Metal powder production by direct reduction in an arc heater

Details Metal powder production by direct reduction in an arc heater Metal powder production by direct reduction in an arc heater

B - Operations, Transporting

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53/350, 18/500.1

B22F 9/00 (2006.01) B22F 9/18 (2006.01) B22F 9/22 (2006.01) C21B 13/12 (2006.01) C22B 4/00 (2006.01) C22B 23/02 (2006.01) C22B 34/22 (2006.01) C22B 34/32 (2006.01) C22B 47/00 (2006.01)

Patent

CA 1057509

ABSTRACT OF THE DISCLOSURE A process for the production of metal powder from an ore by direct reduction in an arc heater characterized by the steps of introducing a finely divided ore into an arc heated plasma gas to effect reduction of the ore to small liquid droplets of elemental metal in a reducing atmosphere and quenching the metal droplets to form solid metal powder, the metal having a melting point of not more than the temperature of the chemical reduction reaction, such metal being iron, chromium, vanadium, manganese, cobalt or nickel.

246083

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