钙矾石吸附水的模型及等温式

doi:10.3866/PKU.WHXB20000717

Acta Phys. -Chim. Sin. ›› 2000, Vol. 16 ›› Issue (07): 667-671.doi: 10.3866/PKU.WHXB20000717

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Adsorptive Model and Isotherm of Water on Ettringite

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

Department of Chemical Engineering,Heibei University of Science and Technology,Shijiazhuang 050018

Received:1999-10-18 Revised:2000-02-16 Published:2000-07-15
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Abstract

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

Guo Zi-Cheng, Sun Shu-Qiao, Li Jian-Jun, Chen Xian-Tuo. Adsorptive Model and Isotherm of Water on Ettringite[J]. Acta Phys. -Chim. Sin. 2000, 16(07), 667-671. doi: 10.3866/PKU.WHXB20000717

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Adsorptive Model and Isotherm of Water on Ettringite

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