Magnesiothermic Preparation of Chromium Powders

Magnesiothermic Preparation of Chromium Powders

— We have studied the process underlying the preparation of chromium powders via the magnesium vapor reduction of the Cr 2 O 3 and MgCr 2 O 4 chromium oxide compounds in the temperature range from 700 to 800°C and residual argon pressures in the reactor from 5 to 20 kPa. The chromium powders obtaine...

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Veröffentlicht in:Inorganic materials 2021-02, Vol.57 (2), p.130-135
Hauptverfasser: Kolosov, V. N., Miroshnichenko, M. N., Orlov, V. M.
Format: Artikel
Sprache:eng
Schlagworte:
Argon
Chemistry
Chemistry and Materials Science
Chromite
Chromium
Chromium oxides
Industrial Chemistry/Chemical Engineering
Inorganic Chemistry
Magnesium
Materials Science
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Zusammenfassung:— We have studied the process underlying the preparation of chromium powders via the magnesium vapor reduction of the Cr 2 O 3 and MgCr 2 O 4 chromium oxide compounds in the temperature range from 700 to 800°C and residual argon pressures in the reactor from 5 to 20 kPa. The chromium powders obtained by reducing the MgCr 2 O 4 chromite have a specific surface area at a level of 34 m 2 /g and are characterized by a mesoporous structure.
ISSN:0020-1685
1608-3172
DOI:10.1134/S0020168521010076