VAPOR-LIQUID-EQUILIBRIUM OF ETHANOL WATER N,N-DIMETHYLFORMAMIDE

被引：12

作者：

SHEALY, GS ^{[1
]}

HAGEWIESCHE, D ^{[1
]}

SANDLER, SI ^{[1
]}

机构：

[1] UNIV DELAWARE,DEPT CHEM ENGN,NEWARK,DE 19716

来源：

JOURNAL OF CHEMICAL AND ENGINEERING DATA | 1987年 / 32卷 / 03期

关键词：

ORGANIC COMPOUNDS - WATER - Measurements;

D O I：

10.1021/je00049a024

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The low-pressure isothermal vapor-liquid equillibrium of ethanol/water/N,N-dimethylformamide (DMF) at 85 and 90 degree C has been measured. The main finding is that the addition of DMF breaks the ethanol/water azeotrope. In ethanol-rich mixtures containing 30-70 mol% DMF, the lowest relative volatility of ethanol to water is 1. 3 and this occurs at infinite dilution of water in ethanol. This suggests that ethanol and water can easily be separated by extractive distillation using DMF. A comparison with our ternary data is made of the predictions of the UNIFAC and a recently proposed solute aggregation activity coefficient model using parameters obtained from binary data.

引用

页码：366 / 369

页数：4

共 50 条

[41] Structural properties of liquid formamide -: N,N-dimethylformamide mixtures
Bushuev, YG
Zaichikov, AM
RUSSIAN CHEMICAL BULLETIN, 1998, 47 (12) : 2338 - 2347
[42] Vapour–Liquid Equilibrium for N,N-Dimethylformamide + Benzene + Thiophene via Gibbs Ensemble Molecular Simulation
Aiwu Zeng
Wenqi Chen
Jianjun Ma
Jiang Yu
Transactions of Tianjin University, 2017, (01) : 26 - 34
[43] ISOBARIC VAPOR-LIQUID-EQUILIBRIUM DATA FOR THE ETHANOL-WATER-STRONTIUM BROMIDE SYSTEM
VERCHER, E
PENA, MP
MARTINEZANDREU, A
JOURNAL OF CHEMICAL AND ENGINEERING DATA, 1994, 39 (02): : 316 - 319
[44] ISOBARIC VAPOR-LIQUID-EQUILIBRIUM FOR ETHANOL PLUS WATER PLUS COPPER(II) CHLORIDE
VERCHER, E
PENA, MP
MARTINEZANDREU, A
JOURNAL OF CHEMICAL AND ENGINEERING DATA, 1995, 40 (03): : 657 - 661
[45] N,N-DIMETHYLFORMAMIDE (DMF)
DOI, S
JOURNAL OF SYNTHETIC ORGANIC CHEMISTRY JAPAN, 1982, 40 (05) : 446 - 446
[46] Vapour–Liquid Equilibrium for N,N-Dimethylformamide + Benzene + Thiophene via Gibbs Ensemble Molecular Simulation
Aiwu Zeng
Wenqi Chen
Jianjun Ma
Jiang Yu
Transactions of Tianjin University, 2017, 23 (01) : 26 - 34
[47] Solubility diagrams of the potassium iodide-water-N,N-dimethylformamide and iodine-iodide-water-N,N-dimethylformamide systems at 25°C
T. M. Varlamova
G. V. Gerasimova
S. P. Mushtakova
Russian Journal of Physical Chemistry, 2006, 80 : 1671 - 1675
[48] Liquid-liquid equilibrium and excess enthalpies in the binary system 2-methylpentane plus N,N-dimethylformamide
Bendová, M
Rehák, K
Matous, J
Novák, JP
JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2004, 49 (05): : 1318 - 1322
[49] EFFECT OF WATER ON ENTHALPIES OF SOLUTION OF ELECTROLYTES IN N, N-DIMETHYLFORMAMIDE
TSAI, YA
CRISS, CM
JOURNAL OF CHEMICAL AND ENGINEERING DATA, 1973, 18 (01): : 51 - 53
[50] Solvation of Aniline in Mixtures of Water with N,N-Dimethylformamide and Acetonitrile
A. V. Kustov
A. V. Bekeneva
O. A. Antonova
B. P. Korolev
Russian Journal of General Chemistry, 2002, 72 : 918 - 923

← 1 2 3 4 5 →