Isobaric vapor-liquid equilibria of maleic anhydride-DIBE system using a small modified ebulliometer

被引：0

作者：

Chen, L ^{[1
]}

Tian, YL ^{[1
]}

Zhao, XF ^{[1
]}

Fu, HF ^{[1
]}

Li, YB ^{[1
]}

机构：

[1] Tianjin Univ, Dept Chem, Sch Sci, Tianjin 300072, Peoples R China

来源：

ACTA PHYSICO-CHIMICA SINICA | 2004年 / 20卷 / 01期

关键词：

maleic anhydride; DIBE (di-isobutylhexahydrophthalate); NRTL equation; isobaric vapor-liquid equilibrium;

D O I：

10.3866/PKU.WHXB20040118

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

T, p data for Maleic anhydride and DIBE(di-isobutylhexahydrophthalate) at different feed compositions(q) have been measured with a small modified ebulliometer and T, q data under different pressures have been obtained through interpolation. The vapor-liquid equilibrium data have been calculated by means of the parameters of NRTL equation optimized by the simplex method. The azeotropes are found to change obviously with the pressures. The azeotropes tend to disappear when the pressure is lowered to 20 kPa.

引用

页码：85 / 89

页数：5