PRODUCTION OF ULTRAFINE TiO_2 PARTICLESBY VAPOR PHASE HYDROLYSIS OF Ti(OC_4H_9)_4 AT LOWER TEMPERATURE

胡黎明; 袁渭康; 陈敏恒; 张亚莉; 夏道富

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PRODUCTION OF ULTRAFINE TiO_2 PARTICLESBY VAPOR PHASE HYDROLYSIS OF Ti(OC_4H_9)_4 AT LOWER TEMPERATURE

更新时间：2025-12-16

- PRODUCTION OF ULTRAFINE TiO_2 PARTICLESBY VAPOR PHASE HYDROLYSIS OF Ti(OC_4H_9)_4 AT LOWER TEMPERATURE
- CIESC Journal Issue 2, (1993)
- 作者机构：
  
  华东化工学院技术化学物理研究所,华东化工学院技术化学物理研究所,华东化工学院技术化学物理研究所,上海轻工研究所,上海轻工研究所上海200237,上海200237,上海200237,上海200211,上海,200211
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 April 1993，
  
  Published：25 April 1993
- 稿件说明：
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胡黎明, 袁渭康, 陈敏恒, et al. PRODUCTION OF ULTRAFINE TiO_2 PARTICLESBY VAPOR PHASE HYDROLYSIS OF Ti(OC_4H_9)_4 AT LOWER TEMPERATURE[J]. CIESC Journal, 1993, (2).
DOI：

胡黎明, 袁渭康, 陈敏恒, et al. PRODUCTION OF ULTRAFINE TiO_2 PARTICLESBY VAPOR PHASE HYDROLYSIS OF Ti(OC_4H_9)_4 AT LOWER TEMPERATURE[J]. CIESC Journal, 1993, (2). DOI：

摘要

氧化钛超细粒子具有很高的化学活性、良好的耐侯性和耐化学腐蚀性等，可。良的光催化剂、催化剂载体或吸附剂，也是功能陶瓷、高级油漆及涂料的主要尿合成方法有液相法和气相法。液相法中最有代表性的是金属醇盐水解法［，’］。气。TIC14氧化怯L’】该法原料易得，产品粒度细，单分散性好，但反应温度高且副产品作者将金属醇盐水解反应移植至气相，利用亚微米级的金属醇盐气溶胶同水蒸气。

Abstract

Metal alkoxide hydrolysis was conducted into a vapor phase reactor. A hot nitro-gen flow in a mixing chamber carrying Ti (OC4H9)4 vapor

was mixed with a cold nitrogen low in a mixing chamber to generate submicron droplets. The droplets were hydrolysed with vater vapor at lower temperature to synthesize TiO2 ultrafine particles of high purity andnarrow size distribution. A mathematical model of perfectly mixed reactors (CSTR) in series was developed which was able to predict mean particle size as a function of operating conditions. Particle size was experimentally and theoretically found dependent on both fluid dynamic and thermodynamic conditions.

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