电化学法从废料中回收金银和铅的工艺研究  

Electrochemical Separation Process for Recovery of Gold,Sliver and Lead from Scrap

作　　者：梁琥琪[1] 徐扣珍[1] 陈世 曹雪琴 张仲燕[1] 

机构地区：[1]上海大学化工学院

出　　处：《环境科学》1996年第6期53-56,共4页Environmental Science

摘　　要：研究从含ＡＵ、Ａｇ和Ｐｂ废料中综合回收ＡＵ、Ａｇ和Ｐｂ的电化学分离过程．在实验确定的最佳工艺条件（电极组成：７０ｇ／ＬＰｂ２＋、１００ｇ／Ｌ（ＳｉＦ）．电解温度４０℃，电流密度１００Ａ／ｍ２，β－萘酚、骨胶浓度分别为０．００２ｇ／Ｌ和０．５ｇ／Ｌ）下制得了纯度为９９％Ｐｈ的平滑致密阴极铅沉淀物，铅电流效率大于９８％，比电能消耗１１７ｋｗ·ｈ／ｔＰｂ，ＡＵ、Ａｇ进入阳极泥的回收率分别高于９９％和９８％．he electrochemical separation process for comprehensive recovery of gold,silver and lead from An, Ag-containing,scrap was investigated. The smooth and dense cathayic deposit with purity of 99% Ph was prepared by electrochemical separation process under the OPtimal technological conditions(electrolyte compoSiwhl 70g/L Ph2+,100 g/L total SiF 1 solution teoprature:40℃.current densityl 100 A/m2;concentration of β-naphthol tobone glue: 0.002 g/L and 0.5 g/L)experimentlly.The current efficiency of lead was higher than 98%,the speCific electric energy consumption was 117 kW. h/tpb. The recovery of An and Ag in the anode slime were as high as 99% and 98% respeCtively.

关 键 词：金银回收 电化学分离 废料处理 铅回收 电解精炼 

分 类 号：TF830.44[冶金工程—有色金属冶金] TF812.052