|
| Synergistic Extraction of Calcium, Manganese, Copper, and Zinc Ions from Cobalt Leachate by P204+P507 |
|
Received:July 22, 2022
Revised:July 31, 2022
Accepted:August 01, 2022
Published Online:November 14, 2022
|
| View Full Text View/Add Comment Download reader |
| DOI：doi：10.3969/j.issn.1007-7545.2022.12.006 |
| KeyWord:cobalt sulfate leachate; co-extraction; cobalt; manganese; separation |
| Author | Institution |
| GAO Li-gang |
桂林理工大学 材料科学与工程学院 |
| XU Jing-chen |
桂林理工大学 材料科学与工程学院 |
| LI Zhong-lin |
桂林理工大学 材料科学与工程学院 |
| XIAO Chao |
桂林理工大学 材料科学与工程学院 |
| LI Yi-bing |
桂林理工大学 材料科学与工程学院 |
|
| Hits: 1689 |
| Download times: 1537 |
| Abstract: |
| Address to complex extraction process and a large number of extraction stages of cobalt extraction by step extraction method, P204+P507 was applied as complex extraction agent to separate Zn2+, Ca2+, Mn2+, Cu2+ from the industrial cobalt sulfate leaching solution in one time. Effects of equilibrium pH value, ratio of complex extractant, extraction phase ratio O/A, and saponification rate of organic phase on the extraction rate of elements were investigated. The results show that with 28%P204+7%P507 as complex extractant and 65% solvent oil as diluent, the saponification rate of organic phase is 50%, extraction equilibrium pH=3.57, and O/A=2, the single stage extraction rate of Zn2+, Ca2+, Mn2+ and Cu2+ is 99.97%, 94.65%, 88.42% and 87.18%, respectively, while extraction rate of Co2+ is only 17.42%. 99% of cobalt can be washed after two times washing by 1.5 mol/L sulfuric acid with stripping ratio O/A=20. |
| Close |
|
|
|