A new method of sulfide precipitation,separation and NaClO_3-H_2SO_4 leaching to recover the copper from electroplating sludges,has been investigated.The recovery rate of copper was 94.5%.

• 以深圳市某电镀厂所产生的含铜、镍等金属的电镀污泥为对象；研究了硫化物沉淀分离提纯、氯酸钠-硫酸体系浸出回收铜的工艺路线；铜的总回收率为94.；5%25。