Prediction of Surface Tensions of Binary Liquid Mixtures

计伟荣; 侯虞钧

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Prediction of Surface Tensions of Binary Liquid Mixtures

更新时间：2025-12-16

- Prediction of Surface Tensions of Binary Liquid Mixtures
- CIESC Journal Issue 5, (1990)
- 作者机构：
  
  浙江大学化工系,浙江大学化工系杭州,浙江工学院技木师范系,杭州
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 October 1990，
  
  Published：25 October 1990
- 稿件说明：
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计伟荣, 侯虞钧. Prediction of Surface Tensions of Binary Liquid Mixtures[J]. CIESC Journal, 1990, (5).
DOI：

计伟荣, 侯虞钧. Prediction of Surface Tensions of Binary Liquid Mixtures[J]. CIESC Journal, 1990, (5). DOI：

摘要

液体表面张力是化工传递过程中的重要物理量

因此对表面张力理论计算的研究一直十分活跃.时至今日

前人已建立了许多较为出色的纯液体及液体混合物表面张力的关联计算模型

但是工业过程常需要一些能进行预测计算的模型.有关液体混合物表面张力预测计算模型的研究

前人也已做了不少工作:Sprow和Prausnitz

基于Eckert和Prausnitz的研究成果

用溶解度参数法计算表面相活度系数

结合表面张力基本方程

建立了二元溶液表面张力的理论推算式

但该推算式只适用于简单分子溶液; Go ldsact等人从表面张力基本方程出发

假定主体相、表面相均为理想溶液

得到理想溶液表面张力的理论推算式;戎宗明等直接从Gibbs-Duhem方程得到的二元溶液表面张力的推算模型

在对一般

Abstract

An activity coefficient model for surface phases of liquid mixtures is presented on the basis of the solution theory and the theory of surface thermodynamics. Its combination with Bulter equation of surface tensions makes possible the prediction of binary solution surfaces tensions. More than twenty binary solution systems containing alkane

aromatics

alcohol

ketone

water

CS2

halogen compounds etc

are tested. The results prove that the prediction is successful and the activity model is effective.

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