Article metrics

  • citations in SCindeks: 0
  • citations in CrossRef:0
  • citations in Google Scholar:[=>]
  • visits in previous 30 days:5
  • full-text downloads in 30 days:4
article: 3 from 7  
Back back to result list
Vojnotehnički glasnik
2019, vol. 67, iss. 3, pp. 561-572
article language: English
document type: Original Scientific Paper
published on: 12/07/2019
doi: 10.5937/vojtehg67-21153
Creative Commons License 4.0
Leaching of rare earth elements from bastnasite ore (third part)
RWTH Aachen University, IME Process Metallurgy and Metal Recycling, Aachen, Federal Republic of Germany

e-mail: sstopic@ime-aachen.de, bfriedrich@ime-aachen.de

Project

The research leading to these results has received funding from the European Community's Seventh Framework Programme (Call identifier FP7-NMP-2012-LARGE-6) under grant agreement n°309373

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.

Keywords

References

Castor, S.B., Hedrick, J.B. (2006) Rare earth elements. in: Kogel J.E., Trivedi N.C., Barker J.M., Krukowski S.T. [ed.] 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
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), 849-854
Gupta, C.K., Krishnamurthy, N. (2005) Extractive metallurgy of rare earths. Boca Raton, FL: CRC Press, chapter 1.2
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.R., Friedrich, B.G. (2018) Leaching of rare earth elements with sulfuric acid from bastnasite ores. Vojnotehnički glasnik, vol. 66, br. 4, str. 757-770
Stopić, S.R., Friedrich, B.G. (2019) Leaching of rare earth elements from bastnasite ore: Second part. Vojnotehnički glasnik, vol. 67, br. 2, str. 241-254
Zhang, L., Wang, Z., Tong, S., Lei, P., Zou, W. (2004) Rare earth extraction from bastnaesite concentrate by stepwise carbochlorination-chemical vapor transport-oxidation. Metallurgical and Materials Transactions B, 35(2), 217-221