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A Study on the Treatment and Recovery of Sodium Sulfate (Na<sub>2</sub>SO<sub>4</sub>) Generated When Recovering Valuable Metals (Ni, Co, Mn, Li) from Waste Lithium Ion Batteries(LIBs)
폐리튬배터리(LIBs)에서 유가금속(Ni, Co, Mn, Li) 회수 시 발생하는 황산나트륨의 처리 및 회수 연구
Yeonchul Cho, Minhyuk Seo, Youngjae Lee, Jaewoo Ahn
조연철, 서민혁, 이영재, 안재우
Korean J. Met. Mater. 2024;62(4):275-283.   Published online 2024 Mar 29
DOI: https://doi.org/10.3365/KJMM.2024.62.4.275

Abstract
Concerns have arisen regarding the high concentrations of sodium sulfate in wastewater resulting from the waste Li-ion battery wet recycling process. In addressing this issue, Bipolar electrodialysis was employed to desalinate high-concentration sodium sulfate and recover it as sulfuric acid and sodium hydroxide. The investigation encompassed various experimental variables, such..... More

                
A Study on Lithium Hydroxide Recovery Using Bipolar Membrane Electrodialysis
바이폴라 전기투석을 이용한 수산화리튬 회수에 관한 기초 연구
Yeonchul Cho, Kihun Kim, Jaewoo Ahn, Jaeheon Lee
조연철, 김기훈, 안재우, 이재헌
Korean J. Met. Mater. 2021;59(4):223-232.   Published online 2021 Mar 24
DOI: https://doi.org/10.3365/KJMM.2021.59.4.223

Abstract
Bipolar electrodialysis was used in a process of desalting a lithium sulfate solution, converting it to lithium hydroxide and sulfuric acid, and concentrating and recovering them. The effects of the experimental variables such as applied voltage, the concentration of electrode solution, the concentration of raw material solution, volume ratio, and..... More

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