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http://dx.doi.org/10.7844/kirr.2022.31.3.73

Separation of Ni(II), Co(II), Mn(II), and Si(IV) from Synthetic Sulfate and Chloride Solutions by Ion Exchange  

Nguyen, Thi Thu Huong (Department of Advanced Materials Science & Engineering, Institute of Rare Metal, Mokpo National University)
Wen, Jiangxian (Department of Advanced Materials Science & Engineering, Institute of Rare Metal, Mokpo National University)
Lee, Man Seung (Department of Advanced Materials Science & Engineering, Institute of Rare Metal, Mokpo National University)
Publication Information
Resources Recycling / v.31, no.3, 2022 , pp. 73-80 More about this Journal
Abstract
Reduction smelting of spent lithium-ion batteries at high temperature produces metallic alloys. Following solvent extraction of the leaching solutions of these metallic alloys with either sulfuric or hydrochloric acid, the raffinate is found to contain Ni(II), Co(II), Mn(II), and Si(IV). In this study, two cationic exchange resins (Diphonix and P204) were employed to investigate the loading behavior of these ions from synthetic sulfate and chloride solutions. Experimental results showed that Ni(II), Co(II), and Mn(II) could be selectively loaded onto the Diphonix resin from a sulfate solution of pH 3.0. With a chloride solution of pH 6.0, Mn(II) was selectively loaded onto the P204 resin, leaving Ni(II) and Si(IV) in the effluent. Elution experiments with H2SO4 and/or HCl resulted in the complete recovery of metal ions from the loaded resin.
Keywords
spent lithium-ion battery; purification; recovery; ion exchange;
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Times Cited By KSCI : 1  (Citation Analysis)
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