Personal profile
Courses Taught
Minerals Processing MNG 301
Power Generation Technologies EGR/CME/MNG 542
Professional Development for Mining Engineers MNG 371
Conflict Minerals: Global Demand and Sustainability EGR/MNG 260
Applied Surface Chemistry MNG 585
Education/Academic qualification
Doctor of Philosophy, University Of Kentucky
1992
Master of Science in Mining Engineering, Virginia Polytechnic Institute and State University (Virginia Tech)
1982
Bachelor of Science in Mining Engineering, Virginia Polytechnic Institute and State University (Virginia Tech)
1979
Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
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SDG 7 Affordable and Clean Energy -
SDG 12 Responsible Consumption and Production -
SDG 13 Climate Action
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Collaborations and top research areas from the last five years
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DARPA Environmental Microbes as a Bioengineering Resource (EMBER) Program - Phase III
Honaker, R. (PI) & Groppo, J. (CoI)
Lawrence Livermore National Laboratory
3/18/26 → 9/30/26
Project: Research project
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Bipartisan Infrastructure Law - BIL - Development of a Strategic Materials Production System for Rare Earth Metals, Graphite and Other Critical Mater - CAER Graphite SOW
Honaker, R. (PI), Groppo, J. (CoI), Ji, B. (CoI) & Weisenberger, M. (CoI)
9/1/24 → 8/31/27
Project: Research project
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Bipartisan Infrastructure Law - BIL - Development of a Strategic Materials Production System for Rare Earth Metals, Graphite and Other Critical Mater
Honaker, R. (PI), Groppo, J. (CoI), Ji, B. (CoI) & Weisenberger, M. (CoI)
9/1/24 → 8/31/27
Project: Research project
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Development of a Carbon-Negative Process for Comminution Energy Reduction and Energy-Relevant Mineral Extraction through Carbon Mineralization and Biological C Fixation
Honaker, R. (PI) & Groppo, J. (CoI)
3/9/23 → 9/8/26
Project: Research project
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Multi-Scale Densification of Electrochemically Aligned Fibers for Ultra-High Strength Compisites from Waste Cellulose
Groppo, J. (PI)
10/1/24 → 3/23/26
Project: Research project
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Addendum: Electron microbeam investigations of the spent ash from the pilot-scale acid extraction of rare earth elements from a beneficiated Kentucky fly ash (2025, Int. J. Coal Geol. 303, 104738): Further consideration of particle-size reduction from feed to processed fly ash
Berti, D., Oberlink, A. E., Groppo, J. G., Joshi, P., Preda, D. V., Gamliel, D. P., Beers, T., Schrock, M., Hopps, S. D., Morgan, T. D., Zechmann, B. & Hower, J. C., Feb 28 2026, In: International Journal of Coal Geology. 316, 104962.Research output: Contribution to journal › Article › peer-review
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Electron microbeam investigations of the spent ash from the pilot-scale acid extraction of rare earth elements from a beneficiated Kentucky fly ash
Berti, D., Groppo, J. G., Joshi, P., Preda, D. V., Gamliel, D. P., Beers, T., Schrock, M., Hopps, S. D., Morgan, T. D., Zechmann, B. & Hower, J. C., Apr 17 2025, In: International Journal of Coal Geology. 303, 104738.Research output: Contribution to journal › Article › peer-review
Open Access10 Scopus citations -
Probing the Critical Element Chemistry of Coal-Combustion Fly Ash: Examination of Zircon and Associated Minerals from a Beneficiated Kentucky Fly Ash
Berti, D., Groppo, J. G., Joshi, P., Preda, D. V., Gamliel, D. P., Beers, T., Schrock, M., Hopps, S. D., Morgan, T. D., Zechmann, B. & Hower, J. C., May 2025, In: Minerals. 15, 5, 461.Research output: Contribution to journal › Article › peer-review
Open Access2 Scopus citations -
Evaluation of rare earth elements (REEs) in selected Nigerian coal fly ash: a prelude to extraction and waste management
Ojonimi, T. I., Pesonen, J., Asuke, F., Mohammed, R. A., Okeme, I. & Groppo, J., Dec 20 2024, In: Environmental Science: Advances. 4, 2, p. 318-326 9 p.Research output: Contribution to journal › Article › peer-review
Open Access5 Scopus citations -
Production of Critical Minerals from Coal Ash
Gamliel, D., Preda, D., Joshi, P. B., Sharkey, B., Hernandez, E., Skovran, N., Hower, J. C., Groppo, J. G., Beers, T., Schrock, M., Perrine, B., Yeboah, N., Flowers, R., Powell, S. & Hogan, J., 2024, IMPC 2024 - 31st IMPC-International Mineral Processing Congress. p. 1286-1295 10 p. (IMPC 2024 - 31st IMPC-International Mineral Processing Congress).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review
1 Scopus citations