Improved recovery of lithium from spent lithium-ion batteries by reduction roasting and NaHCO3 leaching

被引：6

作者：

Liu, Wenke ^{[1
,2
]}

Qin, Qingwei ^{[1
]}

Zhang, Hailin ^{[2
]}

Zhao, Wei ^{[2
]}

Chen, Xing ^{[2
]}

Xiong, Jiachun ^{[3
]}

Han, Yunwu ^{[1
,3
]}

Zheng, Shili ^{[2
]}

Zhang, Chunguang ^{[4
]}

Li, Guangqiang ^{[1
]}

Li, Ping ^{[2
,3
]}

机构：

[1] Wuhan Univ Sci & Technol, State Key Lab Refractories & Met, State Environm Protect Key Lab Mineral Met Resourc, 947 Heping Ave, Wuhan 430081, Hubei, Peoples R China

[2] Chinese Acad Sci, Inst Proc Engn, Natl Engn Res Ctr Green Recycling Strateg Met Reso, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China

[3] Chinese Acad Sci, Ganjiang Innovat Acad, Jiangxi Prov Key Lab Cleaner Prod Rare Earths, 1 Kexueyuan Rd, Ganzhou 341100, Jiangxi, Peoples R China

[4] CNPC Petrochem Res Inst, 7 Kunlun Rd, Beijing 102206, Peoples R China

来源：

WASTE MANAGEMENT | 2024年 / 187卷

基金：

中国国家自然科学基金;

关键词：

SpentLiNixCoyMn1_x_yO2 powder; Lithium recovery; Reduction roasting; NaHCO3; leaching; Recycling; CATHODE MATERIALS; VALUABLE METALS; COBALT; NICKEL; SEPARATION; OXIDES; POLYMER; LIALO2; XPS;

D O I：

10.1016/j.wasman.2024.07.011

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Lithium supply risk is increasing and driving rapid progress in lithium recovery schemes from spent lithium-ion batteries (LIBs). In this study, a facile recycling process consisting mainly of reduction roasting and NaHCO3 leaching was adopted to improve lithium recovery. The Li of spent LiNixCoyMn1_x_yO2 powder were converted to Li2CO3 and LiAlO2 with the reduction effect of C and residual Al in the roasting process. NaHCO3 leaching was utilized to selectively dissolve lithium from Li2CO3 and water-insoluble LiAlO2. The activation energy of NaHCO3 leaching was 9.31 kJ center dot mol_1 and the leaching of lithium was a diffusion control reaction. More than 95.19 % lithium was leached and recovered as a Li2CO3 product with a purity of 99.80 %. Thus, this approach provides a green path to selective recovery of lithium with good economics.

引用

页码：119 / 127

页数：9

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