Productions of metals

Details Productions of metals Productions of metals

C - Chemistry, Metallurgy

22

B

53/118

C22B 34/00 (2006.01) C01B 31/30 (2006.01) C22B 34/32 (2006.01) C22C 38/18 (2006.01)

Patent

CA 1053910

PRODUCTION OF METALS ABSTRACT OF THE DISCLOSURE Metals, particularly chromium, are recovered from low grade ore in substantially pure form using non-polluting, procedures. Chromium in the ore is separated from gangue constituents including iron and is formed into sodium chromate. The sodium chromate by solid state reaction is converted to the sponge metal. Metal carbides may be formed by solid state reduction of the corresponding oxides with carbon.

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