阶段磨矿—异步浮选工艺回收某铜冶炼渣中的铜  

Investigation on Recovery of Copper from Smelting Slag by Asynchronous Flotation

作　　者：王鹏程 王洪成 斗孙平 王帅 朱贤文 WANG Pengcheng;WANG Hongcheng;DOU Sunping;WANG Shuai;ZHU Xianwen(Technology Development of Western Mining Group Co., Ltd, Xining 810006, Qinghai, China;Research Center of Nonferrous Mineral Resources of Engineering and Technology in Qinghai Province, Xining 810006, Qinghai, China;Qinghai province key laboratory of Plateau Mineral Processing Engineering and Comprehensive Utilization, Xining 810006, Qinghai, China;Tibet Yulong Copper Industry Co., Ltd., Changdu 854000, Tibet, China)

机构地区：[1]西部矿业集团科技发展有限公司,青海西宁810006 [2]青海省有色矿产资源工程技术研究中心,青海西宁810006 [3]青海省高原矿物加工工程与综合利用重点实验室,青海西宁810006 [4]西藏玉龙铜业股份有限公司,西藏昌都市854000

出　　处：《矿产保护与利用》2021年第5期118-122,共5页Conservation and Utilization of Mineral Resources

基　　金：青海省重大科技专项项目(2018-GX-A7);青海省企业技术创新项目(2019-JC-10);创新平台建设专项(2020-ZJ-Y07)。

摘　　要：铜火法冶炼渣中铜品位为5.23%,具有良好的回收利用价值。原矿中铜矿物主要为冰铜和金属铜,脉石矿物主要为铁酸盐和铁橄榄石,还有大量的玻璃相。玻璃相的存在为选矿带来不利的影响。对该冶炼渣采用阶段磨矿—异步浮选工艺,在较粗的磨矿细度下优先回收可浮性较好的粗颗粒铜矿物,获得含铜45.36%、铜回收率81.65%的铜精矿,浮选尾矿再磨后回收细粒级的铜矿物,获得含铜13.65%、铜回收率13.74%的综合铜精矿,综合铜精矿含铜33.99%,含金3.42 g/t,含银79.17 g/t,铜回收率95.40%,金回收率85.94%,银回收率81.17%,该冶炼渣中的铜、金和银均得到较好的回收。The copper grade in copper smelting slag is 5.23%,which has good recycling value.Copper minerals in the raw slag are mainly matte and metallic copper.The gangue minerals are mainly ferrite and iron olivine.There are a large number of glass phases.The existence of glass phase has an adverse impact on beneficiation.Asynchronous flotation process is adopted for the smelting slag to preferentially recover coarse-grained copper minerals with good floatability under coarse grinding fineness.The copper concentrate with copper content of 45.36%and copper recovery of 81.65%was obtained.Fine grained copper minerals are recovered after regrinding of flotation tailings.The comprehensive copper concentrate with copper content of 13.65%and copper recovery of 13.74%was obtained.The concentrate contains 33.99%copper,3.42 g/t gold and 79.17 g/t silver.The recovery rate gold and silver are 95.40%,85.94%and 81.17%respectively.The copper,gold and silver in the smelting slag are all well recovered.

关 键 词：铜冶炼渣 阶段磨矿 异步浮选 冰铜 

分 类 号：TD923[矿业工程—选矿] TD952.1