| abstract |
(57) [Summary] A method for separating and recovering valuable substances such as bismuth, antimony, and copper from electrolytically precipitated copper containing alkali oxides containing copper oxide and bismuth produced from a non-ferrous smelting process. The purpose is to provide. SOLUTION: An alkali-treated product of electrolytically precipitated copper containing copper oxide, bismuth and antimony is leached with 50 to 200 g / L sulfuric acid at a liquid temperature of 40 to 90 ° C. for a treatment time of 2 to 5 hours, A method for treating electrolytically precipitated copper that separates bismuth, antimony, copper, and the like by eluting copper, arsenic, nickel, and the like, and leaving bismuth and antimony in the residue. |