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| Effects of Mechanical Activation on Zinc Leaching from Blast Furnace Dusts |
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Received:October 05, 2013
Revised:October 08, 2013
Accepted:October 09, 2013
Published Online:March 31, 2014
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| DOI：10.3969/j.issn.1007-7545.2014.03.003 |
| KeyWord:mechanical activation; dusts of blast furnace iron making; zinc; leaching |
| Author | Institution |
| Jiang Yan |
红河学院理学院 |
| Sun Li-da |
红河学院理学院 |
| Huang Hui |
昆明冶金高等专科学校 |
| Li Zi-jing |
红河学院理学院 |
| Huang Zhao-long |
红河学院理学院 |
| Feng Shao-ping |
红河学院理学院 |
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| Abstract: |
| Blast furnace dusts were non-activation and activation leached with sulfuric acid. The effects of sulfuric acid concentration, leaching temperature, leaching time, and ratio of liquid to solid on zinc extraction rate were investigated by orthogonal experiment and single-factor experiment. The results show that zinc leaching rate from non-activated dusts is 96.78% under the conditions including ratio of liquid to solid of 8∶1, sulfuric acid concentration of 170 g/L, leaching temperature of 95 ℃ and leaching time of 90 min. To compare, zinc leaching rate from activated dusts is 98.19% under the conditions including ratio of liquid to solid of 7∶1, sulfuric acid concentration of 150 g/L, leaching temperature of 85 ℃ and leaching time of 75 min. |
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