№81-2
Current state and prospects of additional extraction of rare metals and rare earth elements in coal deposits
V. Bondarenko1, I. Kovalevska1, O. Kravchenko1, I. Movchan1
1Dnipro University of Technology, Dnipro, Ukraine
Coll.res.pap.nat.min.univ. 2025, 81:18–27
Full text (PDF)
https://doi.org/10.33271/crpnmu/81.018
ABSTRACT
Purpose. To determine the status and prospects of associated rare earth elements extraction in coal deposits of Western Donbas
Methods. The study was based on a comprehensive analysis of geological and economic data on Western Donbas, literature sources, and statistics on the distribution of rare and rare metals earth elements (REEs) in coal seams. Particular attention is paid to the petrographic composition of coal, depths of occurrence, germanium content in ash and technogenic waste.
Findings. The article analyzes the mining and geological conditions of rare earth elements occurrence in the coal seams of the Western Donbas. It is established that the associated extraction of REE from coal raw materials is technologically possible and expedient. The potential of the REE resource base of the world and Ukraine is estimated. Schemes of REE distribution in coal seams of different thicknesses and roof rocks have been developed, and priority zones for the extraction of mineral raw materials have been identified. The geochemical patterns of germanium distribution in coal seams of the Dniprovska mine (Western Donbas) were analyzed separately. The results of three independent studies analyzing the correlations between Ge content and ash content, seam thickness, and content of associated elements are summarized, which allowed us to propose separate mining of coal and mineral raw materials with an increased REE concentration.
Originality. The regularities of distribution of rare earth elements along the thickness of the coal seam and its roof, in particular germanium – Ge, which is concentrated in the roof and at the contact of the coal seam, have been established. A zone of increased REE concentration in the range of 0.15–0.2 m was identified. The direction of substantiation of rational systems for the preparation and development of coal seams, taking into account the associated production of REE, has been established.
Practical significance. It is proposed to use the associated REE production in the planning of mining operations. It is recommended to use the study to extend the operation of mines during the post-mining period or the life of mines approaching closure.
Keywords: rare earth elements, germanium, Western Donbas, associated mining, coal deposits, strategic raw materials, mineral raw materials germanium, geochemistry, coal, cobalt, vanadium, ash content, correlation.
References
1. Tse, Pui-Kwan, (2011). China’s rare-earth industry: U.S. Geological Survey Open-File Report 2011–1042.http://pubs.usgs.gov/of/2011/1042/
2. Chen, W.-Q., Eckelman, M. J., Sprecher, B., Chen, W., & Wang, P. (2024). Interdependence in rare earth element supply between China and the United States helps stabilize global supply chains. One Earth, 7(2), 242–252. https://doi.org/10.1016/j.oneear.2024.01.011
3. United States Geological Survey.(2019). Mineral Commodity Summaries 2019. U.S. Geological Survey.
4. Indian Minerals Yearbook 2019 (Part- III : Mineral reviews) 58th Edition Rare earths (advance release) Government of India ministry of mines indian bureau of mines Indira Bhavan, Civil Lines, NAGPUR – 440 001
5. Hrinchenko, O.V., Kurylo, M. V., & Mykhailov, V.A. (2006). Metalichni korysni kopalyny Ukrainy: Pidruchnyk. Vydavnycho-polihrafichnyi tsentr “Kyivskyi universytet”.
6. Donetskyi vuhilnyi basein (Donbas) (2004). Hirnychyi entsyklopedychnyi slovnyk : u 3 t, 3, 584–585.
7. Ishkov, V., Kozii, Y., Chernobuk, O., Pashchenko, P., Kozar, M., & Dreshpak, O. (2024). Spatial distribution of germanium in coal seam с7н of the Pavlohradska mine field. Collection of Research Papers of the National Mining University, 158–172. https://doi.org/10.33271/crpnmu/76.158
8. Hower, J. C., Fu, B., & Dai, S. (2020). Geochemical partitioning from pulverized coal to fly ash and bottom ash. Fuel, 279, 118542. https://doi.org/10.1016/j.fuel.2020.118542
9. Maity, S., Choudhary, A. K. S., Kumar, S., & Gupta, P. K. (2022). Partitioning of Rare Earth Elements (REEs) from Coal to Coal Fly Ash in Different Thermal Power Stations (TPSs) of India. Journal of the Geological Society of India, 98(4), 460–466. https://doi.org/10.1007/s12594-022-2002-5
10. Li, Z., Li, X., Zhang, L., Li, S., Chen, J., Feng, X., Zhao, D., Wang, Q., Gao, Z., & Xiong, B. (2020). Partitioning of rare earth elements and yttrium (REY) in five coal-fired power plants in Guizhou, Southwest China. Journal of Rare Earths, 38(11), 1257–1264. https://doi.org/10.1016/j.jre.2019.12.013
11. Bartoňová, L., Serenčíšová, J., & Čech, B. (2018). Yttrium partitioning and associations in coal-combustion ashes prior to and after their leaching in HCl. Fuel Processing Technology, 173, 205–215. https://doi.org/10.1016/j.fuproc.2018.01.011
12. Hood, M. M., Taggart, R. K., Smith, R. C., Hsu-Kim, H., Henke, K. R., Graham, U., Groppo, J. G., Unrine, J. M., & Hower, J. C. (2017). Rare Earth Element Distribution in Fly Ash Derived from the Fire Clay Coal, Kentucky. Coal Combustion and Gasification Products, 9(1), 22–33. https://doi.org/10.4177/ccgp-d-17-00002.1
13. Hower, J. C., Dai, S., Seredin, V. V., Zhao, L., Kostova, I. J., Silva, L. F., ... & Gurdal, G. (2013). A note on the occurrence of yttrium and rare earth elements in coal combustion products. Coal Combustion and Gasification Products, 5(2), 39–47.
14. Wu, G. Q., Wang, T., Zhang, Y. S., Wang, J. W., & Pan, W. P. (2020). Study on the enrichment of rare earth elements between coals and their by-products at coal-fired power plants. Proc CSEE, 40(6), 1963–1971.
15. Mineralni resursy Ukrainy. (n.d.). http://minerals-ua.info/mapviewer/metali.php
16. Ishkov, V. V., & Kozii, Ye. S. (2022). Koreliatsiino-rehresiinyi analiz vmistu hermaniiu z potuzhnistiu ta zolnistiu vuhilnoho plasta s8n shakhty «Dniprovska». Vid mineralohii i heohnozii do heokhimii, petrolohii, heolohii ta heofizyky: fundamentalni i prykladni trendy KhKhI stolittia (MinGeoIntegration XXI): zbirnyk prats Vseukrainskoi konferentsii, 28-30 veresnia 2022 roku. 129–134. http://ir.nmu.org.ua/handle/123456789/161812
17. Kozii, Ye. S., Ishkov, V. V., & Chernobuk, O. I. (2023). Peculiarities of relationship between cobalt and germanium concentrations in coal seam с₈н of dniprovska mine of Western Donbas. Mining Geology & Geoecology, 1(4), 16–23. https://doi.org/10.59911/mgg.2786-7994.2022.1(4).273779
18. Ishkov, V. V., Kozii, Ye. S., & Chernobuk, O. I. (2022). Analysis of the relationship of vanadium and germanium concentrations in the c10b coal bed of the dneprovskaya mine in Western Donbas. Mining Geology & Geoecology, 2(5), 19–26. https://doi.org/10.59911/mgg.2786-7994.2022.2(5).276073
