Browse > Article
http://dx.doi.org/10.7844/kirr.2012.21.6.58

Solvent Extraction of Ni and Li from Sulfate Leach Liquor of the Cathode Active Materials of Spent Li-ion Batteries by PC88A  

Ahn, Jae-Woo (Dept. of Advanced materials & Science, Daejin University)
Ahn, Hyo-Jin (Dept. of Advanced materials & Science, Daejin University)
Son, Seong-Ho (Korea Institute of Industrial Technology)
Lee, Ki-Woong (SungEel Hitech Co., LTD.)
Publication Information
Resources Recycling / v.21, no.6, 2012 , pp. 58-64 More about this Journal
Abstract
A study on the solvent extraction for the separation and recovery of Ni and Li from the leaching solution of active cathode materials of Li-ion batteries was investigated using PC88A(2-ethylhexyl phosphonic acid mono-2-ethylhexyl ester). The experimental parameters, such as the pH of the solution, concentration of extractant and phase ratio were observed. Experimental results showed that the extraction percent of Ni and Li and separation factor of Ni/Li were increased with increasing the equilibrium pH. More than 99.4% of Ni and 28.7% of Li were extracted in eq. pH 8.5 by 25% PC88A and the separation factor of Ni/Li was 411.6. From the analysis of McCabe-Thiele diagram, 99% of Ni was extracted by three extraction stages at phase ratio(A/O) of 1.5. Stripping of Ni and Li from the loaded organic phases can be accomplished by sulfuric acid as a stripping reagent and 50-60g/L of $H_2SO_4$ was effective for the stripping of Ni.
Keywords
Solvent extraction; PC88A; Nickel; Lithium; Lithium ion battery;
Citations & Related Records
연도 인용수 순위
  • Reference
1 J. Xu, H.R. Thomas, R.W. Francis, et al., 2008 : "A review of processes and technologies for the recycling of lithiumion secondary batteries," J. Power sources 177, 512-527.   DOI   ScienceOn
2 Dorella, G., Mansur, M., 2007 : "A study of the separation of cobalt from spent Li-ion battery residues," J. Power sources 170, 210-215.   DOI   ScienceOn
3 Swain, B., Jeong., Lee, J.C. et al., 2007 : "Hydrometallurgical process for recovery of cobalt from waste cathodic active material generated during manufacturing of lithium batteries," J. Power sources 167, 536-544.   DOI   ScienceOn
4 Zhang, W.P., Yokoyama, T., Itabashi, O., et al., 1998 : "Hydrometallurgical process for recovery of metal values from spent lithium-ion secondary batteries," Hydrome tallurgy 47, 259-271.   DOI   ScienceOn
5 Shin, S.M., Kim, N.H., Sohn, J. S., 2005 : "Development of a metal recovery process from Li-ion battery wastes," Hydrometallurgy 79, 172-181.   DOI   ScienceOn
6 T. Georgi-Maschler., B. Friedrich, R. Weyhe, H. Heegn, M. Rutz, 2012 : "Development of a recycling process for Liion batteries," J. of Power Source 207, 173-182.   DOI
7 JP Patent 2004-307983 "Recovery of nickel from nickel containing solution."
8 JP Patent 2006-57142 "Method for recovery of lithium"