Phase equilibria of a ternary system of water plus propionic acid plus diethyl ketone

被引：11

作者：

Pahlavanzadeh, Hassan ^{[1
]}

Bakhsh, Hamid ^{[1
]}

Pazuki, Golamreza ^{[2
]}

机构：

[1] Tarbiat Modares Univ, Fac Engn, Dept Chem Engn, Tehran, Iran

[2] Malekashtar Univ Technol, Dept Biotechnol, Tehran, Iran

来源：

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN | 2007年 / 40卷 / 04期

关键词：

liquid-liquid equilibria; propionic acid; NRTL model; UNIQUAC model; diethyl ketone; LIQUID-LIQUID EQUILIBRIA; TEMPERATURES; MIXTURES; PHTHALATE; TOLUENE;

D O I：

10.1252/jcej.40.281

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Propionic acid is one of the materials that are used for making cellulosic solvent in pharmaceutical industries. Little information of equilibrium data for this material is available in the literature. In this research the liquid-liquid equilibrium data for the ternary system of (water + propionic acid + diethyl ketone) was measured at 25, 35, 45 degrees C. Complete phase diagrams were obtained by determining solubility and tie-line data. The reliability of the tie-line data was ascertained by using the Othmer and Tobias correlation. Distribution coefficients and separation factors were evaluated for an immiscibility region. The experimental tie-line data were also correlated with NRTL and UNIQUAC models and binary interaction parameters of these models have been reported. Both models satisfactorily fit obtained experimental data.

引用

页码：281 / 287

页数：7

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