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Fluorination of beryllium concentrates with ammonium fluorides

  • Inorganic Synthesis and Industrial Inorganic Chemistry
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Abstract

New method for processing of beryllium ores to beryllium oxide was suggested and studied. The method is based on decomposition of bertrandite or phenacite with ammonium chloride, with the subsequent leaching of ammonium tetrafluoroberyllate and precipitation from a beryllium hydroxide solution. The thermodynamic characteristics were calculated and a thermogravimetric analysis of the process was made. The kinetics of beryllium oxide fluorination with ammonium fluoride was experimentally studied. A technological scheme of a closed cycle for processing of beryllium-containing raw materials with ammonium fluoride was suggested.

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Authors and Affiliations

  1. Tomsk Polytechnic University, Tomsk, Russia

    A. A. Andreev, A. N. D’yachenko & R. I. Kraidenko

Authors
  1. A. A. Andreev
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  2. A. N. D’yachenko
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  3. R. I. Kraidenko
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Additional information

Original Russian Text © Andreev, A.N. D’yachenko, R.I. Kraidenko, 2008, published in Zhurnal Prikladnoi Khimii, 2008, Vol. 81, No. 2, pp. 190–194.

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Andreev, A.A., D’yachenko, A.N. & Kraidenko, R.I. Fluorination of beryllium concentrates with ammonium fluorides. Russ J Appl Chem 81, 178–182 (2008). https://doi.org/10.1134/S1070427208020043

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  • DOI: https://doi.org/10.1134/S1070427208020043

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