浮选混合精矿铅、硫分离试验研究

Experimental study on the seperation of lead and sulfur from floatation mixed concentrate

李子金矿碎石子主矿体矿石经浮选后的金精矿中主要含金、铅、银和硫。用25号黑药对其进行分离浮选,可使混合精矿铅品位达30.92%,铅的回收率达94.87%;尾矿中的硫品位达55.91%,硫精矿便于销售。通过对混合精矿分离浮选产生的成本及产值分析可知,如生产中采用试验所确定的工艺流程,每月可多创效益1.34～2.60万元。

The floatation gold concentrate from Suishizi main orebody in Lizi gold mine mainly contents gold,lead,silver and sulfur.Separation floatation is carried out with No.25 aerofloat,and the lead grade in the mixed concentrate can reach 30.92 % and the recovery rate of lead is 94.89 %.Meanwhile,the sulfur grade in tailings can be up to 55.91 %,which is easy to be sold.Analysis on the cost and benefit of refloatation of mixed concentrate shows that with the experimental flowsheet,additional 13.4 ～26 thousands RMB benefits will be obtained per month.