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Rare Metals

, Volume 36, Issue 3, pp 220–228 | Cite as

Coupling relationship between multicomponent recovery of rare earth tailings

  • Yue Zhang
  • Hai Lin
  • Ying-Bo Dong
  • Xiao-Fang Xu
  • Xin Wang
  • Yue-Jiao Gao
Article
  • 194 Downloads

Abstract

About 90 % rare earth minerals and many other valuable minerals are heaped as iron tailings without comprehensive utilization. In order to comprehensively recover these valuable minerals, in a view of the valuable ore type of Baotou Steel tailing and embedded features, valuable components flow and their respective recovery coupling relationship in beneficiation flowsheet were analyzed; process flows and parameters which could give consideration to four kinds of components were determined. TFe, rare earth oxide (REO), niobium and fluorite recoveries could reach 72.70 %, 81.84 %, 78.58 % and 60.18 % in low-intensity/high-intensity magnetic separation, respectively. High-intensity magnetic concentration was treated by REO direct flotation; the recovery is 75.43 %, on the base of which Fe could be separated completely from Nb. The underflow was treated by reduction roasting–low-intensity magnetic separation. And the relationship between the recoveries of these valuable components was also discussed.

Keywords

Rare earth tailings Recovery Coupling relationship 

Notes

Acknowledgments

This study was financially supported by the National High Technology Research and Development Program of China (No. 2012AA062402).

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Copyright information

© The Nonferrous Metals Society of China and Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  • Yue Zhang
    • 1
    • 2
  • Hai Lin
    • 1
    • 2
  • Ying-Bo Dong
    • 1
    • 2
  • Xiao-Fang Xu
    • 1
    • 2
  • Xin Wang
    • 1
    • 2
  • Yue-Jiao Gao
    • 1
    • 2
  1. 1.School of Civil and Environmental EngineeringUniversity of Science and Technology BeijingBeijingChina
  2. 2.Key Laboratory of High-Efficient Mining and Safety of Metal Mines, Ministry of EducationUniversity of Science and Technology BeijingBeijingChina

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