本文研究了一种从废印刷线路板(PCB)中提金的新方法.在酸性溶液(pH=1～2)中,去铜后的PCB粉末中加入氧化剂二氧化锰(二者质量比为1∶0.7),络合剂硫氰酸钠溶液(0.4mol/L,固液比为1∶22),室温(20℃)振荡(250r/min)3h获得了超过96%的高浸金率.硫氰酸盐作为浸金剂,性质稳定,基本不污染环境.
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