萃取法提铜是六十年代发展起来的湿法炼铜新工艺。即用一种萃取剂将稀铜液富集后电解,它可以从低品位矿石、废石和选矿尾矿中较经济合理地生产出优质电解铜。有色金属研究院广东分院与广东恩平铜矿协作,以萃取法提铜代替铁置换的老工艺,用对铜有高度选择性的羟肟酮萃取剂 N-520,从含铜1～2 Extracting copper is developed in the sixties wet-process copper refining new technology. That is, an extractant is used to enrich the dilute copper solution for electrolysis. It can economically and reasonably produce high quality electrolytic copper from low grade ore, waste rock and beneficiation tailings. Guangdong Branch of Nonferrous Metal Research Institute and Guangdong Enping Copper Mine collaborative extraction of copper instead of replacing the old iron process, with a highly selective copper oxalate extractant N-520, from 1 to 2