| 真空氯化亚铝歧化法从氧化铝中提取铝 |
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| 引用本文： | 冯月斌,郁青春,杨斌,戴永年.真空氯化亚铝歧化法从氧化铝中提取铝[J].中国有色金属学会会刊,2013,23(9):2781-2785. |
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| 作者姓名： | 冯月斌 郁青春 杨斌 戴永年 |
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| 作者单位： | 1. 昆明理工大学 理学院,昆明,650500
2. 昆明理工大学 冶金与能源工程学院，真空冶金国家工程实验室，昆明 650093 |
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| 基金项目： | Project （51264023） supported by the National Natural Science Foundation of China; Project （KKSY201207016） supported by Yunnan Provincial Science and Technology Department, China |
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| 摘 要： | 研究了以氧化铝和石墨为原料真空氯化亚铝歧化法提取铝的条件，包括反应温度、预反应和冷凝器的结构。结果表明：在1643~1843 K的温度范围内，氧化铝与碳的反应程度随着反应温度的升高而提高，但铝的提取率首先随着反应温度的升高而提高，在1743 K时达到最高，继续升高反应温度，铝的提取率反而降低；氧化铝与碳进行预反应可以提高金属铝的提取率；金属铝与CO的接触面积越小、冷凝温度越低，C、Al4C3和Al2O3杂质的含量越低，这取决于冷凝器的结构。
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| 关 键 词： | 铝 氯化亚铝 氧化铝 提取 真空 歧化 |
| 收稿时间： | 16 July 2012 |
Extraction of aluminum from alumina by disproportionation process of A1C1 in vacuum |
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| Yue-bin FENG
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Qing-chun YU
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Bin YANG
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Yong-nian DAI.Extraction of aluminum from alumina by disproportionation process of A1C1 in vacuum[J].Transactions of Nonferrous Metals Society of China,2013,23(9):2781-2785. |
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| Authors: | Yue-bin FENG Qing-chun YU Bin YANG Yong-nian DAI |
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| Affiliation: | 1. Faculty of Science, Kunming University of Science and Technology, Kunming 650500, China; 2. National Engineering Laboratory of Vacuum Metallurgy, Faculty of Metallurgy and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China) |
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| Abstract: | The extraction conditions of aluminum by the disproportionation process of A1C1 in vacuum were investigated using alumina and graphite as raw materials, including reaction temperature, pre-reaction and condenser structure. The results show that the extent of the reaction between alumina and carbon increases with increasing reaction temperature at 1643-1843 K; however, the extraction rate of aluminum increases firstly, and reaches the highest at 1743 K, and then decreases with rise in reaction temperature. The pre-reaction of alumina and carbon increases the extraction rate of aluminum. The impurities C, AlaC3 and A1203 in the aluminum product are reduced with reducing the contact surface of the aluminum with CO and with decreasing the condensation temperature, depending on the structure of the condenser. |
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| Keywords: | aluminum AlCl alumina extraction vacuum disproportionation |
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