Vapour–liquid equilibria, azeotropic data, excess enthalpies, activity coefficients at infinite dilution and solid–liquid equilibria for binary alcohol–ketone systems

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• 作者：Rima Abbas ; Jü ; rgen Gmehling
• 关键词：Vapour&#x2013 ; liquid equilibria ; Solid&#x2013 ; liquid equilibria ; Excess enthalpies ; Activity coefficients at infinite dilution ; Modified UNIFAC
• 刊名：Fluid Phase Equilibria
• 出版年：2008
• 期刊代码：32_03783812
• 类别：ce
• 出版时间：25 May 2008
• 卷：267
• 期：2
• 页码：119-126
• 文件大小：911 K

摘要

Isothermal vapour–liquid equilibria (VLE), solid–liquid equilibria and excess enthalpies have been measured for the systems cyclohexanone + cyclohexanol and 2-octanone + 1-hexanol. Additionally in this paper binary azeotropic data at different pressures for 1-pentanol + 2-heptanone and 1-hexanol + 2-octanone have been determined with the help of a wire band column. Furthermore activity coefficients at infinite dilution for methanol, ethanol, 1-butanol and 1-propanol in 2-octanone at different temperatures have been measured with the help of the dilutor technique. These data together with literature data for alcohol–ketone systems were used to fit temperature-dependent group interaction parameters for the group contribution method modified UNIFAC (Dortmund) and the group contribution equation of state VTPR.