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Processing of phosphodihydrate to separate rare-earth elements and obtain gypsum free from phosphates and fluorides

  • E. P. Lokshin
  • O. A. Tareeva
  • I. P. Elizarova
Inorganic Synthesis and Industrial Inorganic Chemistry

Abstract

Geotechnological complex processing of phosphodihydrate, including sulfuric acid leaching, sorption extraction of rare-earth elements, recovery of leaching solutions to obtain rare-earth products and gypsum material, which in the radioactivity and concentration of impurity fluorides and phosphates is suitable for use in building and cement industries, is outlined.

Keywords

Thorium Sulfuric Acid Solution Nitric Acid Solution Phosphogypsum Cement Industry 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Pleiades Publishing, Ltd. 2011

Authors and Affiliations

  • E. P. Lokshin
    • 1
  • O. A. Tareeva
    • 1
  • I. P. Elizarova
    • 1
  1. 1.Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral ResourcesKola Scientific CenterApatity, Murmansk oblastRussia

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