Activation of leaching of rare earth elements from phosphohemihydrate

Activation of leaching of rare earth elements from phosphohemihydrate Treatment of fresh phosphohemihydrate obtained in processing the Khibiny apatite concentrate by hemihydrate sulfuric acid method was suggested by solutions containing alkali metal fluorides. It was shown that such treatment reduces the transit time of low-hydrated rare earth elements phosphates contained therein, which are poorly soluble in mineral acids, into the acid form from 2 months to 4–8 h. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Applied Chemistry Springer Journals

Activation of leaching of rare earth elements from phosphohemihydrate

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Publisher
Springer Journals
Copyright
Copyright © 2013 by Pleiades Publishing, Ltd.
Subject
Chemistry; Chemistry/Food Science, general; Industrial Chemistry/Chemical Engineering
ISSN
1070-4272
eISSN
1608-3296
D.O.I.
10.1134/S1070427213110025
Publisher site
See Article on Publisher Site

Abstract

Treatment of fresh phosphohemihydrate obtained in processing the Khibiny apatite concentrate by hemihydrate sulfuric acid method was suggested by solutions containing alkali metal fluorides. It was shown that such treatment reduces the transit time of low-hydrated rare earth elements phosphates contained therein, which are poorly soluble in mineral acids, into the acid form from 2 months to 4–8 h.

Journal

Russian Journal of Applied ChemistrySpringer Journals

Published: Feb 1, 2014

References

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