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| Study on Magnesium Preparation from Carbide Slag and Magnesium Chloride |
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Received:November 16, 2015
Revised:November 19, 2015
Accepted:November 23, 2015
Published Online:March 21, 2016
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| DOI：10.3969/j.issn.1007-7545.2016.04.008 |
| KeyWord:bischofite; carbide slag; magnesium |
| Author | Institution |
| Qi Mixiang |
中国科学院青海盐湖研究所盐湖资源综合高效利用院重点实验室 |
| Tang Hongxue |
青海省化工设计研究院有限公司 |
| Wang Shuxuan |
中国科学院青海盐湖研究所盐湖资源综合高效利用院重点实验室 |
| Li Bo |
中国科学院青海盐湖研究所盐湖资源综合高效利用院重点实验室 |
| Zhao Zengbing |
青海省化工设计研究院有限公司 |
| Wang Shuya |
中国科学院青海盐湖研究所盐湖资源综合高效利用院重点实验室 |
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| Abstract: |
| with carbide slag and magnesium chloride as raw materials, mixture of calcium hydroxide and magnesium hydroxide was obtained by chemical synthesis method. The mixture was calcined at low temperature to prepare calcined dolomite for magnesium preparation by Silicothermic Method under vacuum condition with addition of ferrosilicon and fluorite. The results show that this technical route is feasible, with yield of magnesium almost equal to Pidgeon Process. The optimum conditions include Ca/Mg molar ratio of calcined product of 0.85, calcinations temperature of 850 ℃, and time of 1.0 h. |
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