Magnesiothermic Reduction of Mg4Ta2O9 in the Combustion Regime


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We have studied the magnesium reduction of the Mg4Ta2O9 tantalate in the combustion regime and assessed the influence of starting mixture parameters on the combustion speed and temperature, the degree of reduction, and characteristics of the resultant tantalum powders. The use of Mg4Ta2O9 as a precursor for the reduction process has made it possible to increase the degree of reduction and the specific surface area of tantalum powders. We have obtained powders with a specific surface area of up to 21 m2/g, which is a factor of 4–5 larger than in the case of the reduction of Ta2O5 under the same conditions.

Sobre autores

V. Orlov

Tananaev Institute of Chemistry and Technology of Rare Elements and Minerals, Kola Scientific Center

Autor responsável pela correspondência
Email: orlov@chemy.kolasc.net.ru
Rússia, Akademgorodok 26a, Apatity, Murmansk oblast, 184209

M. Kryzhanov

Tananaev Institute of Chemistry and Technology of Rare Elements and Minerals, Kola Scientific Center

Email: orlov@chemy.kolasc.net.ru
Rússia, Akademgorodok 26a, Apatity, Murmansk oblast, 184209

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