Ionic Liquids as Entrainers in Extractive Distillation: Isobaric Vapor-Liquid Equilibria for Acetone + Methanol + 1-Ethyl-3-methylimidazolium Trifluoromethanesulfonate

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• 作者：A. Vicent Orchillé ; s ; Pablo J. Miguel ; Ernesto Vercher ; Antoni Mart&iacute ; nez-Andreu
• 刊名：Journal of Chemical & Engineering Data
• 出版年：2007
• 出版时间：January 2007
• 年：2007
• 卷：52
• 期：1
• 页码：141 - 147
• 全文大小：76K
• 年卷期：v.52,no.1(January 2007)
• ISSN：1520-5134

文摘

Isobaric vapor-liquid equilibria for the binary systems acetone + methanol, acetone + 1-ethyl-3-methylimidazoliumtrifluoromethanesulfonate ([emim][triflate]), and methanol + [emim][triflate] as well as the vapor-liquid equilibriumfor the acetone + methanol + [emim][triflate] ternary system have been obtained at 100 kPa using a recirculatingstill. The addition of the ionic liquid to the solvent mixture produced an important salting-out effect, and theazeotrope tended to disappear for small contents of ionic liquid. The experimental binary data sets wereindependently fitted with the electrolyte NRTL model, and the parameters of Mock's model were estimated foreach binary system. These parameters were used to predict the ternary vapor-liquid equilibrium which agreedvery well with the experimental one.