文献类型：期刊文献

中文题名：Modified van Laar's Equation and Its Application to VLE of Polymer Solutions

英文题名：Modified van Laar's equation and its application to VLE of polymer solutions

作者：Yu, Chunfang[1]; Shen, Xiaoyan[1]; Liu, Guojie[1]

机构：[1]E China Univ Sci & Technol, Dept Chem, Shanghai 200237, Peoples R China

年份：2000

卷号：8

期号：1

起止页码：20

中文期刊名：Chinese Journal of Chemical Engineering

外文期刊名：CHINESE JOURNAL OF CHEMICAL ENGINEERING

收录：CSTPCD;;EI(收录号：2000245151481);Scopus;WOS:【SCI-EXPANDED(收录号:WOS:000086195700004)】；CSCD:【CSCD2011_2012】；

基金：Supported by the National Natural Science Foundation of China(No.29376236).

语种：英文

中文关键词：modified van Laar's theory; internal pressure; activity coefficient equation; polymer solution; activity coefficient at infinite dilution

外文关键词：modified van Laar's theory; internal pressure; activity coefficient equation; polymer solution; activity coefficient at infinite dilution

摘要：The original van Laar's theory has been modified. The internal pressures of components and mixture are expressed by Frank's relation and the excess entropy for mixing of components is also considered. A new activity coefficient equation, which can be satisfactorily applied to polymer solutions, is obtained. The calculated results for the VLE of 179 polymer solutions show that the accuracy of fit is evidently superior to UNIQUAC equation.
The original van Laar's theory has been modified, The internal pressures of components and mixture are expressed by Frank's relation and the excess entropy for mixing of components is also considered. A. new activity coefficient equation, which can be satisfactorily applied to polymer solutions, is obtained. The calculated results for the VLE of 179 polymer solutions show that the accuracy of fit is evidently superior to UNIQUAC equation.