高等学校化学学报 ›› 1999, Vol. 20 ›› Issue (7): 1091.

• 论文 • 上一篇    下一篇

用双外推法讨论固态草酸钴(Ⅱ)二水合物脱水过程的动力学机理

潘云祥, 管翔颖, 冯增媛   

  1. 天津师范大学化学系, 天津 300074
  • 收稿日期:1998-10-13 出版日期:1999-07-24 发布日期:1999-07-24
  • 通讯作者: 潘云祥,男,58岁,副教授.
  • 作者简介:潘云祥,男,58岁,副教授.
  • 基金资助:

    天津市教育委员会重点学科资助

Non isothermal Kinetics of the Dehydration Process of Cobalt(Ⅱ) Oxalate Dihydrate in Solid State Using Double Extrapolation

PAN Yun-Xiang, GUAN Xiang-Ying, FENG Zeng-Yuan   

  1. Department of Chemistry, Tianjin Normal University, Tianjin, 300074
  • Received:1998-10-13 Online:1999-07-24 Published:1999-07-24

摘要: 采用TG-DTA技术,在Coats-Redfern积分式和Ozawa公式基础上,运用双外推法对固态草酸钴(Ⅱ)二水合物脱水过程进行分段处理,确定了各段最可能机理,并求得相应动力学参数.

关键词: 双外推法, 固态草酸钴(Ⅱ)二水合物脱水过程, TG-DTA技术

Abstract: Dehydration process of cobalt(Ⅱ) oxalate dihydrate in solid state was studied by double extrapolation method based on Coats-Redfern's integral equation and Ozawa’s equation. The dehydration of CoC2O4?2H2O was described by two steps. The probable mechanisms of each step were determined. Furthermore, the corresponding kinetic parameters were obtained.

Key words: Double extrapolation, Dehydration process of CoC2O4?2H2O in solid state, TG-DTA technique

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