Interaction of loparite concentrate with ammonium hydrodifluoride


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Аннотация

Results obtained in a study of the interaction between the loparite concentrate and ammonium hydrodifluoride are reported. It was found that the reactions of the main components of the concentrate with NH4HF2 yield complex ammonium fluorometallates. It was shown that water leaching of the fluorinated product makes it possible to transfer niobium and tantalum into solution together with fluoroammonium salts of titanium and silicon and to concentrate rare-earth elements in the insoluble residue in the form of complex salts of general formula NaLnF4.

Авторлар туралы

G. Krysenko

Institute of Chemistry, Far-Eastern Branch

Хат алмасуға жауапты Автор.
Email: Krisenko@ich.dvo.ru
Ресей, pr. 100-letiya Vladivostoka, Vladivostok, 690022

D. Epov

Institute of Chemistry, Far-Eastern Branch

Email: Krisenko@ich.dvo.ru
Ресей, pr. 100-letiya Vladivostoka, Vladivostok, 690022

M. Medkov

Institute of Chemistry, Far-Eastern Branch

Email: Krisenko@ich.dvo.ru
Ресей, pr. 100-letiya Vladivostoka, Vladivostok, 690022

E. Merkulov

Institute of Chemistry, Far-Eastern Branch

Email: Krisenko@ich.dvo.ru
Ресей, pr. 100-letiya Vladivostoka, Vladivostok, 690022

S. Ivannikov

Institute of Chemistry, Far-Eastern Branch

Email: Krisenko@ich.dvo.ru
Ресей, pr. 100-letiya Vladivostoka, Vladivostok, 690022

A. Nikolaev

Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Science Center

Email: Krisenko@ich.dvo.ru
Ресей, Akademgorodok 26a, Apatity, 184209

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