METHOD OF PRODUCTION OF CHROMIUM CARBIDE Russian patent published in 2007 - IPC C01B31/30 

FIELD: powder metallurgy; methods of production of chromium carbide.

SUBSTANCE: the invention is pertaining to the field of powder metallurgy, in particular, to production of the chromium carbide by the carbothermal reduction of its oxide. The method provides for mixing of the powders of the chromium oxide and carbon oxide and the subsequent heat treatment. The heat treatment conduct in the stream of nitrogen at the nitrogen feeding speed of no more than 3.3 l/h at the temperature of 1100-1350 °С. The invention allows to simplify the process of production of the chromium carbide and also allows to produce the final product with the minimum amount of carbon and oxygen impurities.

EFFECT: the invention ensures simplification of the process of production of the chromium carbide and also the final product with the minimum amount of carbon and oxygen impurities.

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