某钼铅锌多金属矿资源综合回收选矿工艺研究

Beneficiation Process Study of Resources Comprehensive Recovery on a Molybdenum Lead-zinc Polymetallic Ore

原矿中主要有价金属为钼,伴生少量的铅、锌、银等,铅锌银品位太低而不具有单独回收价值。小型试验和半工业试验结果表明,大部分的铅锌银会随着辉钼矿的上浮而富集于钼粗精矿中,钼精选分离过程中铅锌银主要分布在分离尾矿中。综合回收选矿试验获得含钼45.03%、钼回收率84.54%的钼精矿、含锌55.43%、锌回收率67.56%的锌精矿,以及含硫35.53%的硫精矿,综合回收铅锌银可最大限度降低资源回收成本,提高资源综合利用率。

Molybdenum is the main valuable metal in run-of-mine ore, associated small amounts of lead, zinc, silver, etc. The grade of lead, zinc and silver are too low for recycling. The results of laboratory tests and pilot-scale tests show that most of the lead, zinc and silver are floated with molybdenite and enriched in rough molybdenum concentrate, which are mainly distributed in the tailings of molybdenum selected separation process. The result shows that molybdenum concentrate of Mo 45.03% with a recovery of 84. 54% , zinc concentrate of Zn 55.43% with a recovery of 67.56%, sulfur concentrate of S 35.53% are obtained by comprehensive recovery experiment, which can minimize recycling costs and improve resource comprehensive utilization.