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| Complex Desulfurization during Optimized Digestion Process of High-Sulfur Bauxite |
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Received:August 23, 2018
Revised:August 27, 2018
Accepted:August 28, 2018
Published Online:November 19, 2018
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| DOI：doi：10.3969/j.issn.1007-7545.2018.12.003 |
| KeyWord:high-sulfur bauxite; complex desulfurizer; digestion; desulfurization; barium aluminate; zinc oxide |
| Author | Institution |
| Xu Yingpeng |
贵州大学 材料与冶金学院 |
| Li Junqi |
贵州大学 材料与冶金学院 |
| Chen Chaoyi |
贵州大学 材料与冶金学院 |
| Lan Yuanpei |
贵州大学 材料与冶金学院 |
| Liu Long |
贵州大学 材料与冶金学院 |
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| Abstract: |
| Zinc oxide and barium aluminate are mixed and grinded as complex desulfurizer. Effects of ore sulfur content, ratio and dosage of desulfurizer on digestion rate of sulfur and alumina of high sulfur bauxite ore were investigated based on optimization digestion process. The results show that digestion rate of sulfur rises with increase of sulfur content in ore. Composite desulfurizer is beneficial to improve digestion effect of zinc oxide. Zinc oxide plays a major role in desulfurization, while barium aluminate acts as decarburization with poor desulfurization effect. For the ore with sulfur content of 1.1%, when 10% of theoretical amount of zinc oxide is added, digestion rate of sulfur drops from 18.4% to 11.15%, and digestion rate of sulfur drops only to 9.71% with addition of 100% of theoretical amount of barium aluminate. Sulfur digestion rate drops to 9.65% with addition of 14% of theoretical amount of zinc oxide and 40% of barium aluminate. |
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