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| Removal of Heavy Metals from Manganese Sulfate Solution and Preparation of Battery-level Manganese Sulfate |
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Received:August 09, 2020
Revised:August 16, 2020
Accepted:August 17, 2020
Published Online:October 31, 2020
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| DOI：doi：10.3969/j.issn.1007-7545.2020.11.014 |
| KeyWord:battery-level manganese sulfate; heavy metals; impurity removal; sulfide precipitation |
| Author | Institution |
| WANG Yue-jun |
河套学院 生态与资源工程系 |
| WANG wei-na |
河套学院 生态与资源工程系 |
| LIU Yi-lun |
河套学院 生态与资源工程系 |
| LIU Fen |
中南大学 冶金与环境学院 |
| CHEN Xing-yu |
中南大学 冶金与环境学院 |
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| Abstract: |
| With strict requirement of battery industry for quality of manganese sulfate products, purification of manganese sulfate during production improves gradually. Effects of different forms of MnS on purification and removal of heavy metals in industrial grade manganese sulfate were compared. Effects of reaction temperature, reaction time, pH value and amount of new ecological MnS on purification were investigated by control variable method. The results show that new ecological MnS is better than powdered MnS. The optimum conditions of purification with new ecological MnS include dosage of new ecological MnS of 6 g/L, pH value of 3.6, reaction temperature of 80 ℃, and reaction time of 1.5 h, under these conditions, content of Fe, Cu, Zn and Pb in manganese sulfate solution is 0.3, 0, 0.3, and 6.5 μg/L, which meet the standards of battery-level manganese sulfate. |
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