Influence of silver ions on bioleaching of cobalt from spent lithium batteries

Guisheng Zeng; Shenglian Luo; Xiaorong Deng; Lei Li; Chak Tong Au

doi:10.1016/j.mineng.2013.04.021

Influence of silver ions on bioleaching of cobalt from spent lithium batteries

Guisheng Zeng, Shenglian Luo^*, Xiaorong Deng, Lei Li, Chak Tong Au

^*Corresponding author for this work

Department of Chemistry

Research output: Contribution to journal › Journal article › peer-review

107 Citations (Scopus)

Abstract

The influence of silver ions (Ag⁺) on the bioleaching of cobalt from spent lithium batteries using Acidithiobacillus ferrooxidans (A. ferrooxidans) bacteria was investigated. The best effect was observed at Ag ⁺ concentration of 0.02 g/L, and the amount of leached cobalt was 98.4% in a period of 7 days, whereas in the absence of Ag⁺, the amount of leached cobalt was only 43.1%. Based on the results of SEM, XRD and EDX investigation, it is deduced that Ag⁺ first reacted with cobalt to form AgCoO₂ as an intermediate. A mechanism that is based on catalytic interactions is proposed to explain the enhanced leaching of Co using A. ferrooxidans.

Original language	English
Pages (from-to)	40-44
Number of pages	5
Journal	Minerals Engineering
Volume	49
DOIs	https://doi.org/10.1016/j.mineng.2013.04.021
Publication status	Published - Aug 2013

User-Defined Keywords

Bioleaching
Catalyst
Silver
Spent lithium batteries

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10.1016/j.mineng.2013.04.021

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title = "Influence of silver ions on bioleaching of cobalt from spent lithium batteries",

abstract = "The influence of silver ions (Ag+) on the bioleaching of cobalt from spent lithium batteries using Acidithiobacillus ferrooxidans (A. ferrooxidans) bacteria was investigated. The best effect was observed at Ag + concentration of 0.02 g/L, and the amount of leached cobalt was 98.4% in a period of 7 days, whereas in the absence of Ag+, the amount of leached cobalt was only 43.1%. Based on the results of SEM, XRD and EDX investigation, it is deduced that Ag+ first reacted with cobalt to form AgCoO2 as an intermediate. A mechanism that is based on catalytic interactions is proposed to explain the enhanced leaching of Co using A. ferrooxidans.",

keywords = "Bioleaching, Catalyst, Silver, Spent lithium batteries",

author = "Guisheng Zeng and Shenglian Luo and Xiaorong Deng and Lei Li and Au, {Chak Tong}",

note = "Funding Information: This work was financially supported by the State Key Program of National Natural Science of China ( 51238002 ), the National Natural Science Foundation of China ( 51266011, 51272099 ), the Natural Science Foundation of Jiangxi Province ( 2010GZH0111 ), the Opening Fund of Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Hunan Normal University), Ministry of Education ( KLCBTCMR2011-03 ), and the Technology Support Program of Jiangxi Province ( 20112BBG70001 ).",

year = "2013",

month = aug,

doi = "10.1016/j.mineng.2013.04.021",

language = "English",

volume = "49",

pages = "40--44",

journal = "Minerals Engineering",

issn = "0892-6875",

publisher = "Elsevier Ltd.",

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TY - JOUR

T1 - Influence of silver ions on bioleaching of cobalt from spent lithium batteries

AU - Zeng, Guisheng

AU - Luo, Shenglian

AU - Deng, Xiaorong

AU - Li, Lei

AU - Au, Chak Tong

N1 - Funding Information: This work was financially supported by the State Key Program of National Natural Science of China ( 51238002 ), the National Natural Science Foundation of China ( 51266011, 51272099 ), the Natural Science Foundation of Jiangxi Province ( 2010GZH0111 ), the Opening Fund of Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Hunan Normal University), Ministry of Education ( KLCBTCMR2011-03 ), and the Technology Support Program of Jiangxi Province ( 20112BBG70001 ).

PY - 2013/8

Y1 - 2013/8

N2 - The influence of silver ions (Ag+) on the bioleaching of cobalt from spent lithium batteries using Acidithiobacillus ferrooxidans (A. ferrooxidans) bacteria was investigated. The best effect was observed at Ag + concentration of 0.02 g/L, and the amount of leached cobalt was 98.4% in a period of 7 days, whereas in the absence of Ag+, the amount of leached cobalt was only 43.1%. Based on the results of SEM, XRD and EDX investigation, it is deduced that Ag+ first reacted with cobalt to form AgCoO2 as an intermediate. A mechanism that is based on catalytic interactions is proposed to explain the enhanced leaching of Co using A. ferrooxidans.

AB - The influence of silver ions (Ag+) on the bioleaching of cobalt from spent lithium batteries using Acidithiobacillus ferrooxidans (A. ferrooxidans) bacteria was investigated. The best effect was observed at Ag + concentration of 0.02 g/L, and the amount of leached cobalt was 98.4% in a period of 7 days, whereas in the absence of Ag+, the amount of leached cobalt was only 43.1%. Based on the results of SEM, XRD and EDX investigation, it is deduced that Ag+ first reacted with cobalt to form AgCoO2 as an intermediate. A mechanism that is based on catalytic interactions is proposed to explain the enhanced leaching of Co using A. ferrooxidans.

KW - Bioleaching

KW - Catalyst

KW - Silver

KW - Spent lithium batteries

UR - http://www.scopus.com/inward/record.url?scp=84878447579&partnerID=8YFLogxK

U2 - 10.1016/j.mineng.2013.04.021

DO - 10.1016/j.mineng.2013.04.021

M3 - Journal article

AN - SCOPUS:84878447579

SN - 0892-6875

VL - 49

SP - 40

EP - 44

JO - Minerals Engineering

JF - Minerals Engineering

ER -

Influence of silver ions on bioleaching of cobalt from spent lithium batteries

Abstract

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