| Title |
Hydrometallurgy : Separation of Co , Mn and Zn in Ni-rich Leaching Solution by Na-PC88A |
| Authors |
안종관(Jong Gwan Ahn),박경호(Kyoung Ho Park),손정수(Jeong Soo Sohn),안재우(Jae Woo Ahn) |
| ISSN |
1738-8228(ISSN), 2288-8241(eISSN) |
| Abstract |
Solvent extraction experiments for the 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. Synthesised and actual leaching solution were used as aqueous phases and PC88A saponified by sodium in kerosene were used as organic phases. The extraction order is Zn>Mn>Co>Ni and extraction percentage of metal ions was increased with an increase of the concentration of extractant, initial pH of aqueous phase and ratio of O/A The separation of Ni and other impurities was effectively accomplished at the condition of extraction stage = 1, O/A = 1, saponified percent 50%, initial pH 5.0, concentration of extractant 1.0M. |