云南某含砷铅锌银多金属矿选矿试验研究

在工艺矿物学研究的基础上,对含铅 2.93% 、锌2.80%、银 110.45g/t、硫 26.94%,以及有害元素砷0.53%的云南某含砷铅锌银多金属矿进行了选矿试验研究。结果表明：采用铅优先-锌硫混合浮选再分离工艺,结合铅银矿物高效捕收剂BK915和黄铁矿抑制剂BD,获得了铅品位68.46%、铅回收率88.50%,银品位2358 g/t、银回收率84.37%,砷品位1.45%的铅精矿；锌品位51.32%、锌回收率89.07%,砷品位0.18%的锌精矿；硫品位49.14%,硫回收率82.35%的硫精矿。

Experimental Study On Beneficiation Of a Pb-Zn-Ag Polymetallic Ore containing arsenic in Yunnan

Based on the process mineralogy research, beneficiation tests were carried out on a lead-zn-silver polymetallic ore containing arsenic in Yunnan, which contains 2.93% lead, 2.80% zinc, 110.45g/t silver, 26.94% sulfur and 0.53% harmful element arsenic. A process composed of lead priority? zinc-sulfur bulk flotation and reseparation process was adopted, combined with BK915, an efficient lead-silver collector, and BD, a pyrite inhibitor. As a result,the experiment produced a lead concentrate with lead grade of 68.46%, lead recovery of 88.50%, silver grade of 2358 g/t, silver recovery of 84.37% and arsenic grade of 1.45% ,a zinc concentrate with zinc grade of 51.32%, zinc recovery of 89.07% and arsenic grade of 0.18%;a Sulfur concentrate with 49.14% sulfur grade and 82.35% sulfur recovery.