Selective extraction of nickel from acid leach solution of spent lithium-ion batteries using synergistic solvent extraction system consisting of TFCA-4PC

被引：5

作者：

Zhang, Li-han ^{[1
,2
]}

Cao, Zuo-ying ^{[1
,2
]}

Zhang, Gui-qing ^{[1
,2
]}

Li, Qing-gang ^{[1
,2
]}

Wang, Ming-yu ^{[1
,2
]}

Guan, Wen-juan ^{[1
,2
]}

Wu, Sheng-xi ^{[1
,2
]}

Deng, Qi ^{[3
,4
]}

机构：

[1] Cent South Univ, Sch Met & Environm, Changsha 410083, Peoples R China

[2] Cent South Univ, Key Lab Met Separat Sci & Engn Nonferrous Ind, Changsha 410083, Peoples R China

[3] Hunan Acad Forestry, State Key Lab Utilizat Woody Oil Resource, Changsha 410018, Peoples R China

[4] Hunan Acad Forestry, Hunan Prov Key Lab Oils & Fats Mol Struct & Funct, Changsha 410018, Peoples R China

来源：

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2024年 / 34卷 / 04期

基金：

中国国家自然科学基金;

关键词：

tung oil; carboxylic acid extractant; synergistic solvent extraction; nickel; extraction mechanism; VERSATIC; 10; ACID; COBALT; SEPARATION; PERFORMANCE; MANGANESE; RECOVERY;

D O I：

10.1016/S1003-6326(24)66473-3

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

A synergistic solvent extraction (SSX) system consisting of tung oil-based carboxylic acid (TFCA) and isonicotinic acid ester (4PC) was proposed to selectively extract Ni over Li and Mg from acid leach solutions of spent lithium-ion batteries (LIBs). The SSX system indicates a synergistic effect of Ni which can be mainly attributed to the multiple chelate ring structure formed between TFCA and Ni, therefore resulting in strong selectivity of Ni. With optimal conditions, the extraction of Ni reaches 97.3% in a single stage, while the extractions of Mg and Li are nil and 2.29%, respectively. Further, after scrubbing with 300 mg/L NiSO4, 4 , the loaded organic solution is stripped using 0.2 mol/L H2SO4. 2 SO 4 . The strip liquor containing 11.52 g/L Ni and only less than 6 mg/L Li is obtained.

引用

页码：1311 / 1320

页数：10

共 31 条

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