Pyrometallurgical copper refining

C - Chemistry – Metallurgy – 22 – B

Patent

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C22B 15/14 (2006.01) C22B 15/00 (2006.01)

Patent

CA 1322659

PC-3117 ABSTRACT PYROMETALLURGICAL COPPER REFINING A copper converting process starting with white metal or a mixture of white metal and metallic copper in which oxidizing gas contacts the molten copper mass either at or near the top surface of the molten mass while the mass is sparged with an inert gas from at or near the bottom of the mass and sparging is continued after contact with the oxidizing gas ceases.

532721

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