Metal recycling from waste memory modules efficiently and environmentally friendly by low-temperature alkali melts

doi:10.1007/s11431-020-1624-8

CORC > 金属研究所 > 中国科学院金属研究所

	Metal recycling from waste memory modules efficiently and environmentally friendly by low-temperature alkali melts
	Zhu, MingWei 1; Ma, HaoBo 1,2; He, Jie 2; Chen, Bin 2; Zhang, LiLi 2; Jiang, HongXiang 2; Sun, XiaoJun 2; Zhao, JiuZhou 2
刊名	SCIENCE CHINA-TECHNOLOGICAL SCIENCES
	2020-08-07
页码	8
关键词	metal recycling waste memory module molten alkali precious metal
ISSN号	1674-7321
DOI	10.1007/s11431-020-1624-8
通讯作者	He, Jie(jiehe@imr.ac.cn)
英文摘要	Recycling 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.
资助项目	National 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研究方向	Engineering ; Materials Science
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000559293600001
资助机构	National 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
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/140234]
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.Shenyang Aerosp Univ, Sch Mat Sci & Engn, Shenyang 110136, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 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.