Processing of perovskite concentrate by ammonium hydrodifluoride

The results of studies of the hydrodifluoride leaching of the perovskite concentrate have been presented. It has been shown that processing the perovskite concentrate using fluoride technology enables one to transform niobium and tantalum into a solution, along with fluoroammonium salts of titanium,...

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Bibliographic Details
Published inTheoretical foundations of chemical engineering Vol. 50; no. 4; pp. 588 - 592
Main Authors Krysenko, G. F., Epov, D. G., Medkov, M. A., Sitnik, P. V., Nikolaev, A. I.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.07.2016
Springer Nature B.V
Subjects
Chemistry
Chemistry and Materials Science
Industrial Chemistry/Chemical Engineering
Perovskites
Selected Articles from the Journal Khimicheskaya Tekhnologiya
ammonium hydrodifluoride
fluorination
titanium-containing mineral raw materials
perovskite
fluoroammonium salts
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Summary:The results of studies of the hydrodifluoride leaching of the perovskite concentrate have been presented. It has been shown that processing the perovskite concentrate using fluoride technology enables one to transform niobium and tantalum into a solution, along with fluoroammonium salts of titanium, iron, and silicon, and to isolate rare-earth elements in the form of complex fluoroammonium salts mixed with CaF 2 within a few stages.
ISSN:0040-5795
1608-3431
DOI:10.1134/S0040579516040163