|
| Reductive Leaching of Iron from Sulfate Slag |
|
Received:July 08, 2011
Published Online:December 30, 2011
|
| View Full Text View/Add Comment Download reader |
| DOI：doi：10.3969/j.issn.1007-7545.2012.01.003 |
| KeyWord:sulfate slag; reductive leaching; sulfide; iron; orthogonal test |
| Author | Institution |
| JIN Cheng, LI Deng-xin |
东华大学 环境科学与工程学院，上海 |
|
| Hits: 2278 |
| Download times: 21 |
| Abstract: |
| The ferric iron was reductive leached from sulfate slag with sulfide. The effects of leaching agent dosage, sulfuric acid consumption, reaction temperature and time on leaching rate of iron were investigated with L9(43) orthogonal test. The results show that the sequence of effecting is leaching agent dosage, reaction time, sulfuric acid consumption and reaction temperature. The iron leaching rate reaches 87.8% on the following optimum conditions: ratio of liquid to solid of 2∶1, stirring rate of 1 300 r/min, leaching agent dosage of 17.2 g, sulfuric acid consumption of 23 mL, leaching temperature of 85 ℃ and leaching time of 3 h. |
| Close |
|
|
|