C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
53/95
C22B 34/32 (2006.01) B22F 9/28 (2006.01) C21C 5/00 (2006.01) C22B 5/10 (2006.01)
Patent
CA 1336646
A reduced chromium-ore bearing powder used for production of a chromium-containing steel in a converter, is produced by a reduction of chromium ore-powder having a particle-diameter of 3 mm or less by a carbonaceous reducing agent having a particle deameter of 3 mm or less in an inert-gas atmosphere, while the chromium-ore powder and carbonaceous reducing agent are stirred and mixed with each other in the reaction chamber (5). The reduced chromium-ore powder has 3 mm or less of particle diameter. Acid-soluble chromium is in an amount of 85 % or more of the total chromium, and acid-soluble iron is in an amount of 95 % or more of the total iron.
593666
Minagawa Tsutomu
Saito Sadahiro
Uemura Tadashi
Goudreau Gage Dubuc
Minagawa Tsutomu
Saito Sadahiro
Showa Denko Kabushikikaisha
Shunan Denko Kabushikikaisha
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