High copper recovery from scrap printed circuit boards using poly(ethylene glycol)/sodium hydroxide treatment

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 固体废弃物处理与资源化实验室

	High copper recovery from scrap printed circuit boards using poly(ethylene glycol)/sodium hydroxide treatment
	Zhang, Cong-Cong; Zhang, Fu-Shen
刊名	ENVIRONMENTAL CHEMISTRY LETTERS
	2018-03-01
卷号	16 期号:1 页码:311-317
关键词	E-waste Printed circuit boards Separation Chemical recycling
ISSN号	1610-3653
文献子类	Article
英文摘要	Recycling scrap printed circuit boards for recovery of valuable metal resources is a major environmental issue. Most available disposal technologies are not environmentally safe. Here, printed circuit board particles were subjected to solvothermal treatment using poly(ethylene glycol)/sodium hydroxide. Results show that residual ratio of bromine varied with temperature, treating time and sodium hydroxide addition. The optimal temperature, treating time and sodium hydroxide addition were 180 A degrees C, 10 h and 0.4 g, with the lowest residual bromine ratio of 1.7%. After treatment, the separation of residue was done by gravity separation and the purity of copper in the recovered metallic components was 97.8%. The recyclability of scrap printed circuit boards before crushing was also compared, the residue of which yielded a complete separation of copper foils and glass fibers. The purity of copper in the foil was achieved at 96.6%. We conclude that this novel process represents an applicable way to recycle high value resources from scrap printed circuit boards.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/40851]
专题	生态环境研究中心_固体废弃物处理与资源化实验室
推荐引用方式 GB/T 7714	Zhang, Cong-Cong,Zhang, Fu-Shen. High copper recovery from scrap printed circuit boards using poly(ethylene glycol)/sodium hydroxide treatment[J]. ENVIRONMENTAL CHEMISTRY LETTERS,2018,16(1):311-317.
APA	Zhang, Cong-Cong,&Zhang, Fu-Shen.(2018).High copper recovery from scrap printed circuit boards using poly(ethylene glycol)/sodium hydroxide treatment.ENVIRONMENTAL CHEMISTRY LETTERS,16(1),311-317.
MLA	Zhang, Cong-Cong,et al."High copper recovery from scrap printed circuit boards using poly(ethylene glycol)/sodium hydroxide treatment".ENVIRONMENTAL CHEMISTRY LETTERS 16.1(2018):311-317.