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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 Bin1,2; He Jie1,2; Sun Xiaojun1,2; Zhao Jiuzhou1,2; Jiang Hongxiang1; Zhang Lili1; Hao Hongri1
Corresponding AuthorHe Jie(jiehe@imr.ac.cn)
2019-06-11
Source PublicationACTA METALLURGICA SINICA
ISSN0412-1961
Volume55Issue:6Pages:751-761
AbstractThe 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.
Keywordimmiscible alloy Fe-Cu-Pb alloy liquid-liquid phase separation waste printed circuit board metal separation and recycling
Funding OrganizationNational Natural Science Foundation of China ; Key Project of Innovation Foundation of IMR-CAS ; Natural Science Foundation of Liaoning Province
DOI10.11900/0412.1961.2018.00486
Indexed BySCI
Language英语
Funding ProjectNational 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 Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000468415300008
PublisherSCIENCE PRESS
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/133298
Collection中国科学院金属研究所
Corresponding AuthorHe Jie
Affiliation1.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
Recommended Citation
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.
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