摘要
甘肃某金矿属于含砷较高的铅、锌、金、银多金属矿,有用矿物种类较多。在原矿性质研究的基础上,进行了不同工艺方案的试验研究。在综合分析了各种方案的技术指标及优缺点的情况下,确定采用优先选铅-锌硫混浮-锌硫分离工艺试验方案。在最佳条件试验基础上,最终闭路试验可以获得铅品位为47.71%,铅回收率为71.45%,伴生金品位为16.50g/t,金回收率为8.82%,伴生银品位3561g/t,银回收率为72.62%的铅精矿,锌品位为40.42%,锌回收率为48.07%的锌精矿和金品位为30.86g/t,金回收率为84.01%的金精矿。该方案产品结构合理,铅、锌、金、银等有价金属均能得到较好的回收。
A gold mine in Gansu province belongs to lead,zinc,gold and silver polymetallic ore with high arsenic content,and there are many kinds of useful minerals.On the basis of the study on the properties of raw ore,the experimental study on different process schemes has been carried out.Based on the comprehensive analysis of the technical indicators and advantages and disadvantages of various schemes,the test scheme of preferential separation of lead-zinc-sulfur bulk flotation-zinc-sulfur separation process was determined.On the basis of the optimum conditions,the final closed-circuit test can obtain lead concentrate with Pb grade of 47.71%,Pb recovery of 71.45%,associated Au grade of 16.50g/t,Au recovery of 8.82%,associated Ag grade of 3561g/t,Ag recovery of 72.62%and zinc concentrate with Zn grade of 40.42%,Zn recovery of 48.07%and gold concentrate with Au grade of 30.86g/t,Au recovery of 84.01%.The product structure of this scheme is reasonable,and valuable metals such as lead,zinc,gold and silver were well recovered.
作者
杨俊龙
郭艳华
YANG Junlong;GUO Yanhua(Northwest Research Institute of Mining and Metallurgy,Baiyin 730900,Gansu,China)
出处
《有色金属（选矿部分）》
CAS
北大核心
2021年第2期77-82,共6页
Nonferrous Metals（Mineral Processing Section）
关键词
高砷
硫化铅
金
浮选
high-arsenic
lead sulfide
gold
flotation
