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Metal recycling from waste memory modules efficiently and environmentally friendly by low-temperature alkali melts
Zhu, MingWei1; Ma, HaoBo1,2; He, Jie2; Chen, Bin2; Zhang, LiLi2; Jiang, HongXiang2; Sun, XiaoJun2; Zhao, JiuZhou2
Corresponding AuthorHe, Jie(jiehe@imr.ac.cn)
2020-08-07
Source PublicationSCIENCE CHINA-TECHNOLOGICAL SCIENCES
ISSN1674-7321
Pages8
AbstractRecycling of waste electrical and electronic equipment has become an urgent global issue in recent years from the prospectives of resources recycling and environmental protection. In the present work, the recycling of waste memory modules (WMMs) through low-temperature alkali melts was investigated, based on the thermodynamic analysis of the nonmetallic reactions of brominated epoxy resin, glass fiber and memory chip with the molten mixed alkali. The effects of the reaction temperature and the ratio of alkali mixture on the removal rate of nonmetallic parts in WMMs were discussed under the condition of air atmosphere. The optimum process parameters were further confirmed by in-situ monitoring of the temperature during the whole reaction process. The mixtures with Cu, Fe and Ni as the main components were obtained after the treatment of WMMs in the molten alkali. These mixed metals were further separated into copper-rich and ferronickel-rich metals by physical magnetic separation. Moreover, the precious metals Au and Ag were enriched in Cu-rich alloys. This work provided an efficient and environment-friendly method for metal recycling from WMMs.
Keywordmetal recycling waste memory module molten alkali precious metal
Funding OrganizationNational Natural Science Foundation of China ; Liaoning Provincial Department of Education ; Natural Science Foundation of Liaoning Province of China ; Key Project of Innovation Foundation of IMR-CAS
DOI10.1007/s11431-020-1624-8
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51974288] ; National Natural Science Foundation of China[51574216] ; National Natural Science Foundation of China[51774264] ; National Natural Science Foundation of China[51901231] ; Liaoning Provincial Department of Education[JYT19063] ; Natural Science Foundation of Liaoning Province of China[2019-MS-332] ; Key Project of Innovation Foundation of IMR-CAS[SCJJ-2013-ZD-03]
WOS Research AreaEngineering ; Materials Science
WOS SubjectEngineering, Multidisciplinary ; Materials Science, Multidisciplinary
WOS IDWOS:000559293600001
PublisherSCIENCE PRESS
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/140238
Collection中国科学院金属研究所
Corresponding AuthorHe, Jie
Affiliation1.Shenyang Aerosp Univ, Sch Mat Sci & Engn, Shenyang 110136, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Zhu, MingWei,Ma, HaoBo,He, Jie,et al. Metal recycling from waste memory modules efficiently and environmentally friendly by low-temperature alkali melts[J]. SCIENCE CHINA-TECHNOLOGICAL SCIENCES,2020:8.
APA Zhu, MingWei.,Ma, HaoBo.,He, Jie.,Chen, Bin.,Zhang, LiLi.,...&Zhao, JiuZhou.(2020).Metal recycling from waste memory modules efficiently and environmentally friendly by low-temperature alkali melts.SCIENCE CHINA-TECHNOLOGICAL SCIENCES,8.
MLA Zhu, MingWei,et al."Metal recycling from waste memory modules efficiently and environmentally friendly by low-temperature alkali melts".SCIENCE CHINA-TECHNOLOGICAL SCIENCES (2020):8.
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