Lithium recovery from effluent of spent lithium battery recycling process using solvent extraction

doi:10.1016/j.jhazmat.2020.122840

	Lithium recovery from effluent of spent lithium battery recycling process using solvent extraction
	Zhang, Licheng; Li Lijuan; Rui, Hongming; Shi, Dong; Peng, Xiaowu; Ji, Lianmin; Song, Xuexue
第一作者	Zhang, Licheng
	2020-11-05
发表期刊	JOURNAL OF HAZARDOUS MATERIALS
ISSN	0304-3894
卷号	398
摘要	A novel process of lithium recovery from effluent of spent lithium batteries recycling by solvent extraction was proposed. The beta-diketone extraction system used in the experiment was composed of benzoyltrifluoroacetone (HBTA), trioctylphosphine oxide (TOPO) and kerosene. The effective parameters such as solution pH value, saponification degree, initial lithium concentration and phase ratio were evaluated by experiments. More than 90% of lithium could be extracted by saponified organic phase through three-stage countercurrent extraction. The loaded organic phase was first eluted by dilute HCl solution to remove nontarget sodium, and then stripped by 6 mol/L HCl at a large phase ratio to obtain lithium-rich solution with 4.322 mol/L lithium. The lithium-rich solution from the process could be used to prepare lithium carbonate or lithium chloride. The stripped organic phase can be recycled and no crud or emulsification was observed during the process. The extraction mechanism of HBTA-TOPO was investigated via FT-IR spectroscopy, and the results indicated the two extractants showed strong synergistic effect. The thermodynamic study revealed lithium extraction is an exothermic process, which meant lower temperature promotes extraction of lithium. This work provided a novel approach to recover lithium from effluent of spent lithium battery recycling.
DOI	10.1016/j.jhazmat.2020.122840
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/33965
专题	盐湖资源综合利用工程技术中心中国科学院青海盐湖研究所
推荐引用方式 GB/T 7714	Zhang, Licheng,Li Lijuan,Rui, Hongming,et al. Lithium recovery from effluent of spent lithium battery recycling process using solvent extraction[J]. JOURNAL OF HAZARDOUS MATERIALS,2020,398.
APA	Zhang, Licheng.,Li Lijuan.,Rui, Hongming.,Shi, Dong.,Peng, Xiaowu.,...&Song, Xuexue.(2020).Lithium recovery from effluent of spent lithium battery recycling process using solvent extraction.JOURNAL OF HAZARDOUS MATERIALS,398.
MLA	Zhang, Licheng,et al."Lithium recovery from effluent of spent lithium battery recycling process using solvent extraction".JOURNAL OF HAZARDOUS MATERIALS 398(2020).

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