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Environmentally benign process for selective recovery of valuable metals from spent lithium-ion batteries by using conventional sulfation roasting

文献类型：期刊论文

作者Lin, Jiao1,2; Liu, Chunwei1; Cao, Hongbin1; Chen, Renjie2; Yang, Yongxia1; Li, Li2; Sun, Zhi1,2
刊名GREEN CHEMISTRY
出版日期2019-11-07
卷号21期号:21页码:5904-5913
ISSN号1463-9262
DOI10.1039/c9gc01350d
英文摘要Recycling of spent lithium-ion batteries (LIBs) has attracted intensive attention owing to their potential environmental risk and the importance of the supply of critical metals. Sulfation roasting as a traditional technology is not considered environmentally friendly due to serious SOx emission. The usage of over-stoichiometric amounts of sodium salt results in high sodium content in the leaching solutions bringing about difficulties for the preparation of qualified lithium products. It is usually not easy to achieve high recovery selectivity of metals. Herein, we find it is possible to eliminate secondary emission and no sodium is included in the process of spent LIB (LiCoO2 as a case study) recycling if the transfer pathway of sulfur among different phases is well controlled. At the same time, high lithium recovery selectivity is achieved. The principles of green chemistry for substitution of chemicals with a low environmental impact and improving the atomic efficiency of sulfur are introduced during traditional sulfation roasting. A pretreatment step of aging with sulfuric acid at 393 K is introduced to form cobalt sulfate which in the following heat treatment step will further preferentially react with the remaining LiCoO2 until it is completely consumed. By controlling the amount of sulfuric acid, sulfur can be recirculated and recycled thoroughly in the form of SO42-, instead of SOx emission and the atomic efficiency of sulfur can be highly improved. After leaching with water, the concentration of Li+ in the leachate reaches 19.82 g L-1; 99.3% lithium and 98.7% cobalt were recuperated as Li2CO3 and Co3O4 with a purity of 99.89% and 99.95%, respectively. Our findings propose an environmentally benign and easily implemented strategy for selective recycling of spent LIBs. The fundamentals provide inspiration for separation and extraction fields such as mining and recycling of complex systems composed of multiple metals.
WOS关键词CATHODE MATERIALS ; LICOO2 ; SEPARATION ; COBALT ; LI ; ACID ; CARBONATE ; MANGANESE ; REAGENTS ; DIVALENT
资助项目National Key Research and Development Program of China[2017YFB0403300/2017YFB0403305] ; National Natural Science Foundation of China[51425405] ; National Natural Science Foundation of China[51874269] ; Key Program of Chinese Academy of Sciences[KFZD-SW-315] ; China Postdoctoral Science Foundation[2018M631579] ; 1000 Talents Program of China
WOS研究方向Chemistry ; Science & Technology - Other Topics
语种英语
WOS记录号WOS:000493077100012
出版者ROYAL SOC CHEMISTRY
资助机构National Key Research and Development Program of China ; National Natural Science Foundation of China ; Key Program of Chinese Academy of Sciences ; China Postdoctoral Science Foundation ; 1000 Talents Program of China
源URL[http://ir.ipe.ac.cn/handle/122111/38990]  
专题中国科学院过程工程研究所
通讯作者Li, Li; Sun, Zhi
作者单位1.Chinese Acad Sci, Beijing Engn Res Ctr Proc Pollut Control, Div Environm Technol & Engn, Inst Proc Engn, Beijing 100190, Peoples R China
2.Beijing Inst Technol, Sch Mat Sci & Engn, Beijing 100081, Peoples R China
推荐引用方式
GB/T 7714		 Lin, Jiao,Liu, Chunwei,Cao, Hongbin,et al. Environmentally benign process for selective recovery of valuable metals from spent lithium-ion batteries by using conventional sulfation roasting[J]. GREEN CHEMISTRY,2019,21(21):5904-5913.
APA Lin, Jiao.,Liu, Chunwei.,Cao, Hongbin.,Chen, Renjie.,Yang, Yongxia.,...&Sun, Zhi.(2019).Environmentally benign process for selective recovery of valuable metals from spent lithium-ion batteries by using conventional sulfation roasting.GREEN CHEMISTRY,21(21),5904-5913.
MLA Lin, Jiao,et al."Environmentally benign process for selective recovery of valuable metals from spent lithium-ion batteries by using conventional sulfation roasting".GREEN CHEMISTRY 21.21(2019):5904-5913.

入库方式： OAI收割

来源：过程工程研究所

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