Журналы →  Obogashchenie Rud →  2020 →  №6 →  Назад

Название Rare-earth metal ore processing technologies when developing new deposits
DOI 10.17580/or.2020.06.08
Автор Yushina T. I., Petrov I. M., Cherny S. A., Petrova A. I.
Информация об авторе

NUST MISIS (Moscow, Russia):

Yushina T. I., Head of Chair, Candidate of Engineering Sciences, Associate Professor, yuti62@mail.ru


INFOMINE Research Group (Moscow, Russia):
Petrov I. M., General Director, Doctor of Engineering Sciences


Berezniki Branch of PNRPU (Berezniki, Russia):
Cherny S. A., Head of Chair, Candidate of Economic Sciences, Associate Professor


Research Institute of Comprehensive Exploitation of Mineral Resources of RAS (IPKON) (Moscow, Russia):
Petrova A. I., Postgraduate


The article provides a brief overview of processing technologies for rare-earth raw materials used under greenfield development projects in different countries of the world (Africa, Greenland, Australia, Canada). The projects feature deposits with different mineral compositions, mass fractions of rare-earth metals (REM) in ores of 0.2 to 15 %, and the presence of niobium, zirconium, tantalum, phosphorus, uranium, and thorium. The resulting production facilities will extract 180 kt to 7.2 Mt rare-earth ore annually to generate 1.5 to 20 kt oxides of heavy and light groups of rare-earth metals along with the rare metals. The analysis of technologies for the projects considered demonstrates that magnetic and radiometric separation, dense-medium concentration and flotation with hydrometallurgical processing in the form of leaching with sulfuric or hydrochloric acid, followed by extraction of the target products, will be used for the processing of rare-earth raw materials. A characteristic feature of a number of projects is, first of all, the direct hydrometallurgical processing of the feed. The concentration technologies for ores containing rare-earth metals also indicate a clear trend towards a more active use of high-intensity magnetic separation. The main products to be obtained with these technologies will include composite concentrates of oxides or carbonates of rare-earth metals. At the same time, the commissioning dates for the projects are being repeatedly postponed; the implementation of many projects remains uncertain, which is largely due to the stagnant dynamics of global prices for rare-earth metals.

Ключевые слова Rare-earth metals (REM), ores, processing, process flows, bastnesite, monazite, flotation, high-intensity magnetic separation, hydrometallurgical processing
Библиографический список

1. Yushina T. I., Petrov I. M., Grishaev S. I., Chernyi S. A. International rare earth metals market and processing technologies: State-of-the-art and future prospects. Gornyi Zhurnal. 2015. No. 2. pp. 59–64. DOI: 10.17580/gzh.2015.02.11.
2. Yushina T. I., Petrov I. M., Grishaev S. I., Chernyi S. A. International rare earth metals market and processing technologies: State-of-the-art and future prospects (Part 2). Gornyi Zhurnal. 2015. No. 3. pp. 76–81. DOI: 10.17580/gzh.2015.03.12.
3. Kvanefjeld prefeasibility study confirms a long-life, cost competitive rare earth element-uranium project. URL: https://www.openbriefing.com/AsxDownload.aspx?pdfUrl=Report%2FComNews%2F20120504%2F01294548.pdf (accessed: 03.12.2020).
4. Greenland Minerals and Energy Ltd.: Annual general meeting presentation. May 2014. URL: https://investorintel.com/markets/technology-metals/technology-metals-news/greenland-minerals-energy-limited-annual-general-meetingpresentation/ (accessed: 03.12.2020).
5. Tanbreez Mining Greenland. URL: http://tanbreez.com/ (accessed: 04.12.2020).
6. Frontier rare earths provides an update on its Zandkopsdrift rare earth element in South Africa. URL: https://www.mining.com/frontier-rare-earths-provides-an-updateon-its-zandkopsdrift-rare-earth-elementpproject-in-southafrica/ (accessed: 04.12.2020).
7. NI 43-101. Independent technical report on the results of a feasibility study for the Steenkampskraal REE project in the Western Cape, South Africa. For Great Western Minerals Group. June 2014. URL: https://www.sedar.com/DisplayCompanyDocuments.do?lang=EN&issuerNo=00007501 (accessed: 04.12.2020).
8. Montero Mining and Exploration. URL: https://monteromining.com/projects/other-projects-wigu-hill/ (accessed: 07.12.2020).
9. Peak Resources. URL: www.peakresources.com.au (accessed: 07.12.2020).
10. Arafura Resources Ltd. URL: https://www.arultd.com/projects/nolans.html (accessed: 07.12.2020).
11. Alkane Resources. Dubbo zirconia project. 2013. URL: https://investors.alkane.com.au/site/PDF/84b4b014-b058-49f6-a53a-ab33916fded8/DubboZirconiaProjectdbAccessAustraliaFutureMetalsCorporateDay (accessed: 08.12.2020).
12. Dubbo zirconia project, Australia. Pilot plant to production. URL: http://member.afraccess.com/media?id=CMN://6A686750&filename=20140804/ALK_01539727.pdf (accessed: 08.12.2020).
13. Hastings Rare Metals. URL: https://hastingstechmetals.com/investor-relations/research-reports/ (accessed: 08.12.2020).
14. RM Research. Hastings Rare Metals Ltd. URL: http://www.rmresearch.com.au/wp-content/uploads/RMResearch_HAS_20121017-v2.pdf (accessed: 09.12.2020).
15. Northern Minerals URL: https://northernminerals.com.au/browns-range/resource-and-exploration/ (accessed: 11.12.2020).
16. Avalon Rare Metals Inc. Technical report disclosing the results of the feasibility study on the Nechalacho rare earth elements project. 31 May 2013. URL: http://avalonadvancedmaterials.com/_resources/projects/may_2013_ni43_report.pdf (accessed: 11.12.2020).
17. Geomega Resources. URL: https://geomega.ca/montviel-ree-nb/ (accessed: 15.12.2020).
18. Quest Rare Minerals Ltd. URL: https://www.sedar.com/DisplayCompanyDocuments.do?lang=EN&issuerNo=00026016 (accessed: 14.12.2020).
19. The rare earth elements industry in Canada — summary of evidence. June 2014. URL: https://www.ourcommons.ca/Content/Committee/412/RNNR/WebDoc/WD6669744/412_RNNR_reldoc_PDF/RareEarth Elements-Summary-e.pdf (accessed: 14.12.2020).
20. Dunn B. M. Form 43–101 mineral resource report on the Hoidas Lake rare earth project, Northern Mining district, Saskatchewan, prepared for Great Western Minerals Group Ltd. Minneapolis: Barr Engineering Company, 2009. 730 p.
21. Dunn B. M. N143-101 Technical report «Update to resource estimate on the Hoidas Lake property, Saskatchewan Canada». Barr Engineering Company, 2014. 121 p. URL: https://digigeodatareports.b-cdn.net/36.pdf (accessed: 15.12.2020).

Language of full-text русский
Полный текст статьи Получить