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| Magnetic Separation Characteristics of High Titanium Bauxite and Dissolution Properties of Aluminum-Bearing Tailings |
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Received:December 24, 2018
Revised:January 10, 2019
Accepted:January 14, 2019
Published Online:March 19, 2019
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| DOI：doi：10.3969/j.issn.1007-7545.2019.04.003 |
| KeyWord:high titanium bauxite; magnetic separation; dissolution |
| Author | Institution |
| zhangshiheng |
贵州大学 材料与冶金学院 |
| chenchaoyi |
贵州大学 材料与冶金学院 |
| lijunqi |
贵州大学 材料与冶金学院 |
| lanyuanpei |
贵州大学 材料与冶金学院 |
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| Abstract: |
| Separation characteristics of titanium (iron) and aluminum of high titanium bauxite under different magnetic field intensity, ratio of liquid to solid (L/S) of magnetic separation, and magnetic separation time were studied. Dissolution properties of aluminum-bearing tailings were investigated. The results show that aluminum recovery rate is 75.19%, removal rate of titanium and iron is 57.45% and 73.95% respectively under the conditions including magnetic field intensity of 19.5 kA/m, L/S of magnetic separation of 5︰1, and magnetic separation time of 4 min. Actual alumina dissolution rate of aluminum-bearing tailings is 80.95% under the conditions including dissolution time of 45 min, lime dosage of 2%, and alkali concentration of 180 g/L. Separation of titanium (iron) and aluminum in high titanium bauxite is achieved by magnetic separation process, and aluminum-bearing tailings after separation have better dissolution characteristics. |
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