Metallurgical process using oxygen

Details Metallurgical process using oxygen Metallurgical process using oxygen

C - Chemistry, Metallurgy

22

B

53/352

C22B 5/00 (2006.01) C22B 7/04 (2006.01)

Patent

CA 1045831

Abstract of the Disclosure A process for producing fire-refined metallic copper, copper-nickel, or cobalt nickel from their sulfides. A molten substantially iron-free metal sulfide bath is established in a tiltable non-rotary sealed refractory-lined converter. Oxygen in gas concentrations and amounts effective to achieve bath temperature levels required for high reaction rates is directed upwardly into said molten bath through several subsurface injectors until the overall quantity of oxygen reacted there- with is about the stoichiometric amount required to convert substantially all of the sulfur present in the bath to sulfur dioxide, and sulfur dioxide is introduced through said sub- surface injectors as shielding fluid surrounding the oxygen in regulated amounts effective for protecting the injectors and surrounding refractories until the sulfur content of the molten bath is reduced to less than about 5 percent, at which time the sulfur dioxide is replaced with hydrocarbon fluid. - 1 -

297209

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