Liquid-liquid hierarchical separation and metal recycling of waste printed circuit boards

doi:10.1016/j.jhazmat.2018.10.022

IMR OpenIR

	Liquid-liquid hierarchical separation and metal recycling of waste printed circuit boards
	Chen, Bin 1,2; He, Jie 1; Xi, Yaoyao 1; Zeng, Xiangfeng 3; Kaban, Ivan 4; Zhao, Jiuzhou 1; Hao, Hongri 1
通讯作者	He, Jie(jiehe@imr.ac.cn) ; Zhao, Jiuzhou(jzzhao@imr.ac.cn)
	2019-02-15
发表期刊	JOURNAL OF HAZARDOUS MATERIALS
ISSN	0304-3894
卷号	364 页码:388-395
摘要	Waste electrical and electronic equipment is rapidly increasing worldwide, resulting in a large quantity of waste printed circuit boards (WPCBs). There is a great challenge on how to efficiently separate mixed metals in WPCBs, which consists of more than 10 elements including hazardous Cr, Pb and Cd. In this work, based on atomic interactions, a method of liquid-liquid hierarchical separation is developed to separate the mixed metals dissociated from the pyrolyzed WPCBs of mobile phones. The hierarchical separation of L -> LFe-rich + L-cu,L-Pb-rich, L-Cu,L-Pb-rich -> Lcu-rich + Lpb-rich and Lpb-rich -> SCu-dendritical + Lpb-rich produces four immiscible Fe-rich, Cu-rich, Cu-dendritical and Pb-rich substances. The separation rate between these substances can reach more than 96% in a super-gravity field of G = 1000g. Other metals selectively distribute in the four substances. The Fe-rich substance collects Cr, Co, Ni and Si. Almost all of Au and Ag are trapped in the Cu-rich and Cu-dendritical substances. The low-melting-point metals, i.e. Bi, Cd, In and Sn, are located in the Pb-rich substance. This work provides a green shortcut for efficiently separating and recycling overall metals in WPCBs.
关键词	Waste printed circuit boards Metal recycling Liquid-liquid phase separation Immiscible alloys Super-gravity technology Pyrolysis
资助者	National Nature Science Foundation of China ; key project of innovation foundation of IMR-CAS ; Alexander von Humboldt-Stiftung ; Natural Science Foundation of Liaoning Province of China
DOI	10.1016/j.jhazmat.2018.10.022
收录类别	SCI
语种	英语
资助项目	National Nature Science Foundation of China[51574216] ; National Nature Science Foundation of China[51774264] ; National Nature Science Foundation of China[513741947] ; National Nature Science Foundation of China[51771210] ; key project of innovation foundation of IMR-CAS[SCJJ-2013-ZD-03] ; Alexander von Humboldt-Stiftung ; Natural Science Foundation of Liaoning Province of China[2015020172]
WOS研究方向	Engineering ; Environmental Sciences & Ecology
WOS类目	Engineering, Environmental ; Environmental Sciences
WOS记录号	WOS:000452926500043
出版者	ELSEVIER SCIENCE BV
引用统计	被引频次：33[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/130679
专题	中国科学院金属研究所
通讯作者	He, Jie; Zhao, Jiuzhou
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China 3.Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Liaoning, Peoples R China 4.IFW Dresden, Inst Complex Mat, Helmholtzstr 20, D-01069 Dresden, Germany
推荐引用方式 GB/T 7714	Chen, Bin,He, Jie,Xi, Yaoyao,et al. Liquid-liquid hierarchical separation and metal recycling of waste printed circuit boards[J]. JOURNAL OF HAZARDOUS MATERIALS,2019,364:388-395.
APA	Chen, Bin.,He, Jie.,Xi, Yaoyao.,Zeng, Xiangfeng.,Kaban, Ivan.,...&Hao, Hongri.(2019).Liquid-liquid hierarchical separation and metal recycling of waste printed circuit boards.JOURNAL OF HAZARDOUS MATERIALS,364,388-395.
MLA	Chen, Bin,et al."Liquid-liquid hierarchical separation and metal recycling of waste printed circuit boards".JOURNAL OF HAZARDOUS MATERIALS 364(2019):388-395.