四川某难选硫化铅锌银矿石浮选试验  

Beneficiation Tests of a Refractory Lead-zinc-sliver Sulfide in Sichuan Province

作　　者：邱廷省[1] 赵冠飞[2] 朱冬梅[2] 杨云[2] 张宝红[2] 

机构地区：[1]江西理工大学 [2]江西理工大学资源与环境工程学院

出　　处：《金属矿山》2012年第12期62-65,94,共5页Metal Mine

摘　　要：针对四川某铅锌银矿原选矿工艺不能适应矿石性质变化,而且在流程中使用氰化物的问题,对该矿矿石重新进行了浮选试验,结果表明:在-0.074 mm占85%的磨矿细度下,以石灰为调整剂、硫酸锌+亚硫酸钠为抑制剂、乙硫氮为捕收剂优先选铅,选铅尾矿以硫酸铜为活化剂、丁黄药为捕收剂选锌,可获得铅品位为51.80%、铅回收率为64.75%的铅精矿和锌品位为53.55%、锌回收率为91.83%的锌精矿,银在铅、锌精矿中的总回收率达到83.75%。试验不仅使铅、锌、银的回收率与现场工艺相比有明显提高,而且实现了铅锌无氰分离。Aimed at the problems that the former beneficiation process can not adapt the nature of the ore and cyanide addition in the process for a lead-zinc-silver mine in Sichuan,another flotation test on this ore was made.The results showed that： under the grinding fineness of-0.074 mm 85%,and with lime as adjusting agent,zinc sulfate＋sodium sulfite as inhibitor,diethyldithioc butyl xanthate as collector to concentrate zinc,lead concentrate with grade of 51.80% and lead recovery of 64.75% and zinc concentrate with grade of 53.55% and recovery of 91.83% were obtained separately.The total recovery of silver in lead and zinc concentrates reached 83.75%.The tests realized higher recovery of lead,zinc and silver and adopted cyanide-free process,comparing with the on-site process.

关 键 词：硫化铅锌银矿石 铅锌依次浮选 硫酸锌+亚硫酸钠组合抑制剂 无氰工艺 

分 类 号：TD862[矿业工程—金属矿开采]