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| Improvement of Effective Silicon Content in Magnesium Reduction Slag Leached by Hydrochloric Acid |
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Received:January 25, 2015
Revised:January 29, 2015
Accepted:February 02, 2015
Published Online:June 23, 2015
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| DOI：doi：10.3969/j.issn.1007-7545.2015.07.015 |
| KeyWord:magnesium reduction slag; acid leaching; effective silicon; orthogonal test |
| Author | Institution |
| LIANG Yi-ran |
太原理工大学 材料科学与工程学院 |
| LI Ming-zhao |
太原理工大学 材料科学与工程学院 |
| LIANG Xiao-bo |
太原理工大学 材料科学与工程学院 |
| WANG Guo-wei |
太原理工大学 材料科学与工程学院 |
| ZHANG Yao-bin |
太原理工大学 材料科学与工程学院 |
| MAO Jia |
太原理工大学 材料科学与工程学院 |
| REN Chuan-xi |
太原理工大学 材料科学与工程学院 |
| YAN Xiao-qin |
北方自动控制技术研究所 |
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| Abstract: |
| Magnesium reduction slag was roasted with quartz sand and leached by hydrochloric acid and acid leaching residues were roasted with additives to improve effective silicon content for plant absorption. The results show that MgO, CaO, and Fe2O3 in magnesium reduction slag are dissolved into solution after roasted with quartz sand and leached by 4 mol/L hydrochloric acid. The main component of acid leaching residues is silicon dioxide after roasting. The effective silicon content is improved from 4.35% of initial magnesium reduction slag to 25.62% after acid leaching residues are roasted with additives of KOH at 200 ℃ for 6 h. |
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