介绍了加伊斯克和列特里叶矿床的含黄铁矿的铜-锌矿石的特性、可选性研究结果和选矿厂的扩建计划。研究结果表明,应用半自磨技术,而不是采用常规的破碎-磨矿技术,这样可以提高选矿厂的处理能力。进行了扩大试验,以确定矿石的可磨度。研制了混合-分离浮选流程。预计的选矿指标为:在处理铜品位为1.46%,锌品位为0.46%的加伊斯克矿石时,铜精矿铜品位为15%,铜回收率为85%,锌精矿锌品位为45%,锌回收率为32%。在处理铜品位为3.6%,锌品位为1.2%的列特里叶矿石时,铜精矿铜品位为15%,铜回收率为82%,锌精矿锌品位为45%,锌回收率为45%。 The characteristics of the pyrite-bearing copper-zinc ore in the Gadysk and Lietriya deposits, the results of the optional studies, and the plans for the expansion of the beneficiation plant are presented. The results show that the use of semi-autogenous grinding technology, rather than using the conventional crushing - grinding technology, which can improve the processing plant capacity. An expanded test was conducted to determine the grindability of the ore. Developed a mixed - separation flotation process. The expected beneficiation indicators are: Copper grade of copper concentrate is 15%, copper recovery rate is 85%, zinc concentrate zinc grade is 45% in the case of Jiaisike ore with copper grade of 1.46% and zinc grade of 0.46% , Zinc recovery rate of 32%. The copper grade of copper concentrates was 15%, the copper recovery was 82%, the zinc concentrate zinc grade was 45% and the zinc recovery rate was (at the time of treatment) of the ternary ore with a copper grade of 3.6% and a zinc grade of 1.2% 45%.