Electro-generated chlorine leaching of valuable metals from electronic scrap

被引：0

作者：

Kim, MS ^{[1
]}

Lee, JC ^{[1
]}

Jeoung, JK ^{[1
]}

Kim, BS ^{[1
]}

Kim, EY ^{[1
]}

机构：

[1] Korea Inst Geosci & Mineral Resources, Taejon 305350, South Korea

来源：

Proceedings of the 8th International Symposium on East Asian Resources Recycling Technology-2005: RESOURCES RECYCLING TECHNOLOGY-2005 | 2005年

关键词：

electro-generation; chlorine; electronic scrap; leaching; copper;

D O I：

暂无

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Electro-generated chlorine leaching of electronic scrap, such as waste printed circuit boards, was investigated in hydrochloric acid solutions., The sample, non-magnetic. component of pulverized printed circuit board, contained about 45 % of metal component, in which copper was about 83.6 %. The leaching rate of copper was greatly affected by current density and agitation speed. Increasing agitation and lowering current density enhanced utilization efficiency of electro-generated chlorine for copper leaching., The leaching of copper up to 98 % was achieved at 20 mA/ cm(2) 50 degrees C, 180 minutes, and 600 rpm in 1 M HCl solutions.

引用

页码：356 / 358

页数：3