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针对国内某厂高铅碲铜阳极泥处理工艺改进进行了研究。通过电位控制分步置换分铜后液中的银和碲,银粉品位由原来的99%提高到99.95%;通过碱浸脱铅碲-二次水溶液氯化-控制电位还原,海绵金粉品位由原来的96%～97%提高到99.99%。
Aiming at the improvement of high lead-tellurium copper anode slime treatment in a domestic factory, The potential of silver powder is increased from 99% to 99.95% by step-by-step replacement of silver and tellurium in the copper after liquid-phase control. The alkali-leaching of lead-tellurium-secondary aqueous solution- Of the 96% ~ 97% to 99.99%.