(Liquid + liquid) equilibria of (water + propionic acid + diethyl phthalate) at several temperatures

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• 作者：Sü ; heyla Ç ; ehreli ; Dilek Ö ; zmen and Beş ; ir Tatlı
• 关键词：LLE ; Propionic acid ; Diethyl phthalate ; UNIFAC method
• 刊名：Journal of Chemical Thermodynamics
• 出版年：2005
• 期刊代码：123_00219614
• 类别：ch
• 出版时间：2005
• 卷：37
• 期：10
• 页码：1144-1150
• 文件大小：321 K

摘要

(Liquid + liquid) equilibrium (LLE) data for (water + propionic acid + diethyl phthalate) were measured under atmospheric pressure and at T = (298.2, 303.2, 308.2, and 313.2) K. Phase diagrams were obtained by determining solubility and tie-line data. The UNIFAC model was used to correlate the experimental tie-line data. The average root-mean-square deviation between the observed and calculated mass fraction was 0.03. Distribution coefficients and separation factors were evaluated over the immiscibility regions.