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无机材料学报

无机材料学报

• 研究论文 • 上一篇    下一篇

云母钛制备过程中钛盐水解行为研究

周静红; 肖文德; 顾燕芳+; 古宏晨+; 胡黎明+   

  1. 华东理工大学联合化学反应工程研究所; 上海200237; 华东理工大学国家超细粉末工程研究中心, 上海 200237
  • 收稿日期:1996-03-29 修回日期:1996-04-19 出版日期:1997-06-20 网络出版日期:1997-06-20

Study on Hydrolysis of Ti(SO4)2 during the Preparation of Titania Coated Mica Pigments

ZHOU Jinghong; XIAO Wende; GU Yanfang+; GU Hongchen+; HU Liming+   

  1. Unilab Research Center of Chemical Reaction Enyineering; East China University of Science andTechnology Shanghai 200237 China; +National Engineering Research Center of Ultrafine Powder; East China University of Science and Technology Shanghai 200237 China
  • Received:1996-03-29 Revised:1996-04-19 Published:1997-06-20 Online:1997-06-20

PDF (PC)

842

被引次数

32

摘要： 本文通过化学分析方法研究了初始钛盐浓度及反应温度对云母钛制备过程的影响．结果表明初始浓度及反应温度均为影响制备过程水解行为的敏感因素．云母钛制备过程的水解产物水合氧化钛对水解过程有自催化作用，其水解活化能为93．8kJ／mol，低于硫酸钛溶液的水解活化能（140．4kJ／mol）．

关键词: 云母钛, 水解, 自催化, 水合氧化钛

Abstract: The influence of the initial concentration of titanium sulfate and reaction temperature onthe preparation of mica pearl pigments was studied by chedrical analysis method. The resultsindicated that both the initial concentration and the reaction temperature are sensitive faCtors inhydrolysis. The hydrolysis product self catalyzes the hydrolysis process. Also the action energyobtAlNed from the relation of temperature and the degree of hydrolysis of Ti4+ in the preparationof pigments(91.8kJ/mol) was lower than that in the titanium sulfate solution(140.4kJ/mol).

Key words: mica titania, hydrolysis, self catalyze, hydrous titania