摘要
辽宁某氰化尾渣金品位 2.01 g/t,银品位 36.23 g/t,铜、铅、锌品位分别为 0.33%、1.91%、3.01%.针对该氰化尾渣进行铜铅锌混合浮选试验及优先选铅—尾矿选锌浮选试验.铜铅锌混合浮选试验可获得金品位13.72 g/t、银品位281.70 g/t、铜品位3.63%、铅品位16.01%、锌品位36.92%,金、银、铜、铅、锌回收率分别为50.09%、57.22%、80.69%、61.33%、90.88%的混合精矿;优先选铅—尾矿选锌浮选试验可获得铅品位48.95%、铅回收率52.29%的铅精矿,锌品位43.21%、锌回收率89.45%的锌精矿,铅精矿中金、银、铜品位分别为 54.02 g/t、891.42 g/t、5.92%,锌精矿中金、银、铜品位分别为2.43 g/t、134.79 g/t、2.19%,总金、总银、总铜回收率分别为62.39%、73.43%、77.76%.选别指标良好,为该类氰化尾渣资源的综合回收利用提供了参考依据.
Abstract
The gold grade of cyanide tailings from a gold mine in Liaoning is 2.01 g/t,with a silver grade of 36.23 g/t,copper grade of 0.33%,lead grade of 1.91%,and zinc grade of 3.01%.Copper-lead-zinc mixed flo-tation tests and tests on preferential separation of lead-zinc flotation from the tailings were conducted on the cyanide tailings.The copper-lead-zinc mixed flotation test yielded a mixed concentrate with gold grade of 13.72 g/t,silver grade of 281.70 g/t,copper grade of 3.63%,lead grade of 16.01%,and zinc grade of 36.92%.The recovery rates for gold,silver,copper,lead,and zinc were 50.09%,57.22%,80.69%,61.33%,and 90.88%,respectively.The process of preferential separation of lead-zinc flotation from the tailings produced a lead concentrate with a grade of 48.95%and a recovery rate of 52.29%,and a zinc concentrate with a grade of 43.21%and a recovery rate of 89.45%.In the lead concentrate,the gold grade,silver grade,and copper grade,were 54.02 g/t,891.42 g/t,5.92%,respectively.In the zinc concentrate,the gold grade,silver grade,and copper grade,were 2.43 g/t,134.79 g/t,and 2.19%,respectively.The total recovery rates for gold,silver,and copper were 62.39%,73.43%,and 77.76%,respectively.The separation indices were favorable,providing a reference basis for the comprehensive utilization of similar cyanide tailings resources.
基金项目
国家重点研发计划(十四五)(2023YFC2907803)
维普
万方数据