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Sulfuric acid leaching of ball-milling activated FePO4 residue after lithium extraction from spent lithium iron phosphate cathode powder

文献类型：期刊论文

作者Wang, Xiao-jian1,2; Zheng, Shi-li1,3; Zhang, Ying1; Zhang, Yang1; Qiao, Shan1; Long, Zhi-qi4; Zhao, Bo5; Li, Zhe-fei5
刊名WASTE MANAGEMENT
出版日期2022-11-01
卷号153页码:31-40
ISSN号0956-053X
关键词Mechanical-chemical process The iron phosphate residue The spent lithium iron phosphate Ball-milling Sulfuric acid leaching
DOI10.1016/j.wasman.2022.08.009
英文摘要A mechanical-chemical process is proposed to recover the iron phosphate residue(IPR)of spent lithium iron phosphate(LFP)after lithium extraction. In this process, the IPR was pretreated by ball-milling and leached with the sulfuric acid solution. The results showed that, under the optimized ball-milling conditions (a mass ratio of the stainless-steel-ball to material to water of 2:1:2.5, a milling time of 20 min), the maximum particle size of IPR decreased from 34.265 um to 13.102 um, the specific surface increased from 11.41 m2/g to 13.74 m2/g, and the cell volume distortion rate could reach 0.331 %. Under the optimized leaching conditions (a temperature of 333 K, a concentrated acid-to-material ratio of 0.46 mL/g, a liquid-to-solid ratio of 5:1 mL/g, and a stirring speed of 600 rpm), the leaching efficiency of iron phosphate could reach 98 %. The kinetic study indicated that the leaching was controlled by diffusion and chemical reaction with the apparent activation energy of 29 kJ/mol. The dissolution-precipitation phase transition of IPR was also found at high temperatures. This study illustrates that such a mechanical-chemical process is an effective way to improve the leaching efficiency of IPR with a lower sulfuric acid dosage, which has great potential in industrial applications.
WOS关键词ION BATTERIES ; ORGANIC-ACIDS ; LIFEPO4 ; OPTIMIZATION ; REGENERATION ; RECOVERY
资助项目Key Research Program of the Chinese Academy of Sciences[ZDRW_CN_2020-1] ; Innovation Academy for Green Manufacture, Chinese Academy of Sciences[IAGM2020DB10] ; Innovation Academy for Green Manufacture, Chinese Academy of Sciences[IAGM-2019-A15] ; Youth Innovation Promotion Association CAS[2018065]
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:000858990800001
资助机构Key Research Program of the Chinese Academy of Sciences ; Innovation Academy for Green Manufacture, Chinese Academy of Sciences ; Youth Innovation Promotion Association CAS
源URL[http://ir.ipe.ac.cn/handle/122111/54707]  
专题中国科学院过程工程研究所
通讯作者Zheng, Shi-li; Zhang, Ying
作者单位1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Res Ctr Green Recycling Strateg Met Reso, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing 100190, Peoples R China
4.Grinm Grp Corp Ltd, Beijing 100088, Peoples R China
5.Zhejiang Tuna Environm Sci & Technol Corp Ltd, Shaoxing 312000, Zhejiang, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Xiao-jian,Zheng, Shi-li,Zhang, Ying,et al. Sulfuric acid leaching of ball-milling activated FePO4 residue after lithium extraction from spent lithium iron phosphate cathode powder[J]. WASTE MANAGEMENT,2022,153:31-40.
APA Wang, Xiao-jian.,Zheng, Shi-li.,Zhang, Ying.,Zhang, Yang.,Qiao, Shan.,...&Li, Zhe-fei.(2022).Sulfuric acid leaching of ball-milling activated FePO4 residue after lithium extraction from spent lithium iron phosphate cathode powder.WASTE MANAGEMENT,153,31-40.
MLA Wang, Xiao-jian,et al."Sulfuric acid leaching of ball-milling activated FePO4 residue after lithium extraction from spent lithium iron phosphate cathode powder".WASTE MANAGEMENT 153(2022):31-40.

入库方式： OAI收割

来源：过程工程研究所

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