Acquisition of Co metal from spent lithium-ion battery using emulsion liquid membrane technology and emulsion stability test

International Conference on Advanced Materials for Better Future 2017

Yuliusman^1 ; Wulandari, P.T.^1 ; Amiliana, R.A.^1 ; Huda, M.^1 ; Kusumadewi, F.A.^1

Chemical Engineering Department, University of Indonesia, Depok

16424, Indonesia^1

关键词: Acid concentrations;    Emulsion liquid membrane (ELM);    Emulsion stability;    Energy source;    Leaching process;    Optimum concentration;    Spent lithium-ion batteries;    Valuable metals;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/333/1/012036/pdf
DOI  :  10.1088/1757-899X/333/1/012036

来源: IOP

【 摘 要 】

Lithium-ion batteries are the most common type to be used as energy source in mobile phone. The amount of lithium-ion battery wastes is approximated by 200 - 500 ton/year. In one lithium-ion battery, there are 5 - 20% of cobalt metal, depend on the manufacturer. One of the way to recover a valuable metal from waste is leaching process then continued with extraction, which is the aim of this study. Spent lithium-ion batteries will be characterized with EDX and AAS, the result will show the amount of cobalt metal with form of LiCoO2in the cathode. Hydrochloric acid concentration used is 4 M, temperature 80°C, and reaction time 1 hour. This study will discuss the emulsion stability test on emulsion liquid membrane. The purpose of emulsion stability test in this study was to determine optimum concentration of surfactant and extractant to produce a stable emulsion. Surfactant and extractant used were SPAN 80 and Cyanex 272 respectively with both concentrations varied. Membrane and feed phase ratios used in this experiment was 1 : 2. The optimum results of this study were SPAN 80 concentrations of 10% w/v and Cyanex 272 0.7 M.