Acquisition of Co metal from spent lithium-ion battery with emulsion liquid membrane technology using cyanex 272 as extractant

2nd international Tropical Renewable Energy Conference 2017

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

Chemical Engineering Department, University of Indonesia, Depok

16424, Indonesia^1

关键词: Energy source;    Extractants;    Extraction efficiencies;    Extraction process;    Feed phase;    Leaching process;    Spent lithium-ion batteries;    Valuable metals;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/105/1/012044/pdf
DOI  :  10.1088/1755-1315/105/1/012044

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. 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 4 M, temperature 80°C, and reaction time 1 hour condition give out the best leaching efficiency for both Co and Mn metals, 88.54% and 89.28% respectively. For extraction, the best extraction efficiency achieved when feed phase pH is 5 for Co and 6 for Mn. This study will discuss the leaching and extraction process and compare the efficiency for both processes.