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| Manganese Leaching from Cathode Powder of Spent Lithium Manganite Battery |
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Received:January 30, 2022
Revised:February 08, 2022
Accepted:February 09, 2022
Published Online:May 12, 2022
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| DOI：doi：10.3969/j.issn.1007-7545.2022.06.002 |
| KeyWord:spent Li-ion batteries; lithium manganite; leaching; manganite; recycle |
| Author | Institution |
| LU Jun-que |
湖南邦普循环科技有限公司 |
| WANG Du |
湖南邦普循环科技有限公司 |
| LIU Yong-qi |
湖南邦普循环科技有限公司 |
| LYU Zhi-bin |
湖南邦普循环科技有限公司 |
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| Hits: 2011 |
| Download times: 1940 |
| Abstract: |
| Spent lithium manganite battery contains a large amount of valuable metal elements of manganese and lithium with high economic recycling value. Applying sulfuric acid as leaching reagents to investigate effects of mass ratio of sulfuric acid to raw material, type of reducing agent, amount of reducing agent, reaction temperature, and reaction time on manganese leaching rate. The results show that manganese leaching rate is 94.01% under the conditions including ratio of sulfuric acid to raw material of 2.5, leaching temperature of 60 ℃, ratio of reducing agent to raw material of 1︰1, sodium thiosulfate as reducing agent, and reaction time of 1 h. When reacting time is 0.5 h and hydrogen peroxide is used as reducing agent, the leaching rate of manganese is 99.91%. Manganese leaching rate is up to 99.99% when sodium thiosulfate ︰ hydrogen peroxide = 8︰2 is determined as the combined reducing agent. |
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