Study on Comprehensive Utilization of Spent Zinc-Manganese Batteries

LI Mingshi; GUO Shouyi; LI Haodong; XIE Jing; WEI Ming; WANG Yaowu

doi:10.13779/j.cnki.issn1001-0076.2020.05.018

2020 Vol. 40, No. 5

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LI Mingshi, GUO Shouyi, LI Haodong, XIE Jing, WEI Ming, WANG Yaowu. Study on Comprehensive Utilization of Spent Zinc-Manganese Batteries[J]. Conservation and Utilization of Mineral Resources, 2020, 40(5): 134-137. doi: 10.13779/j.cnki.issn1001-0076.2020.05.018

Citation:

LI Mingshi, GUO Shouyi, LI Haodong, XIE Jing, WEI Ming, WANG Yaowu. Study on Comprehensive Utilization of Spent Zinc-Manganese Batteries[J]. Conservation and Utilization of Mineral Resources, 2020, 40(5): 134-137. doi: 10.13779/j.cnki.issn1001-0076.2020.05.018

Study on Comprehensive Utilization of Spent Zinc-Manganese Batteries

School of Metallurgy, Northeastern University, Shenyang 110819, China

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Corresponding author: WANG Yaowu, wangyw@smm.neu.edu.cn

Received Date: 08 August 2020

Publish Date: 25 October 2020

Abstract

Abstract

Alkaline zinc-manganese battery is the most used disposable battery, and it will pollute the environment after it is discarded. More and more attention of the recycling process of the spent zinc-manganese battery has been attracted with the increase of the battery usage. A recovery and utilization process of spent zinc-manganese battery was studied in the laboratory. The existent form of processed materials and the recovery ratio of potassium and zinc were studied. The results showed that more than 99% of potassium hydroxide could be recovered when the spent alkaline zinc-manganese battery materials was leached by water. The main phases of calcined slag were ZnO and ZnMn₂O₄. After calcined slag was processed by vacuum aluminothermic reduction, zinc and manganese could be reduced, and more than 98% of zinc could be recovered. The main phases of reduction slag were alumina and aluminum manganese alloy.
- spent zinc-manganese battery /
- leaching /
- vacuum thermal reduction /
- zinc /
- Al-Mn alloy

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References

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