|
| Study on Nickel Extraction from Crude Nickel Sulfate Solution |
|
Received:May 12, 2022
Revised:May 19, 2022
Accepted:May 21, 2022
Published Online:September 16, 2022
|
| View Full Text View/Add Comment Download reader |
| DOI：doi：10.3969/j.issn.1007-7545.2022.10.003 |
| KeyWord:crude nickel sulfate; HBL110; extraction; stripping |
| Author | Institution |
| WU Jian-hui |
中南大学冶金与环境学院 |
| WANG Yi-mim |
中南大学冶金与环境学院 |
| YAN Run |
中南大学冶金与环境学院 |
|
| Hits: 2882 |
| Download times: 1821 |
| Abstract: |
| Nickel was directly extracted from crude nickel sulfate solution with new extractant HBL110. The results show that after 5-stage countercurrent extraction, the extraction efficiency of nickel is 98.63%, and extraction efficiency of Fe, Co, Zn, Ca and Mg is 10.41%, 22.86%, 8.42%, 1.75%, and 1.38% respectively under the optimum extraction conditions including saponification ratio of extractant of 60%, initial pH value of 2.2, phase ratio VO︰VA=2︰1, and extraction time of 5 min. Before stripping the organic phase is washed with dilute acid solution, after 4-stage countercurrent stripping, the stripping efficiency of nickel is 98.85%, and nickel concentration in stripping solution is 31.11 g/L with low impurity content under the optimum stripping conditions including concentration of stripping agent of 1.0 mol/L, phase ratio of VO︰VA=4︰1, and stripping time of 5 min. |
| Close |
|
|
|