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采用选矿法对某废杂铜炼铜尘渣中的铜锌进行了回收研究。根据尘渣的物相分析结果和粒度分析结果,经简单破碎、自磨、筛分后丢弃含铜、锌低的粗粒部分,细粒部分并入其他处理流程。中粒级部分经磁选除铁后即得到铜作业回收率为96.46%、锌作业回收率为97.76%,铜锌综合品位为80.25%的合格精矿产品;细粒级部分经磁选、摇床重选后得到铜作业回收率为33.07%、锌作业回收率为2.15%,铜锌综合品位为79.81%的精矿产品。
The beneficiation method was used to recover the copper and zinc in a waste copper smelting copper slag. According to the results of phase analysis and particle size analysis of the dust residue, after simple crushing, self-polishing and screening, discard the coarse fraction containing copper and zinc and fine fraction into other processing flow. After the magnetic separation of the medium-sized fraction obtained after the copper recovery was 96.46%, zinc recovery was 97.76%, copper and zinc composite grade 80.25% of the qualified concentrate products; fine fraction by magnetic separation, shaking After bed re-election copper recovery was 33.07%, zinc recovery rate of 2.15%, copper and zinc integrated grade of 79.81% of the concentrate products.