Leaching of rare earth elements from bastnasite ore (third part)

  • Srećko R. Stopić RWTH Aachen University, Faculty for Georesourcen and Materials Engineering, IME Process Metallurgy and Metal Recycling, Aachen
  • Bernd G. Friedrich RWTH Aachen University, Faculty for Georesourcen and Materials Engineering, IME Process Metallurgy and Metal Recycling, Aachen
DOI: https://doi.org/10.5937/vojtehg67-21153
Keywords: rare earth elements, smelting, leaching, acid,

Abstract


Sulfuric acid dissolution of rare earth elements from bastnasite ore was studied after reductive smelting with carbon as a reducing agent at 1600°C. The two-step strategy: 1.carbothermic reduction, and 2.dissolution  with sulfuric acid at 70°C was applied under atmospheric pressure aiming at an increased selective extraction of rare earth elements from slag containing rare earth elements.

Author Biography

Srećko R. Stopić, RWTH Aachen University, Faculty for Georesourcen and Materials Engineering, IME Process Metallurgy and Metal Recycling, Aachen

Dr.-Ing. tehnickih nauka

Metalurgija, naucni saradnik

References

Castor, S.B., & Hedrick, J.B. 2006. Rare Earth Elements. In: Kogel, J.E., Trivedi, N.C., Barker, J.M., & Krukowski, S.T. Industrial Minerals and Rocks: Commodities, Markets, and Uses, 7th edition. SME. P.1568.

Ding, Y., Xue, Q., Wang, G., & Wang, J. 2013. Recovery Behavior of Rare Earth from Bayan Obo Complex Iron Ore. Metallurgical and Materials Transaction B, 44(1) pp.28-36. Available at: https://doi.org/10.1007/s11663-012-9762-z.

Feng, X., Long, Z., Cui, D., Wang, L., Huang, X., & Zhang, G. 2013. Kinetics of rare earth leaching from roasted ore of bastnaesite with sulfuric acid. Transactions of Nonferrous Metals Society of China, 23(3), pp.849-854. Available at: https://doi.org/10.1016/s1003-6326(13)62538-8.

Gupta, C.K., & Krishnamurthy, N. 2005. Extractive Metallurgy of Rare Earths. Boca Raton, Fl: CRC Press. chapter 1.2; ISBN 0415333407 9780415333405.

Shi, W.G., Zhu, G., Hua, J, Xu., S., & Chi, R. 2003. Recovery of RE from Baotou rare earth concentrate with chlorination roasting. Transaction of Nonferrous Metals Society China, 13 (2) pp.438-442.

Stopić, S., & Friedrich, B, 2018. Leaching of rare earth elements with sulfuric acid from bastnasite ores. Vojnotehnički glasnik/Military Technical Courier, 66(4), pp.757-770. Available at: https://doi.org/10.5937/vojtehg66-17177.

Stopić, S., & Friedrich, B. 2019. Leaching of rare earth elements with sulfuric acid from bastnasite ores - second part. Vojnotehnički glasnik/Military Technical Courier, 67(2), pp.241-254. Available at: https://doi.org/10.5937/vojtehg67-20103.

Zhang, L., Wang, Z., Tong, S., Lei, P., & Zou, W. 2004. Rare earth extraction from bastnasite concentrate by stepwise carbochlorination-chemical wapor transport-oxidation. Metallurgical and Materials Transaction B, 35(2), pp.217-221. Available at: https://doi.org/10.1007/s11663-004-0023-7.

Published
2019/06/12
Issue
Vol. 67 No. 3 (2019): July – September
Section
Original Scientific Papers

Proposed Creative Commons Copyright Notices

Proposed Policy for Military Technical Courier (Journals That Offer Open Access)

Authors who publish with this journal agree to the following terms:
Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.

  1. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
  2. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).