Preparation of pure copper powder from acidic copper chloride waste etchant

被引:0
|
作者
Hong, H. S. [1 ]
Kong, M. S. [1 ]
Ghu, J. K. [2 ]
Lee, J. K. [3 ]
Suk, H. G. [4 ]
机构
[1] Inst Adv Engn, Plant Engn Ctr, Yongin 449863, South Korea
[2] Korea Polytech Univ, Dept Adv Mat Engn, Shihung 429793, South Korea
[3] Korea Inst Ind Technol, Nanosurface Treat Tech Team, Inchon 463130, South Korea
[4] Kangwon Natl Univ, Dept Mat & Met Engn, Samcheok 245711, South Korea
关键词
copper chloride liquid waste; printed circuit board (PCB); liquid waste; high purity copper powder;
D O I
暂无
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The method for the recycling of copper from copper chloride solution was developed. This process consists of extraction of copper, purification and particle size reduction. In the first step, reductive metal scraps were added to acidic copper chloride waste enchants produced in the PCB industry to obtain copper powder. Composition analysis showed that this powder contained impurities such as Fe, Ni, and water. So, drying and purification were carried out by using microwave and a centrifugal separator. Thereby the copper powder had a purity of higher than 99% and spherical form in morphology. The copper powder size was decreased by ball milling.
引用
收藏
页码:141 / 142
页数:2
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