Removal of arsenic, antimony and bismuth from molten copper...

Details Removal of arsenic, antimony and bismuth from molten copper... Removal of arsenic, antimony and bismuth from molten copper...

C - Chemistry, Metallurgy

22

B

53/282

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

Patent

CA 1093835

K-0459-KCC ABSTRACT OF THE DISCLOSURE A method for removing bismuth, antimony, and/or arsenic impurities from molten copper by contacting such molten copper with sulfur hexafluoride gas, which reacts directly with the specified impurities to form gaseous fluorides, is described.

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