Isobaric Vapor-Liquid Equilibria for Methyl Acetate + Methanol + 1-Ethyl-3-methylimidazolium Trifluoromethanesulfonate at 100 kPa

详细信息    查看全文

• 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：May 2007
• 年：2007
• 卷：52
• 期：3
• 页码：915 - 920
• 全文大小：88K
• 年卷期：v.52,no.3(May 2007)
• ISSN：1520-5134

文摘

Isobaric vapor-liquid equilibria (VLE) for the binary systems methyl acetate + methanol and methyl acetate +1-ethyl-3-methylimidazolium trifluoromethanesulfonate ([emim][triflate]) as well as the VLE for the methyl acetate+ methanol + [emim][triflate] ternary system have been obtained at 100 kPa using a recirculating still. Theexperimental binary data sets were independently fitted with the electrolyte NRTL model, and the parameters ofMock's model were estimated for each binary system. These parameters, together with those early obtained formethanol + [emim][triflate], were used to predict the ternary VLE, which agreed reasonably with the experimentalvalues. The results suggest that the addition of [emim][triflate] to the methyl acetate + methanol mixture producedan important salting-out effect, and the azeotrope disappears when the mole fraction of ionic liquid in the liquidphase is greater than 0.129.