| 氯化钛白氧化反应器壁结疤机理 |
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| 引用本文： | 姜海波,李春忠,吕志敏,丛德滋,朱以华.氯化钛白氧化反应器壁结疤机理[J].华东理工大学学报(自然科学版),2001,27(2):152-156. |
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| 作者姓名： | 姜海波 李春忠 吕志敏 丛德滋 朱以华 |
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| 作者单位： | 华东理工大学技术化学物理研究所, |
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| 基金项目： | 国家 95攻关项目 !(96-5 5 4-0 2 )，上海市科技启明星基金
!(0 0 QE14 0 45 )，国家自然科学基金资助项目 1(2 963 60 10 ) |
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| 摘 要： | 利用预燃烧直管反应器，研究氯化钛白氧化反应器内的结疤机理。氧化反应器内结疤支要起因子氧化过程生成的超细TiO2颗粒在反应器壁的沉积和烧结，反应器壁面温度越高结疤速率越快。当反应器壁面温度较低时，靠近壁面为ＴiO2颗粒堆结层，而告气体相主体的疤层发生了部分烧结。反应温度升高、反应物浓度增大时，结疤速度增大；壁面状态对结疤速率影响不大。
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| 关 键 词： | 氯化法 钛白粉 结疤 氧化反应器 |
| 文章编号： | 1006-3080(2001)02-0152-05 |
| 修稿时间： | 2000年5月30日 |
Sacling Mechanism on the Oxidation Reactor Wall in TiO2 Synthesis with Chloride Process |
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| JANG Hai bo,LI Chun zhong ,LU Zhi min,CONG De zi,ZHU Yi hua.Sacling Mechanism on the Oxidation Reactor Wall in TiO2 Synthesis with Chloride Process[J].Journal of East China University of Science and Technology,2001,27(2):152-156. |
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| Authors: | JANG Hai bo LI Chun zhong LU Zhi min CONG De zi ZHU Yi hua |
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| Institution: | JANG Hai bo,LI Chun zhong *,LU Zhi min,CONG De zi,ZHU Yi hua |
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| Abstract: | The scaling mechanism on the tubular reactor wall in TiO 2 synthesis was investigated. The formation of wall scale is mostly due to the deposition and the sintering of TiO 2 particle formed in the gas phase reaction of TiCl 4 with O 2. The higher the temperature of the reactor wall is, the faster scaling rate is. At low wall temperature, the particle packed layer is formed by powder deposition, and the scale is partly sintered at higher temperature. The formation rate increases with increasing the reaction temperature and the reactant concentration, but is affected little by the surface status of the reactor. |
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| Keywords: | chloride process titanium dioxide wall scale oxidation reactor |
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