Fluorination of germanium concentrates with ammonium fluorides

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 language	English
Pages (from-to)	952-955
Number of pages	4
Journal	Russian Journal of Applied Chemistry
Volume	81
Issue number	6
DOIs	https://doi.org/10.1134/S1070427208060050
Publication status	Published - Jun 2008

ASJC Scopus subject areas

Chemistry (miscellaneous)

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10.1134/S1070427208060050

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title = "Fluorination of germanium concentrates with ammonium fluorides",

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.",

author = "D'yachenko, {A. N.} and Kraidenko, {R. I.}",

year = "2008",

month = jun,

doi = "10.1134/S1070427208060050",

language = "English",

volume = "81",

pages = "952--955",

journal = "Russian Journal of Applied Chemistry",

issn = "1070-4272",

publisher = "Maik Nauka-Interperiodica Publishing",

number = "6",

}

TY - JOUR

T1 - Fluorination of germanium concentrates with ammonium fluorides

AU - D'yachenko, A. N.

AU - Kraidenko, R. I.

PY - 2008/6

Y1 - 2008/6

N2 - 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.

AB - 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.

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JF - Russian Journal of Applied Chemistry

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