한국지구물리탐사학회:학술대회논문집

Korean Society of Earth and Exploration Geophysicists (한국지구물리·물리탐사학회)
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Solvent Extraction Separation of Co, Mn and Zn from leaching solution from Ni-Cd battery by Na-PC88A

  • Ahn Jong-Gwan (Minerals and Materials Processing Division, Korea Institute of Geoscience and Mineral Resources) ;
  • Park Kyoung-Ho (Minerals and Materials Processing Division, Korea Institute of Geoscience and Mineral Resources) ;
  • Sohn Jeong-Soo (Minerals and Materials Processing Division, Korea Institute of Geoscience and Mineral Resources) ;
  • Kim Dong-Jin (Minerals and Materials Processing Division, Korea Institute of Geoscience and Mineral Resources) ;
  • Lee Jaereyeong (Minerals and Materials Processing Division, Korea Institute of Geoscience and Mineral Resources) ;
  • Jeong HunSaeong (Minerals and Materials Processing Division, Korea Institute of Geoscience and Mineral Resources)
  • Published : 2003.11.01
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Abstract

Solvent extraction experiments for separation of impurities from Ni-rich solution were carried out for manufacturing of high purity Ni compounds from acid leaching solution of spent Ni-Cd secondary battery. Artificial and leaching solutions were used as aqueous phases and PC88A saponified by sodium in kerosene were used as organic phase. The extraction order is Zn>Mn>Co>Ni and extraction percentage of metal ions was increased with increase of the concentration of extractant, initial pH of aqueous phase and ratio of O/A. The separation of cobalt, zinc and manganese from nickel was effectively accomplished at the condition of extraction stage=l, O/A=1 and initial pH 5.0 with 1.0 $mol/dm^3$ PC88A saponified to $50\%$ with NaOH.

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