为萨拉伊尔斯克含重晶石的铅-锌矿石制定了新的正优先浮选工艺。该新工艺铅扫选和铅再选扫选尾矿不返回,直接作为锌浮选回路给矿。在锌浮选中用硫代氨基甲酸盐与丁基黄药作捕收剂。新工艺大幅度提高了锌精矿的质量,锌精矿锌品位从45.6%提高到56.57%,锌回收率提高了16.47%,即达到83.67%。此外,铅精矿铅回收率与老工艺流程相比提高6.1%,铅品位提高2.27%。增加铅精选次数,可以使精矿铅品位从33.2%提高到51.13%,铅回收率提高1.3%。 A new positive priority flotation process has been established for the barite-bearing lead-zinc ore from Sarajewsk. The new process lead scavenging and lead re-election sweep tailings does not return directly to the zinc flotation circuit to the mine. In zinc flotation with thiocarbamates and butyl xanthate collector. The new process greatly improved the quality of zinc concentrate, zinc concentrate zinc grade from 45.6% to 56.57%, zinc recovery rate increased 16.47%, which reached 83.67%. In addition, lead concentrate lead recovery rate increased 6.1% compared with the old process, lead grade increased 2.27%. Increasing the number of selected lead, can lead concentrate grade from 33.2% to 51.13%, lead recovery rate increased by 1.3%.