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| Recovery of Manganese from Mn, Co, Ni Containing Leaching Solution by Extraction |
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Received:November 15, 2019
Revised:November 19, 2019
Accepted:November 20, 2019
Published Online:March 17, 2020
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| DOI：doi：10.3969/j.issn.1007-7545.2020.04.005 |
| KeyWord:P204; Mn Co Ni containing leaching solution; extraction; recovery of manganese |
| Author | Institution |
| ZENG Jun |
桂林理工大学材料科学与工程学院 |
| CHEN Jin-zhong |
桂林理工大学材料科学与工程学院 |
| YE You-ming |
广西科技师范学院食品与生化工程学院 |
| CAI Jin-quan |
桂林理工大学材料科学与工程学院 |
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| Abstract: |
| With P204 as extractant and sulfonated kerosene as diluent, manganese was separated from cobalt and nickel bearing solution by two-step extraction and enriched by organic reverse extraction. Effects of factors on Mn extraction rate and separation coefficient were conducted and the optimum conditions were obtained. The results show that Mn extraction rate at room temperature is 62.39% at first stage under the conditions including O/A=2.5, P204 concentration of 30%, pH value of 3.5, and saponification rate of 30%. Total Mn extraction rate of two-step extraction is 98.06% and separation coefficient of Mn to Co and Ni is 90.11 and 92.33 respectively under the conditions including P204 concentration of 30%, saponification rate of 30%, and O/A=2. 85% above of Co and Ni is washed away by 70 g/L sulfuric acid with O/A=10. 98.27% manganese is stripped from Co-Ni-washed solution by 110 g/L sulfuric acid with O/A=4. Both concentration of Co and Ni in strip solution is 0.5 g/L below. |
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