物理化学学报 >> 2000, Vol. 16 >> Issue (07): 667-671.doi: 10.3866/PKU.WHXB20000717

研究简报 上一篇    

钙矾石吸附水的模型及等温式

郭子成, 孙淑巧, 李建军, 陈贤拓   

  1. 河北科技大学化工系,石家庄 050018
  • 收稿日期:1999-10-18 修回日期:2000-02-16 发布日期:2000-07-15
  • 通讯作者: 郭子成

Adsorptive Model and Isotherm of Water on Ettringite

Guo Zi-Cheng, Sun Shu-Qiao, Li Jian-Jun, Chen Xian-Tuo   

  1. Department of Chemical Engineering,Heibei University of Science and Technology,Shijiazhuang 050018
  • Received:1999-10-18 Revised:2000-02-16 Published:2000-07-15
  • Contact: Guo Zi-Cheng

关键词: 钙矾石, 吸附模型, 等温方程, 特性方程

Abstract:

The adsorption isotherm of water on ettringite was determined by an automatic microelectronic thermobalance. The adsorptive behavior of water on ettringite was analyzed by the experimental results. A modified Langmuir model of adsorption was used and the isotherm equation was derived. A characteristic equation for adsorption of water on ettringite was obtained by simulation with experimental data. Each adsorption isotherm at temperature 10-40 ℃could be derived conveniently from the characteristic equation.

Key words: Ettringite, Water adsorption, Model, Isotherm equation, Characteristic equation