Fluorination of germanium concentrates with ammonium fluorides

A. N. D'yachenko, R. I. Kraidenko

Research output: Contribution to journalArticle

Abstract

New method for processing of germanium-containing raw materials to obtain germanium oxide was suggested and studied. The method is based on the fluorination of germanium-containing raw materials with ammonium fluorides, followed by a sublimation isolation of ammonium hexafluorogermanate, its dissolution, and precipitation of germanium oxide from solution. The thermodynamics of the process was calculated and its thermogravimetric analysis was made. The kinetics of germanium oxide fluorination by ammonium hydrodifluoride was experimentally studied. A technological scheme for processing of germanium-containing raw materials with ammonium fluoride was suggested.

Original languageEnglish
Pages (from-to)952-955
Number of pages4
JournalRussian Journal of Applied Chemistry
Volume81
Issue number6
DOIs
Publication statusPublished - Jun 2008

Fingerprint

Germanium oxides
Germanium
Fluorination
Raw materials
Ammonium Compounds
Sublimation
Processing
Thermogravimetric analysis
Dissolution
Thermodynamics
Kinetics
germanium oxide
ammonium fluoride

ASJC Scopus subject areas

  • Chemistry (miscellaneous)

Cite this

Fluorination of germanium concentrates with ammonium fluorides. / D'yachenko, A. N.; Kraidenko, R. I.

In: Russian Journal of Applied Chemistry, Vol. 81, No. 6, 06.2008, p. 952-955.

Research output: Contribution to journalArticle

D'yachenko, A. N. ; Kraidenko, R. I. / Fluorination of germanium concentrates with ammonium fluorides. In: Russian Journal of Applied Chemistry. 2008 ; Vol. 81, No. 6. pp. 952-955.
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