Characteristics of rare-earth elements extraction from tholeiitic basalt by hydrochloric acid-nitric acid mixture Polymorphic effect of sesquioxides of lanthanides

  • Akimasa MAsuDA''t
  • Published 2006

Abstract

The interesting features that rare-earth elements (REE) exhibit in HCl-HN03 acid extraction from powdered tholeiitic basalt are reported here. Cerium which can be oxidized to tetravalent shows the highest extraction percentage. The lower extractability of Eu compared with Sm and Gd is attributed to the high chemical resistance of feldspar in which divalent… (More)

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@inproceedings{MAsuDAt2006CharacteristicsOR, title={Characteristics of rare-earth elements extraction from tholeiitic basalt by hydrochloric acid-nitric acid mixture Polymorphic effect of sesquioxides of lanthanides}, author={Akimasa MAsuDA''t}, year={2006} }