|
| Orthogonal Experiments and Kinetic Analysis on Magnesium Leaching from Ferronickel Slag with Sulfuric Acid under Normal Pressure |
|
Received:September 10, 2019
Revised:September 24, 2019
Accepted:September 24, 2019
Published Online:December 18, 2019
|
| View Full Text View/Add Comment Download reader |
| DOI：doi：10.3969/j.issn.1007-7545.2020.01.005 |
| KeyWord:ferronickel slag; magnesium recovery; sulfuric acid leaching; dynamics |
| Author | Institution |
| huang zhicheng |
广西有色金属及特色材料加工重点实验室 |
| gao feng |
广西有色金属及特色材料加工重点实验室 |
| Li xinsheng |
广西有色金属及特色材料加工重点实验室 |
| Wang kaituo |
广西有色金属及特色材料加工重点实验室 |
| He chunlin |
广西有色金属及特色材料加工重点实验室 |
| Wang youbin |
广西有色金属及特色材料加工重点实验室 |
| Wei yuezhou |
广西有色金属及特色材料加工重点实验室 |
|
| Hits: 1899 |
| Download times: 1678 |
| Abstract: |
| Ferronickel slag has high recovery value due to its large amount production and magnesium enrichment. Based on composition and mineral phase structure of ferronickel slag, rules and influencing factors for Mg leaching reaction between ferronickel slag and sulfuric acid solution were studied under atmospheric pressure. The experimental results show that Mg leaching rate is 83.73% under the conditions including L/D=20/1, leaching temperature of 180 ℃, leaching time of 120 min, and mass fraction of sulfuric acid of 80%. Kinetic analysis shows that leaching reaction is controlled by interfacial chemical reaction with apparent activation energy of 12.72 kJ/mol. |
| Close |