Florida, June 5 – 9.
  95. Bethell, Peter, Chad M. Sechrist, Serhat Keles, Aaron Noble, Gerald H. Luttrell, and Rick Honaker. (2018). “Partitioning Behavior of Rare Earth Elements in a Coal Preparation Facility,” Proceedings, 43nd International Technical Conference on Clean Energy, Sheraton Sand Key, Clearwater, Florida, June 3-8, 2018, 8 pp, Preprint No. 112-2018.
  96. Sechrist, Chad M., Serhat Keles, Aaron Noble, Gerald H. Luttrell, Rick Q. Honaker. (2018). “Preconcentration of Coal-Based Rare Earth Element Feedstocks Using X-Ray Sorter Technology,” Proceedings, 43nd International Technical Conference on Clean Energy, Sheraton Sand Key, Clearwater, Florida, June 3-8, 2018, 8 pp, Preprint No. 113-2018.
  97. Addo, D., Werner, J., Threlkeld, D., Bratton, R. and Honaker, R., “Operation and Process Control Development for a Pilot-Scale Leaching and Solvent Extraction Circuit Recovering Rare Earth Elements from Coal-Based Sources,” Proceedings, 2019 SME Annual Meeting, Denver, Colorado, Preprint No. 19-155.
     

Books & Patents

Books

  1. Honaker, R. Q. and Forrest, W. R., editors, Advances in Gravity Concentration, Society of Mining, Metallurgy and Exploration, Inc., Littleton, Colorado, ISBN 0-87335-227-0., 2003.
  2. Honaker, R. Q., editor, XVI International Coal Preparation Congress 2010 Proceedings, Society of Mining, Metallurgy and Exploration, Inc., Littleton, Colorado, ISBN 978-0-87335-330-4, pp. 1 – 978, 2010.

Articles in Reference Books

  1. Honaker, R. Q., Chugh, Y. P., and Yoon, R.-H., (Editors), High Efficiency Fine Coal Preparation, Proceedings, Meeting Sponsored by the U. S. Department of Energy and the Illinois Clean Coal Institute, Mt. Vernon, Illinois,  August, 1992.
  2. Onal, G., Celik, M. S., and Honaker, R. Q., “Coal Preparation” in Coal (ed., Orhan Kural) Library Congress ISBN 975-95701-1-4, Chapter 17, pp. 223 – 238, 1994.
  3. Luttrell, G.H. and Honaker, R.Q. “Coal Preparation”, Encyclopedia of Sustainability Science and Technology, Springer, New York, 2012.
  4. Honaker, R.Q., Kohmuench, J. and Luttrell, G.H., “Cleaning of Fine and Ultrafine Coal,” The Coal Handbook: Towards Cleaner Production, (Editor: David Osborne) Woodhead Publishing, Philadelphia, Chapter 11, pp. 301 – 346,  2013.
  5. Mankosa, M. J., Kohmuench, J. N. and Honaker, R. Q. “Fluidized-Bed Classifiers”, SME Mineral Processing & Extractive Metallurgy Handbook (editors: Robert C. Dunne Editors: S. Komar Kawatra & Courtney A. Young), Society for Mining, Metallurgy and Exploration, Colorado, Chapter 6.3, pp. 611 – 623, 2019.
  6. Dunne, R. C., Honaker, R.Q and Giblett, A. “Gravity Concentration”, SME Mineral Processing & Extractive Metallurgy Handbook (editors: Robert C. Dunne Editors: S. Komar Kawatra & Courtney A. Young), Society for Mining, Metallurgy and Exploration, Colorado, Chapter 6.2, pp. 787 – 814, 2019.
  7. Dunne, R. C., Honaker, R.Q and Popplewell, G. “Dense Medium Separation”, SME Mineral Processing & Extractive Metallurgy Handbook (editors: Robert C. Dunne Editors: S. Komar Kawatra & Courtney A. Young), Society for Mining, Metallurgy and Exploration, Colorado, Chapter 6.3, pp. 815 – 838, 2019.
  8. Luttrell, G.H. Noble, A. and Honaker, R.Q. “Coal Preparation”, SME Mineral Processing & Extractive Metallurgy Handbook (editors: Robert C. Dunne Editors: S. Komar Kawatra & Courtney A. Young), Society for Mining, Metallurgy and Exploration, Colorado, Chapter 12.6, pp. 1595 – 1613, 2019.
  9. Honaker, R. Q., Noble, A. and Luttrell, G.H., 2019. “Applications for X-Ray Transmission Sorters in Coarse Coal Upgrading,” Challenges and Opportunities in Coal Preparation, Society of Mining, Metallurgy and Exploration, Colorado.
  10. Honaker, R. Q., Kohmuench, J., Dohm, E. and Luttrell, G.H., 2023. “Cleaning of Fine and Ultrafine Coal,” The Coal Handbook, Volume 1: Towards Cleaner Coal Supply Chains (ed.: Dave Osborne), Elsevier, Chapter 13, ISBN: 9780128243282.
     

Patents

  1. Albert C. Tsang, Max W. Thompson and Rick Quay Honaker, Methods and systems for treating a gasification slag product, US Patent 9,074,149 B2; Canadian Patent 2 746 195, July 7, 2015.
  2. Zhang, W. and Honaker, R.Q., A Low-Cost Selective Precipitation Circuit for Recovery of Rare Earth Elements from Acid Leachate of Coal Waste, U.S. Utility Patent No. 11155897, Issued: October 26, 2021.
  3. Honaker, R.Q. and Yang, X., Low-Temperature Plasma Treatment for Enhanced Recovery of Highly Valued Critical Rare Earth Elements from Coal, U.S. Provisional Patent Application Serial No. 62/643,938, March 16, 2018.
  4. Zhang, W. and Honaker, R. Q., High Temperature Oxidation as a Pretreatment Process to Rare Earth Recovery from Precombustion Coal-Based Sources, U.S. Provisional Patent Application Serial No. 62/827,361, April 1, 2019.
  5. Honaker, R. Q. and Zhang, W., Enhanced Recovery of Critical Materials from Coal-Based Sources Using Fluidized-Bed Combustion, U.S. Provisional Patent Application Serial No. 62/835,105, April 17, 2019.
  6. Werner, J., Chandra, A. and Honaker, R.Q., Continuous Solvent Extraction Process for Generation of High Grade Rare Earth Oxides from Leachates Generated from Coal Sources, U.S. Patent No. 11,186,895 B2, November 11, 2021.
  7. Roos, C. E., Sommer, E.J., Honaker, R.Q., and Noble, A., Concentrating Rare Earth Elements from Coal Waste, U.S. Patent No. 11,123,772 B2, September 21, 2021.
  8. Honaker, R.Q., Zhang, W., and Qi, L., Methods for Recovering Critical Elements from Leach Solutions, U.S. Application No. 2024/0344170 A1, October 17, 2024.
     

News and Recognition

Rick Honaker with 3 students

UKNOW | Feb. 22, 2023

UK researchers are leaders in recovering materials that power our world

Rick Honaker

UK Research Feature | Nov 12, 2018

VIDEO: Pilot-Scale Plant to Extract Rare Earth Elements in Heart of Coal Country

Stanley and Karen Pigman College of Engineering

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