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[3913-23-03] Extraction of Mn and Ni by antagonistic effect and synergistic effect using alkyl monocarboxylic acid in mixture extractants
Chairman: Atsushi Shibayama （Akita University）, Mikiya Tanaka (AIST)
Keywords:antagonistic effect, synergistic effect, nickel, manganese, alkyl monocarboxylic acid
We investigated antagonistic and synergistic effect to extract Mn and Ni from Co by addition of alkylmonocarboxylic acid in mixture of extractnats from Li-ion batteries. The effect of alkyl monocarboxylic acid concentration was the experimental variable in the mixture of extractants. pH isotherm, distribution ratio, separation factor, McCabe-Thiele diagram and counter current extraction tests are conducted. As a results, by addiiton of alkylmonocarboxylic acid, the distribution ratio of Co was decreased while increasing of alkyl monocarboxylic acid increased extraction efficiency of Ni over Co in mixture extractants.
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