Copper leaching from waste printed circuit boards using typical acidic ionic liquids recovery of e-wastes' surplus value

doi:10.1016/j.wasman.2018.05.036

	Copper leaching from waste printed circuit boards using typical acidic ionic liquids recovery of e-wastes' surplus value
	Zhang, Ding-jun; Dong, Li; Li, Yong-tong; Wu, Yanfei; Ma, Ying-xia; Yang, Bin
刊名	WASTE MANAGEMENT
	2018-08
卷号	78 页码:191-197
关键词	WPCBs Copper recovery Leaching rate Ionic liquids 1-Carboxymethy1-3-methylimidazolium bisulfate ([CM-MIM][HSO4]) Hydrometallurgical separation
ISSN号	0956-053X
DOI	10.1016/j.wasman.2018.05.036
英文摘要	In this study, using several types of acidic ionic liquids as the leaching reagents, the leaching behaviors of the copper present in waste printed circuit boards (WPCBs) were investigated. The effects of various parameters on the copper leaching rate were studied, such as the particle size of the shredded WPCB, type of ionic liquid used, hydrogen peroxide dosage, solid-to-liquid ratio, leaching temperature, and leaching time. The experimental results showed that the copper leaching rate increases continuously when the powder particle size is increased from 0.071 to 0.500 mm. Moreover, the copper leaching rate also increases with an increase in the leaching temperature. In contrast, the leaching rate first increases and then decreases with increases in the leaching time, hydrogen peroxide dosage, and solid-to-liquid ratio. The optimal conditions that provided a 98.31% copper leaching rate were: particle size >0.500 mm, 8.5 mL 90% (v/v) ionic liquid, 1.5 mL 30% hydrogen peroxide, solid-to-liquid ratio of 1/20, leaching temperature of 80 degrees C, and leaching time of 2 h. (C) 2018 Elsevier Ltd. All rights reserved.
资助项目	National Natural Science Foundation of China (NSFC)[51663013]
WOS研究方向	Engineering ; Environmental Sciences & Ecology
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000444660600021
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/32523]
专题	材料科学与工程学院省部共建有色金属先进加工与再利用国家重点实验室
通讯作者	Zhang, Ding-jun
作者单位	Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Ding-jun,Dong, Li,Li, Yong-tong,et al. Copper leaching from waste printed circuit boards using typical acidic ionic liquids recovery of e-wastes' surplus value[J]. WASTE MANAGEMENT,2018,78:191-197.
APA	Zhang, Ding-jun,Dong, Li,Li, Yong-tong,Wu, Yanfei,Ma, Ying-xia,&Yang, Bin.(2018).Copper leaching from waste printed circuit boards using typical acidic ionic liquids recovery of e-wastes' surplus value.WASTE MANAGEMENT,78,191-197.
MLA	Zhang, Ding-jun,et al."Copper leaching from waste printed circuit boards using typical acidic ionic liquids recovery of e-wastes' surplus value".WASTE MANAGEMENT 78(2018):191-197.