扎西康铅锌多金属矿床物质组分特征及工艺性质

扎西康铅锌多金属矿床的有用成分为铅、锌、锑、银,伴生有用成分为铜、金、镓、铟,矿石破碎后〉0.25 mm粒级的产率最大,其次是〈0.075 mm粒级,其他粒级占有率均较少,特别是0.096～0.075 mm粒级,仅占1.60%。铅、锌、锑元素的品位在各个粒级中几乎无变化,银的品位随粒度由粗至细有逐渐升高的趋势,因此要注意细粒级中银的回收。铜、金、镓元素的品位在各个粒级中几乎无变化,粒级由粗至细,品位较为平稳,铟品位随着粒度由粗至细有逐渐增高的趋势,特别是〈0.075 mm的粒级中,品位达到了2.11×10-6,推测铟有可能形成极少量的细小矿物包裹于闪锌矿中,并非完全以分散态产出。

Technology and Characteristics of Components of Lead-Zinc Polymetallic Deposit in Zhaxikang

The useful components in lead,zinc,antimony,silver and associated useful components are copper,gold,gallium,indium in lead-zinc polymetallic deposit of Zhaxikang.Most ores are crushed greater than 0.25 mm,then less than 0.075 mm.0.096 to 0.075 mm only accounts for 1.60%.Lead,zinc and antimony almost not change in every grade.Silver gradually increases from coarse to fine grade,so more attention should be paid to sliver recovery in fine grade.Copper,gold,gallium almost not change in every grade,but indium gradually increases from coarse to fine grade,especially when less than 0.075 mm,grading to 2.11 × 10-6,maybe indium parcels are small in sphalerite and not output in dispersed state.