Method of removing antimony from an antimony-containing copper electrolyte
AssigneeSumitomo Metal Mining Co., Ltd.
InventorHiroshi Sato
Life of this patent
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Abstract
The antimony in an antimony-containing copper electrolyte is removed by contacting the antimony-containing copper electrolyte with activated carbon at between room temperature and 60.degree. C.
Claims8
A method for the preferential removal of antimony from a copper electrolyte which contains nickel, antimony, arsenic and bismuth impurities, the method including the step of contacting said copper electrolyte with activated carbon whereby the antimony becomes associated with the activated carbon.
A method for the preferential removal of antimony from a copper electrolyte which contains nickel, antimony, arsenic and bismuth impurities, the method including the steps of contacting said copper electrolyte with activated carbon whereby the antimony becomes associated with the activated carbon, and then contacting the activated carbon having associated antimony with sodium hydroxide so as to separate the antimony therefrom.
Dependencies are inferred from the claim text.