摘要
某富银铅锌多金属矿银、铅、锌的品位分别为225g/t、3.26%、1.14%,所含矿物以硫化矿为主,另含有少部分氧化矿。为更好地回收细粒嵌布的银矿石,通过选用BK809作为硫化银铅捕收剂,采用"硫化银铅浮选—锌硫混合浮选再分离—锌硫混浮尾矿再选氧化铅"工艺进行浮选,并对硫化银铅精矿进行再磨处理,闭路试验获得的指标为:铅总精矿中金品位3.56g/t、金回收率49.94%、银品位3777g/t、银回收率71.22%、铅品位55.57%、铅回收率71.73%;锌精矿中锌品位53.60%、锌回收率69.46%;硫精矿中硫品位40.90%、硫回收率45.79%。
The grade of silver,lead and zinc in a Ag-rich Pb-Zn polymetallic ore are 225 g/t,3.26% and1.14%,respectively.The main minerals are sulfide ore and a small part of oxide ore.In order to better recover the fine-grained silver ore,BK809 was selected as the collector of silver lead sulfide,the process of " silver lead flotation-zinc sulfur mixed flotation separation-lead oxide separation from zinc sulfur mixed flotation tailings" is adopted for flotation,and the silver lead sulfide concentrate was reground.The closed-circuit test results show that the gold grade of the total lead concentrate is 3.56 g/t,the recovery rate of gold is 49.94%,silver grade is 3 777 g/t,silver recovery rate is 71.22%,lead grade is 55.57%,lead recovery rate is 71.73%,zinc grade in zinc concentrate is 53.60%,zinc recovery rate is 69.46%,sulfur grade in sulfur concentrate is 40.90%and sulfur recovery rate is 45.79%.
作者
冯晓燕
姜涛
赵志强
路亮
白洁
FENG Xiao-yan;JIANG Tao;ZHAO Zhi-qiang;LU Liang;BAI Jie(State Key Laboratory of Mineral Processing,BGRIMM Technology Group,Beijing 102628,China;China International Engineering Consulting Corporation,Beijing 100044,China)
出处
《矿冶》
CAS
2020年第5期50-56,共7页
Mining And Metallurgy
基金
矿冶科技集团科研基金项目(02-1913)。
关键词
富银铅锌多金属矿
选矿工艺
再磨
优先浮选
Ag-rich Pb-Zn polymetallic ore
mineral processing technology
regrind
selective flotation