ELECTRODIALYSIS OF COPPER-THIOUREA SOLUTIONS

被引：11

作者：

AKRETCHE, DE ^{[1
]}

KERDJOUDJ, H ^{[1
]}

GAVACH, C ^{[1
]}

机构：

[1] LAB PHYS CHEM POLYPHAS SYST,CNRS,URA 330,BP 5051,F-34033 MONTPELLIER,FRANCE

来源：

HYDROMETALLURGY | 1993年 / 34卷 / 02期

关键词：

D O I：

10.1016/0304-386X(93)90037-E

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Thiourea is used as a complexing agent for the treatment of precious metal ores and manufacturing and thiourea is sometimes present in aqueous solutions containing copper ions. The purpose of this work is to determine if electrodialysis can be used for the recovery of Cu2+ ions from solutions containing thiourea. The solutions studied contained sodium and copper ions as well as thiourea. The transmembrane fluxes of Na+ and Cu2+ are measured under a constant current. For the transport of the two cations, the current efficiency is decreased when thiourea is present in the solution. This is due to the formation of Cu (I) thiourea complexes, which create several positively charged species as a product of thiourea oxidation and which remain irreversibly bound inside the membrane material.

引用

页码：231 / 238

页数：8

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