Liquid-Liquid Phase Separation of Fe-Cu-Pb Alloy and Its Application in Metal Separation and Recycling of Waste Printed Circuit Boards

doi:10.11900/0412.1961.2018.00486

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	Liquid-Liquid Phase Separation of Fe-Cu-Pb Alloy and Its Application in Metal Separation and Recycling of Waste Printed Circuit Boards
	Chen Bin 1,2; He Jie 1,2; Sun Xiaojun 1,2; Zhao Jiuzhou 1,2; Jiang Hongxiang 1; Zhang Lili 1; Hao Hongri 1
刊名	ACTA METALLURGICA SINICA
	2019-06-11
卷号	55 期号:6 页码:751-761
关键词	immiscible alloy Fe-Cu-Pb alloy liquid-liquid phase separation waste printed circuit board metal separation and recycling
ISSN号	0412-1961
DOI	10.11900/0412.1961.2018.00486
通讯作者	He Jie(jiehe@imr.ac.cn)
英文摘要	The pyrolysis processing was carried out on the waste printed circuit boards (WPCBs) of mobile phones to dissociate metals from non-metals and obtain mixed metals with Fe, Cu and Pb as main components. Based on the main compositions of Fe, Cu and Pb, the liquid-liquid phase separation behavior of (Fe0.4Cu0.6)(100-x)Pb-x ternary alloy has been studied experimentally. The results show that the liquid-liquid phase separation of L -> L(Fe)+L(Cu, Pb) may occur during the ternary Fe-Cu-Pb alloy melt cooling in the miscibility gap. After the liquid L(Fe) solidified, the secondary liquid-liquid phase separation L(Cu, Pb)-> L(Cu)+L(Pb) takes place in the residual L(Cu, Pb) liquid phase, finally resulting in a three-zone separation structure. On the basis of the behavior of the liquid-liquid phase separation, a self-organized hierarchical separation system has been designed to separate and recycle these mixed metals from WPCBs. The enrichment behavior of the minor components like Cr, Au and Cd in the separation system was explored. The effect of super-gravity level on the metal separation and recycling rates has been discussed. As a result, a new harmless route has been established to recycle metal resources in WPCBs.
资助项目	National Natural Science Foundation of China[51574216] ; National Natural Science Foundation of China[51774264] ; National Natural Science Foundation of China[513741947] ; Key Project of Innovation Foundation of IMR-CAS[SCJJ-2013-ZD-03] ; Natural Science Foundation of Liaoning Province[2015020172]
WOS研究方向	Metallurgy & Metallurgical Engineering
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000468415300008
资助机构	National Natural Science Foundation of China ; Key Project of Innovation Foundation of IMR-CAS ; Natural Science Foundation of Liaoning Province
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/133297]
专题	金属研究所_中国科学院金属研究所
通讯作者	He Jie
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
推荐引用方式 GB/T 7714	Chen Bin,He Jie,Sun Xiaojun,et al. Liquid-Liquid Phase Separation of Fe-Cu-Pb Alloy and Its Application in Metal Separation and Recycling of Waste Printed Circuit Boards[J]. ACTA METALLURGICA SINICA,2019,55(6):751-761.
APA	Chen Bin.,He Jie.,Sun Xiaojun.,Zhao Jiuzhou.,Jiang Hongxiang.,...&Hao Hongri.(2019).Liquid-Liquid Phase Separation of Fe-Cu-Pb Alloy and Its Application in Metal Separation and Recycling of Waste Printed Circuit Boards.ACTA METALLURGICA SINICA,55(6),751-761.
MLA	Chen Bin,et al."Liquid-Liquid Phase Separation of Fe-Cu-Pb Alloy and Its Application in Metal Separation and Recycling of Waste Printed Circuit Boards".ACTA METALLURGICA SINICA 55.6(2019):751-761.