某含金银铅锌硫矿石银铅浮选工艺优选试验

为获得高品质的银铅精矿，对某高硫银铅锌多金属矿石分别进行异步浮选—粗精矿全部再磨浮选、异步快速浮选—中矿集中再磨浮选和分段分速异步浮选—粗精矿部分再磨浮选试验。试验结果表明：在磨矿细度为-0.074 mm 70%的情况下，分段分速异步浮选—粗精矿部分再磨浮选优于其余两种工艺，浮选流程获得的银铅精矿银品位621 g/t、银回收率54.18%，铜品位0.84%、铜回收率34.62%，铅品位62.78%、铅回收率89.42%，锌品位6.45%、锌回收率5.83%。

Optimization Test of Ag Pb Flotation Process for a Gold Silver Lead Zinc Sulfide Ore

In order to obtain high quality silver lead concentrate,test on high sulfur silver lead zinc polymetallic ore by asynchronous flotation coarse ore concentrate regrind flotation,asynchronous fast flotation middlings ore regrind and stage speed asynchronous flotation zinc sulfur sequential priority flotation process.The test resluts show that: under the condition that the grinding fineness is -0.074 mm 70%,staged speed asynchronous flotation zinc sulfur sequential priority flotation is better than the other two processes.The silver lead concentrate from the flotation process has a silver grade of 621 g/t,the silver recovery rate is 54.18%,the copper grade is 0.84%,the copper recovery rate is 34.62%,the lead grade is 6278%,the lead recovery rate is 89.42%,the zinc grade is 6.45%,and the zinc recovery rate is 5.83%.