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Separation of Co(II) Over Ni(II) from Chloride Leached Solution of Spent Li-Ion Batteries Using Cyphos IL104
- Ilyas, Sadia;
- Kim, Hyunjung;
- Srivastava, Rajiv Ranjan
Citations
SCOPUS
0초록
The hydrometallurgical separation of cobalt and nickel was achieved from HCl leached solution of spent Li-ion batteries, while applying Cyphos IL104 as a potential extractant. Cobalt extraction significantly increases with increasing Cyphos IL104 and Cl− ion concentrations, and equilibrium pH (pHeq). Under the optimized condition of 0.8 mol·L−1 Cyphos IL104, 3.0 mol·L−1 Cl− ions, pHeq value 5.0, and O/A ratio of 2/3 could extract >99% Co with only 3% Ni into the organic phase. The back-extraction of cobalt performed with 2.0 mol·L−1 H2SO4 solution yielded 99.95% stripping efficiency and was crystallized to obtain high-pure CoSO4.xH2O crystals.
키워드
Hydrometallurgical recycling; Ionic liquid; Li-ion batteries; Chlorine compounds; Cobalt compounds; Extraction; Hydrometallurgy; Ions; Leaching; Lithium compounds; Lithium-ion batteries; Nickel compounds; Recycling; Back extraction; Cl- ions; Cobalt and nickels; Cobalt extraction; Extractants; Hydrometallurgical recycling; Ion concentrations; Ion equilibrium; Optimized conditions; Organic phase; Ionic liquids
- 제목
- Separation of Co(II) Over Ni(II) from Chloride Leached Solution of Spent Li-Ion Batteries Using Cyphos IL104
- 저자
- Ilyas, Sadia; Kim, Hyunjung; Srivastava, Rajiv Ranjan
- 발행일
- 2023-02
- 유형
- Conference paper
- 페이지
- 107 ~ 116