Influence of the composition of precursors and reduction conditions on the properties of magnesiothermic molybdenum powders


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We have investigated the preparation of molybdenum powders by reducing the oxide compounds MoO3, MgMoO4, and CaMoO4 with magnesium vapor at residual argon pressures in the range 5–20 kPa and temperatures in the range 700–800°C. Using the MgMoO4 and CaMoO4 compounds as precursors, we have obtained molybdenum powders with specific surface areas of up to 20 m2/g. The powders have a mesoporous structure. The reduction of the molybdenum compounds under such conditions was accompanied by separation of the reaction products due to the removal of magnesium oxide from the reaction zone.

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V. Kolosov

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

编辑信件的主要联系方式.
Email: tantal@chemy.kolasc.net.ru
俄罗斯联邦, Akademgorodok 26a, Apatity, Murmansk oblast, 184209

M. Miroshnichenko

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

Email: tantal@chemy.kolasc.net.ru
俄罗斯联邦, Akademgorodok 26a, Apatity, Murmansk oblast, 184209

V. Orlov

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

Email: tantal@chemy.kolasc.net.ru
俄罗斯联邦, Akademgorodok 26a, Apatity, Murmansk oblast, 184209

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