Isobaric vapor-liquid equilibria and densities for the system ethyl 1,1-dimethylethyl ether+2-propanol

被引：5

作者：

Segura, H ^{[1
]}

Mejía, A

Reich, R

Wisniak, J

Loras, S

机构：

[1] Univ Concepcion, Dept Chem Engn, Concepcion, Chile

[2] Ben Gurion Univ Negev, Dept Chem Engn, IL-84105 Beer Sheva, Israel

[3] Univ Valencia, Fac Quim, Dept Ingn Quim, E-46100 Valencia, Spain

来源：

PHYSICS AND CHEMISTRY OF LIQUIDS | 2002年 / 40卷 / 06期

关键词：

vapor-liquid equilibrium; fuel oxygenating additive; unleaded gasoline; ether; ETBE;

D O I：

10.1080/0031910029003269

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：

Vapor-liquid equilibrium (VLE) data at 50, 75, and 94 kPa have been determined for the binary system ethyl 1, 1-dimethylethyl ether + 2-propanol, in the temperature range 323-344 K. The measurements were made in an equilibrium still with circulation of both the vapor and liquid phases. Excess volumes have been also determined from density measurements at 298.15 K. The system exhibits positive deviation from ideal behavior and azeotropic behavior in the range of experimental pressures. The excess volume of the system is negative over the whole mole fraction range. The activity coefficients and boiling points of the solutions were well correlated with the mole fraction by the Wohl, Wilson, UNIQUAC, NRTL equations and predicted by the UNIFAC group contribution method. Excess volume data were correlated using the Redlich-Kister expansion.

引用

页码：685 / 702

页数：18

共 22 条

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