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 |
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.
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