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AssigneeSumitomo Metal Mining Co., Ltd.
InventorsKeiji Kudou, Satoshi Asano, Shin-ichi Heguri, Hiroshi Takenouchi, Hirofumi Shouji, Itsumi Matsuoka, Shota Sanjo, Takumi Matsugi
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The present invention is a method for treating an alloy, by which a solution that contains nickel and/or cobalt is obtained from an alloy that contains copper, zinc, and nickel and/or cobalt, said method comprising: a leaching process wherein a leachate is obtained by subjecting the alloy to a leaching treatment by means of an acid in the coexistence of a sulfurizing agent; a reduction process wherein the leachate is subjected to a reduction treatment with use of a reducing agent; and an ion exchanging process wherein a solution that contains nickel and/or cobalt is obtained by bringing a solution, which has been obtained in the reduction process, into contact with an amino phosphoric acid-based chelate resin, thereby having zinc adsorbed on the amino phosphoric acid-based chelate resin.
A method for treating an alloy, for obtaining a solution comprising nickel and/or cobalt from an alloy comprising nickel and/or cobalt, copper, and zinc, the method comprising:
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