C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
53/127
C22B 34/32 (2006.01) C22B 5/10 (2006.01) C22B 9/04 (2006.01)
Patent
CA 1289364
Abstract of the Disclosure A method for melting and reducing chrome ore, which comprises charging chrome ore and carbonaceous material, and blowing in oxygen gas under a pressure ranging from 1 to 600 Torr, while molten metal is being stirred by a stirring gas blown in. In this method, a reaction ves- sel capable of allowing top blowing and bottom blowing onto the molten metal and decreasing pressure within the vessel is employed. Chrome ore and carbonaceous materi- al can be used in the form of lumps or powder. When powdered ore and material are used, they can be injected through a lance or a tuyere into the vessel.
522788
Hasegawa Teruyuki
Hirano Minoru
Kawai Yoshihiko
Kikuchi Yoshiteru
Mori Hajime
Nippon Kokan Kabushiki Kaisha
Ridout & Maybee Llp
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