从大厂细脉带火烧区锡多金属矿石中回收微细粒铅锌  

Recovering Micro-granular Lead and Zinc from Veinlet Belt Fire Area Ore in Dachang

作　　者：胡明振[1,2] 陈锦全[1,2] 卜显忠[1,3] 曾纪术[1,2] 

机构地区：[1]广西华锡集团股份有限公司,广西柳州545006 [2]铟锡资源高效利用国家工程实验室,广西柳州545006 [3]西安建筑科技大学材料与矿资学院,陕西西安710054

出　　处：《金属矿山》2016年第3期86-90,共5页Metal Mine

基　　金："十二五"国家科技支撑计划项目(编号:2015BAB12B02);广西自治区重大专项(编号:桂科重1355002-1)

摘　　要：大厂细脉带火烧区锡多金属矿石存在铅锌矿物氧化严重、物相复杂、易泥化、微细粒回收难等问题。为实现矿石中铅锌矿物的高效、低成本、轻污染回收,采用优先浮选原则流程顺序回收铅锑和锌硫矿物,铅锑回收采用以硫酸锌+亚硫酸钠为抑制剂的絮凝粗选—分散精选工艺。闭路试验获得了铅、锑品位分别为24.58%和20.91%、铅、锑回收率分别为52.05%和59.27%的铅锑精矿,锌品位为44.24%、回收率为83.39%的锌精矿,以及硫品位为31.28%、回收率为49.66%的硫精矿。试验较好地实现了铅、锑、锌、硫的回收,损失在上述3精矿中的锡仅占8.89%,为后续选锡创造了良好的条件。Lead-zinc ore in tin poly-metallic ore of Dachang veinlet belt fire area was seriously oxide and complex,easy to become mud,and very difficult to recovering fine particle. For the realization of lead and zinc minerals recycling efficiently,low cost and light pollution,preferential flotation principle flow sequence was used. With Zn SO4 and Na2SO3as inhibitor flocculation roughing-dispersion concentrating process was used for lead recycling. In the closed circuit test,the lead antimony concentrate grade was 24. 58% and 20. 91% respectively,the recovery rate was 52. 05% and 59. 27% respectively. The zinc grade in zinc concentrate was 44. 24%,the recovery rate was 83. 39%,and the sulfur grade was 31. 28%,the recovery rate was49. 66%. The study meets the requirement of recovery of lead,antimony,zinc and sulfur. The total loss of tin is 8. 89%,which contribute a lot to the next recovery.

关 键 词：细脉带火烧矿 微细粒铅锌矿 絮团粗选 分散精选 

分 类 号：TD923.7[矿业工程—选矿]