Selection of organic acid leaching reagent for recovery of zinc and manganese from zinc-carbon and alkaline spent batteries

International Conference on Advanced Materials for Better Future 2017

Yuliusman^1 ; Amiliana, R.A.^1 ; Wulandari, P.T.^1 ; Ramadhan, I.T.^1 ; Kusumadewi, F.A.^1

Chemical Engineering Department, University of Indonesia, Depok

16424, Indonesia^1

关键词: Acid leaching;    Alkaline batteries;    Aspartic acids;    Environmental-friendly;    Leaching methods;    Malic acids;    Spent batteries;    Valuable metals;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/333/1/012041/pdf
DOI  :  10.1088/1757-899X/333/1/012041

来源: IOP

【 摘 要 】

Zinc-carbon and alkaline batteries are often used in electronic equipment that requires small quantities of power. The waste from these batteries contains valuable metals, such as zinc and manganese, that are needed in many industries and can pollute the environment if not treated properly. This paper concerns the recovery of zinc and manganese metals from zinc-carbon and alkaline spent batteries with leaching method and using organic acid as the environmental friendly leaching reagent. Three different organic acids, namely citric acid, malic acid and aspartic acid, were used as leaching reagents and compared with sulfuric acid as non-organic acid reagents that often used for leaching. The presence of hydrogen peroxide as manganese reducers was investigated for both organic and non-organic leaching reagents. The result showed that citric acid can recover 64.37% Zinc and 51.32% Manganese, while malic acid and aspartic acid could recover less than these. Hydrogen peroxide gave the significant effect for leaching manganese with non-organic acid, but not with organic acid.