The annual average grade of sulfur in certain Lead-zinc tailing is 6％.Research shows that the main form of sulfur is pyrite in the tailing with the degree of dissociation of 66.55％.The metal distribution of pyrite whose particle size is larger than 40 μm is 56.51％.But the degree of dissociation of this part of pyrite is just 45.8％.In order to make full use of resources and make profits for the enterprise,this kind of Lead-Zinc tailing was researched.The results showed that sulfur concentrate with sulfur grade of 42.58％ and recovery of 60.12％ was obtained through the process of one roughing two cleaning,and one scavenging.This sulfur concentrate can be mixed with industrial production of high quality sulphur concentrate to increase the concentrate production.%某铅锌矿选硫尾矿中全年平均硫品位约为6％,研究结果表明损失在尾矿中的硫主要黄铁矿的形式存在,其解离度为66.55％.尾矿中+40μm粒级黄铁矿金属分布为56.51％,但其解离度只有45.8％.为使资源充分利用,并增加企业收入,对该铅锌矿选硫尾矿进行了实验研究.研究表明在设计的一次粗选,粗精矿再磨后两次精选,一次扫选浮选试验流程中,最终可获得硫品位为42.58％,回收率为60.12％的硫精矿.该硫精矿可与工业生产的高品质硫精矿混合从而提高精矿产量.
展开▼
