| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for efficiently separating and recovering by separating bismuth from copper and lead produced from a non-ferrous smelting process with a wet-type treatment. SOLUTION: In the recovering method of the bismuth, bismuth salt water- solution is subjected to pH adjustment, and after precipitating crude oxy-bismuth chloride, the bismuth is separated and recovered from the copper and the lead by dissolving with acid and reducing.
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