铜冶炼渣综合回收利用进展

铜冶炼渣中铜品位和铁品位较高，且常伴生有金、银、铅和锌等有价金属元素，因此提高铜渣综合利用水平，有利于提高资源利用率，减轻环境污染。介绍了我国铜冶炼渣综合回收利用现状，分析了铜渣的组成与冷却方式，综述了火法贫化、湿法浸出和浮选法从铜渣中回收利用铜，以及用磁选法和浸出法回收利用铁的工艺技术，分析了各种方法的优缺点，概括了铜渣中其它有价金属的回收及在建材、功能材料方面的应用，并对铜渣综合回收利用的前景进行了展望。 

Progress in Comprehensive Recovery and Utilization of Copper Smelting Slag

The grade of copper and iron in copper smelting slag are high, and they are often associated with valuable metal elements such as gold, silver, lead and zinc. Therefore, improving the comprehensive utilization of copper slag is conducive to improving the utilization rate of resources and reducing environmental pollution. The present situation of comprehensive recovery and utilization of copper slag in China was introduced in this paper. The composition and cooling mode of copper slag was analyzed. The technology of copper recovery from copper slag by fire dilution, wet leaching and flotation, as well as iron recovery by magnetic separation and leaching was reviewed. The advantages and disadvantages of various methods were analyzed. The recovery of other valuable metals in copper slag and its application in building materials and functional materials were summarized. The prospect of the comprehensive recycling and utilization of copper slag was discussed.