高银铅铜混合精矿选矿试验研究  

Experimental study on the mineral processing of a high Ag-Pb-Cu mixed concentrate

作　　者：林辉 邹坚坚 王成行 汪志平 李强 LIN Hui;ZOU Jianjian;WANG Chenghang;WANG Zhiping;LI Qiang(Jiangxi Dangping Tungsten Industry Co.Ltd.,Dayu 341500,Jiangxi,China;Institute of Resources Utilization and Rare Earth Development,Guangdong Academy of Sciences,State Key Laboratory of Separation and Comprehensive Utilization of Rare Metals,Guangdong Provincial Key Laboratory Development and Comprehensive Utilization of Mineral Resources,Guangzhou 510650,China)

机构地区：[1]江西荡坪钨业有限公司,江西大余341500 [2]广东省科学院资源利用与稀土开发研究所,稀有金属分离与综合利用国家重点实验室,广东省矿产资源开发与综合利用重点实验室,广州510650

出　　处：《贵金属》2024年第2期69-74,共6页Precious Metals

基　　金：云南省基础研究和应用基础研究重大项目(202302AO370002);云南贵金属实验室有限公司开放课题(YPML-2023050277);广东省科学院高端领军人才培育培养资助专项项目(2017GDASCX-0301)。

摘　　要：某高银铅铜混合精矿为铜铅混浮产品,表面受到浮选药剂严重污染,导致铜矿物与铅矿物可浮性差异微小,给铜铅分离带来非常不利的影响,其银品位达到4208.0 g/t,铅品位43.28%,铜品位3.39%,98.80%的银赋存于方铅矿。采用“活性炭脱药-抑铅浮铜”工艺流程处理,环保高效的方铅矿抑制剂GYC,高效铜捕收剂SAC,全流程试验获得银品位4839.2g/t,银回收率97.36%,铅品位50.05%,铅回收率97.90%的银铅精矿;铜品位20.16%,铜回收率91.23%,银品位724.6g/t,银回收率2.64%的铜精矿,实现了混合精矿中银铅与铜的高效回收。Ag-Pb-Cu mixed concentrate is a product of copper and lead floating and contains a silver grade of 4208.0 g/t,along with 3.3%of copper and 43.28%of lead.And 98.80%of silver is deposited in galena.The surface of the concentrate has been heavily contaminated with the flotation reagents,leading to a little difference in the floatability between galena and chalcopyrite.Consequently,separating chalcopyrite from galena is very difficult.In this experimental study,a combined process of removing the flotation reagents by activated carbon and flotating copper by the suppression of lead was adopted to treat the concentrate.By using a high-efficiency galena inhibitor(GYC)and chalcopyrite collector(SAC),an effective recovery of silver,lead and copper from the mixed concentrates was achieved.After the treatment of the mixed concentrate,the silver grade in obtained silver-lead concentrate was 4839.2 g/t with a recovery rate of 97.36%and the grade of lead was 50.05%with a recovery rate is 97.90%.In obtained copper concentrate,the silver grade was 724.6 g/t with a recovery rate of 2.64%and the copper grade was 20.16%with a recovery rate of 91.23%.

关 键 词：银 脱药 方铅矿 黄铜矿 环保 

分 类 号：TD923[矿业工程—选矿]