选矿技术贫化铜渣的研究进展

我国铜冶炼以火法为主，每年产出约1 800万t铜渣，由于铜渣中含有大量的有价金属，其综合回收利用十分必要。在铜渣回收利用工艺技术方面，选矿法贫化是近年来国内外专家学者的研究热点。在研究典型铜渣的成分及物相组成，查阅国内外最新研究成果基础上，综述了铜渣选矿技术贫化的研究进展，对比分析了浮选法、磁选法2种最具代表性的选矿贫化技术工艺流程及优缺点，展望了浮选法、磁选法的未来发展趋势，旨在为相关领域研究人员提供更好的借鉴作用。 

Research progress in depleted copper slag in beneficiation process

Pyrometallurgical process is the main method used in copper smelting in China, which produced about 18 million tons of copper slag every year. Given the enormous valuable metals contained in copper slag, it is necessary to comprehensively recycle them. Among all copper slag recycling technology, beneficiation depletion has become the research focus of domestic and foreign scholars in recent years. Based on the composition and phase composition of typical copper slag and latest research results at home and abroad, this paper summarizes the research progress of copper slag beneficiation technology dilution, compares and analyzes the process flow, advantages and disadvantages of floatation and magnetic separation method, and looks forward to the future development trend of the two methods, so as to provide references for researchers in related fields.