| 氧化铝真空碳热还原-氯化工艺中二氧化钛的行为分析 |
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| 引用本文： | 朱富龙,袁海滨,郁青春,杨斌,徐宝强,戴永年.氧化铝真空碳热还原-氯化工艺中二氧化钛的行为分析[J].中国有色金属学会会刊,2011,21(8):1855-1859. |
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| 作者姓名： | 朱富龙 袁海滨 郁青春 杨斌 徐宝强 戴永年 |
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| 作者单位： | 昆明理工大学真空冶金国家工程实验室;昆明理工大学云南省有色金属真空冶金重点实验室;昆明理工大学材料科学与工程学院; |
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| 基金项目： | Project (u0837604) supported by the Joint Funds of the National Natural Science Foundation of China and Yunnan Province; Project (20095314110003) supported by the Special Research Funds of the Doctor Subject of Higher School,China |
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| 摘 要： | 在不同温度下氧化铝真空碳热还原和氯化反应的过程中,利用XRD、SEM和EDS检测手段分析TiO2的行为。在制备材料时,Al2O3和C的摩尔比为1：4,并添加10%TiO2和过量的AlCl3。结果表明,TiO2从锐钛矿型转化为金红石型后与C反应生成TiC。在1763-1783K的温度区间,在残渣和冷凝物中没有发现Ti和Al的化合物。生成铝的纯度达到98.35%,且TiO2不参与氧化铝真空碳热还原和氯化过程。
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| 关 键 词： | 二氧化钛 氧化铝 碳热还原 氯化反应 |
| 收稿时间： | 15 September 2010 |
Behavior of titanium dioxide in alumina carbothermic reduction-chlorination process in vacuum |
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| Fu-long ZHU,Hai-bin YUAN,Qing-chun YU,Bin YANG,Bao-qiang XU,Yong-nian DAI.Behavior of titanium dioxide in alumina carbothermic reduction-chlorination process in vacuum[J].Transactions of Nonferrous Metals Society of China,2011,21(8):1855-1859. |
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| Authors: | Fu-long ZHU Hai-bin YUAN Qing-chun YU Bin YANG Bao-qiang XU Yong-nian DAI |
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| Affiliation: | aNational Engineering Laboratory of Vacuum Metallurgy, Kunming University of Science and Technology, Kunming 650093, China;bKey Laboratory of Nonferrous Metals Vacuum Metallurgy of Yunnan Province, Kunming University of Science and Technology, Kunming 650093, China;cFaculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China |
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| Abstract: | Behaviors of TiO2 in the alumina carbothermic reduction and chlorination process in vacuum at different temperatures were investigated experimentally by means of XRD, SEM and EDS. In the preparation of materials, the molar ratio of Al2O3 to C was 1:4, and 10% TiO2 and excess AlCl3 were added. The results show that TiC is produced by C and TiO2 after TiO2 transforms from anatase into rutile gradually. In the temperature range of 1 763-1 783 K, the compounds of Ti and Al are not found in slags and condensate. The purity of aluminum reaches 98.35%, and TiO2 does not participate in alumina carbothermic reduction process and chlorination process in vacuum. |
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| Keywords: | titanium dioxide alumina carbothermic reduction chlorination |
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