PRACTICAL APPLICATION OF POTENTIAL-PH DIAGRAMS FOR AU-CS(NH2)(2)-H2O AND AG-CS(NH2)(2)-H2O SYSTEMS FOR LEACHING GOLD AND SILVER WITH ACIDIC THIOUREA SOLUTION

被引：33

作者：

GASPAR, V

MEJEROVICH, AS

MERETUKOV, MA

SCHMIEDL, J

机构：

[1] TECH UNIV KOSICE,DEPT NONFERROUS MET,CS-04385 KOSICE,SLOVAKIA

[2] GINALMAZZOLOTO MOSCOW,MOSCOW 103614,RUSSIA

来源：

HYDROMETALLURGY | 1994年 / 34卷 / 03期

关键词：

D O I：

10.1016/0304-386X(94)90073-6

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The possibility of gold and silver extraction from products obtained during treatment of copper anodic slimes has been investigated through the construction of potential-pH diagrams for Au-CS(NH2)(2)-H2O and Ag-CS(NH2)(2)-H2O systems. The effect of leach parameters such as thiourea and ferric-ion concentrations in the solution and level of the redox potential were considered. Optimum conditions for gold extraction of 99.8% are leach time of 1 h at the concentration of thiourea 10 g/L and concentration of ferric ion as oxidant 5.0 g/L. The redox potential connected with optimum leaching conditions was 500-523 mV (versus S.H.E.).

引用

页码：369 / 381

页数：13