铜—锌或铜—铅—锌多金属复杂矿,一般是硫化矿物互相共生,结合紧密、浸染粒度细,用单一机械选矿方法难以使铜、锌等金属得到有效分离,其指标亦低。多年来,日、苏等国对此类矿的选、冶处理进行了一系列试验研究工作。根据国外研究结果与实践经验表明,将此类矿石先选为混合精矿或 Copper - zinc or copper - lead - zinc complex polymetallic ore, usually sulphide minerals symbiotic with each other, with close, disseminated fine particle size, with a single mechanical beneficiation method is difficult to make copper, zinc and other metals are effectively separated, the indicators are low. Over the years, Japan, the Soviet Union and other countries on such ore selection, metallurgical treatment conducted a series of experimental research. According to foreign research results and practical experience shows that the first choice of such ore mixed concentrate or