Separation of cobalt, nickel, and copper metal using the mixture of HCl in ethylene glycol and Aliquat 336 in kerosene
The recovery of valuable metals such as Co, Cu, and Ni from spent lithium-ion batteries has attracted much attention due to environmental issues and economic values. Separation of these metals from the synthetic metallic mixtures was investigated by employing nonaqeous solvent. In this work, the mix...
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doaj-e327328c424d4d2baa07d72e125e2f2a2021-09-25T05:07:28ZengElsevierJournal of Materials Research and Technology2238-78542021-09-011423332344Separation of cobalt, nickel, and copper metal using the mixture of HCl in ethylene glycol and Aliquat 336 in keroseneThanh Tuan Tran0Yang Liu1Man Seung Lee2Department of Advanced Materials Science & Engineering, Institute of Rare Metal, Mokpo National University, Chonnam, 534-729, Republic of KoreaCollege of Environment and Safety Engineering, Qingdao University of Science and Technology, 53 Zhengzhou Road, Qingdao, 266042, ChinaDepartment of Advanced Materials Science & Engineering, Institute of Rare Metal, Mokpo National University, Chonnam, 534-729, Republic of Korea; Corresponding author.The recovery of valuable metals such as Co, Cu, and Ni from spent lithium-ion batteries has attracted much attention due to environmental issues and economic values. Separation of these metals from the synthetic metallic mixtures was investigated by employing nonaqeous solvent. In this work, the mixture of HCl in ethylene glycol (EG) and Aliquat 336 in kerosene was employed as nonaqeous solvents and the leaching conditions were optimized. Under the optimum condition, Ni was completely leached and remained in the EG phase with 99.8% purity. Meanwhile, the leaching percentage of Co(II) and Cu(II) was 62.3% and 18.3% and most of the two dissolved metal ions were extracted into Aliquat 336 phase. After complete stripping of Co(II) and Cu(II) from the loaded Aliquat 336 phase with 2.0 mol L−1 H2SO4, Cu(II) was selectively extracted over Co(II) by 0.1 mol L−1 Cynanex301 and then stripped by 50% aqua regia solution with >99.9% purity. The purity of Co(II) in the raffinate was 99.6%. Besides, Co from the leaching residue was selectively dissolved over Cu by 5.0 mol L−1 H2SO4 with 99.6% purity. A process was proposed for the separation of Co, Cu and Ni from metallic mixtures. The process showed some advantages in terms of the high purity of the metal solutions recovered and a decrease in the number of steps for the metal recovery. Thus, the application of this process to real operation can be considered.http://www.sciencedirect.com/science/article/pii/S2238785421008024Non-aqueous leachingCobaltNickelAlloysLithium-ion battery |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Thanh Tuan Tran Yang Liu Man Seung Lee |
spellingShingle |
Thanh Tuan Tran Yang Liu Man Seung Lee Separation of cobalt, nickel, and copper metal using the mixture of HCl in ethylene glycol and Aliquat 336 in kerosene Journal of Materials Research and Technology Non-aqueous leaching Cobalt Nickel Alloys Lithium-ion battery |
author_facet |
Thanh Tuan Tran Yang Liu Man Seung Lee |
author_sort |
Thanh Tuan Tran |
title |
Separation of cobalt, nickel, and copper metal using the mixture of HCl in ethylene glycol and Aliquat 336 in kerosene |
title_short |
Separation of cobalt, nickel, and copper metal using the mixture of HCl in ethylene glycol and Aliquat 336 in kerosene |
title_full |
Separation of cobalt, nickel, and copper metal using the mixture of HCl in ethylene glycol and Aliquat 336 in kerosene |
title_fullStr |
Separation of cobalt, nickel, and copper metal using the mixture of HCl in ethylene glycol and Aliquat 336 in kerosene |
title_full_unstemmed |
Separation of cobalt, nickel, and copper metal using the mixture of HCl in ethylene glycol and Aliquat 336 in kerosene |
title_sort |
separation of cobalt, nickel, and copper metal using the mixture of hcl in ethylene glycol and aliquat 336 in kerosene |
publisher |
Elsevier |
series |
Journal of Materials Research and Technology |
issn |
2238-7854 |
publishDate |
2021-09-01 |
description |
The recovery of valuable metals such as Co, Cu, and Ni from spent lithium-ion batteries has attracted much attention due to environmental issues and economic values. Separation of these metals from the synthetic metallic mixtures was investigated by employing nonaqeous solvent. In this work, the mixture of HCl in ethylene glycol (EG) and Aliquat 336 in kerosene was employed as nonaqeous solvents and the leaching conditions were optimized. Under the optimum condition, Ni was completely leached and remained in the EG phase with 99.8% purity. Meanwhile, the leaching percentage of Co(II) and Cu(II) was 62.3% and 18.3% and most of the two dissolved metal ions were extracted into Aliquat 336 phase. After complete stripping of Co(II) and Cu(II) from the loaded Aliquat 336 phase with 2.0 mol L−1 H2SO4, Cu(II) was selectively extracted over Co(II) by 0.1 mol L−1 Cynanex301 and then stripped by 50% aqua regia solution with >99.9% purity. The purity of Co(II) in the raffinate was 99.6%. Besides, Co from the leaching residue was selectively dissolved over Cu by 5.0 mol L−1 H2SO4 with 99.6% purity. A process was proposed for the separation of Co, Cu and Ni from metallic mixtures. The process showed some advantages in terms of the high purity of the metal solutions recovered and a decrease in the number of steps for the metal recovery. Thus, the application of this process to real operation can be considered. |
topic |
Non-aqueous leaching Cobalt Nickel Alloys Lithium-ion battery |
url |
http://www.sciencedirect.com/science/article/pii/S2238785421008024 |
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