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Mineral Processing of Rare Earth Ores

  • Surya Kanta Das
  • Shivakumar I. AngadiEmail author
  • Tonmoy Kundu
  • Suddhasatwa Basu
Chapter
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Abstract

Demand for rare earth metals is increasing day by day in various high-tech applications such as super magnets, fluid cracking catalysts, nickel-metal-hydride (NiMH) batteries, and ordinance industries as well as in some defense applications. The rare earth metals are extracted from different REE-bearing minerals that occur in carbonatites, pegmatites, and placer deposits. About 95% of the world’s rare earth production comes from bastnaesite, monazite, and xenotime minerals. In many instances, rare earth minerals are found in association with various gangue minerals. The recovery of rare earth values from the lean-grade ores requires several stages of mineral beneficiation and hydrometallurgical unit operations. The mineral beneficiation techniques such as gravity concentration, magnetic separation, electrostatic separation, and flotation were employed for the recovery of rare earth minerals. The present chapter highlights the world distribution of rare earth deposits, occurrences, processing methodologies, and plant practices of few economic minerals.

Keywords

Rare earth minerals Bastnaesite Monazite Xenotime Beneficiation Gravity concentration Magnetic separation Flotation Chemical processing Plant practices 

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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • Surya Kanta Das
    • 1
  • Shivakumar I. Angadi
    • 1
    Email author
  • Tonmoy Kundu
    • 1
  • Suddhasatwa Basu
    • 1
  1. 1.CSIR-Institute of Minerals and Materials TechnologyBhubaneswarIndia

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