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绪言目前一般对含贵金属较高的硫化铜矿,通过火法处理,使贵金属经冰铜后富集于铜阳极泥中,再进行回收。但是,火法流程不可避免地会产生SO_2气体及有害微尘,使环境受到污染,且对含铅、锌高的复杂铜矿难于处理。而氯盐浸出湿法炼铜不仅对这类铜矿的适应性较大,又能控制对环境的污染,但对其中贵金属的回收是否理想,都是人们十分关注的问题。本文着重讨论CuCl_2氯盐溶液浸出湿法炼铜过程中回收贵金属的问题。
INTRODUCTION At present, copper sulfide ores containing higher noble metals are generally treated by fire to make the precious metals be enriched in copper anode slimes after matte addition and recovery. However, the pyrometallurgical process inevitably generates SO 2 gas and harmful fine dust, pollutes the environment, and is difficult to handle for complex copper mines containing lead and zinc. Chloride leaching wet-process copper is not only more adaptable to such copper ore, but also can control the pollution of the environment, but whether the recovery of precious metals is ideal or not is a problem of great concern to people. This article focuses on the CuCl_2 chloride solution leaching wet-process copper recovery precious metals.