高砷高锡铅阳极泥脱砷与综合回收工业试验  

Pilot test of arsenic removal and comprehensive recovery from high As,Sn and Pb bearing anode slime

作　　者：方红生 李慧颖 王晓阳 孙雁军 魏晓玲 王文祥 FANG Hong-sheng;LI Hui-ying;WANG Xiao-yang;SUN Yan-jun;WEI Xiao-ling;WANG Wen-xiang(Guangdong Polytechnic of Environmental Protection Engineering,Foshan 528216,Guangdong,China;Zhaoqing Feinan Metal Co.Ltd.,Zhaoqing 526233,Guangdong,China;Baiyin Institute of Mining and Metallurgy,Baiyin 730900,Gansu,China)

机构地区：[1]广东环境保护工程职业学院,广东佛山528216 [2]广东飞南资源利用股份有限公司,广东肇庆526233 [3]白银矿冶职业技术学院,甘肃白银730900

出　　处：《矿冶》2020年第4期111-115,136,共6页Mining And Metallurgy

基　　金：广西重点研发计划资助项目(桂科AB19259004);2018年度甘肃省高等学校科研项目(2018A-291);2017广东普通高校创新团队项目(2017GKCXTD004);2018年广东环境保护工程职业学院院长基金青年项目(K630118122012)。

摘　　要：在前期高砷高锡铅阳极泥脱砷及资源综合回收小试、扩大试验基础上,设计建造了3 t/d的高砷高锡铅阳极泥综合回收中试生产线。在碱料比(碳酸钠与阳极泥质量比)0.8、焙烧温度600℃、焙烧时间2.2 h、液固比(mL/g)3、浸出温度80℃、浸出时间2 h条件下实现了砷锡分离。浸出渣为锡铅锑渣,浸出液在80℃下蒸发结晶得到粗砷酸盐产品。产品锡铅锑渣含锡32.66%、铅12.65%、锑14.75%,粗砷酸盐中砷酸钠的纯度达到57.3%、含12个结晶水。高砷高锡铅阳极泥综合回收中试实现了阳极泥中砷和有价金属的分离回收,对于环境保护及资源的综合利用具有重要的现实意义。On the basis of the bench-scale and pilot experiments of As removal and resource comprehensive recovery from high As,Sn and Pb bearing anode slime,a 3 t/d pilot production line for comprehensive recovery of high As,Sn and Pb bearing anode slime was designed and constructed.The separation of As and Sn was achieved under the conditions of alkali ratio 0.8,roasting temperature 600℃,roasting time 2.2 h,liquid-solid ratio(mL/g)3,leaching temperature 80℃and leaching time 2 h.The leaching residue contains Sn,Pb and Sb,and the coarse arsenate product is obtained by evaporation crystallization of the leaching solution at 80℃.The results show that the leaching residue contains Sn 32.66%,Pb 12.65%and Sb 14.75%.The sodium arsenate has a purity of 57.3%and contains 12 crystalline water.The pilot test of comprehensive recovery of high As,Sn and Pb bearing anode slime has realized the separation and recovery of As and valuable metals in anode slime,which has important practical significance for environmental protection and comprehensive utilization of resources.

关 键 词：砷锡铅 阳极泥 碱性焙烧 中试 

分 类 号：TF812[冶金工程—有色金属冶金]