| 摘要 |
PROBLEM TO BE SOLVED: To provide a recycling method with which silver is safely and efficiently peeled from copper or copper alloy scrap subjected to silver plating, and the copper or the copper alloy scrap from which the silver plating has been peeled is used as the raw material for producing copper or a copper alloy. SOLUTION: The copper or copper alloy scrap C whose surface has been subjected to silver plating is dipped into an electrolytic tank 2 charged with an electrolytic peeling solution E composed of at least one kind selected from aliphatic organic acid and the salt thereof and a nonionic surfactant so as to electrolytically peel the silver plating, and the copper or copper alloy scrap from which the silver plating has been peeled is used as the raw material for producing the copper or the copper alloy. COPYRIGHT: (C)2011,JPO&INPIT
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