Vapor鈥揕iquid Equilibrium and Liquid鈥揕iquid Equilibrium of Ethyl Acetate + Ethanol + 1-Ethyl-3-methylimidazolium Acetate

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• 作者：Rui Li ; Xianbao Cui ; Ying Zhang ; Tianyang Feng ; Jialin Cai
• 刊名：Journal of Chemical & Engineering Data
• 出版年：2012
• 出版时间：March 8, 2012
• 年：2012
• 卷：57
• 期：3
• 页码：911-917
• 全文大小：332K
• 年卷期：v.57,no.3(March 8, 2012)
• ISSN：1520-5134

文摘

The vapor鈥搇iquid equilibrium (VLE) and liquid鈥搇iquid equilibrium (LLE) of the ternary system of ethyl acetate + ethanol + 1-ethyl-3-methylimidazolium acetate ([EMIM][Ac]), together with the vapor鈥搇iquid鈥搇iquid equilibrium (VLLE) for the binary system of ethyl acetate + [EMIM][Ac], were measured. The experimental VLE, LLE, and VLLE data were correlated by the nonrandom two-liquid (NRTL) equation, and the calculated results agreed well with the experimental results. The VLE and VLLE results show that [EMIM][Ac] can enhance the relative volatility of ethyl acetate to ethanol, and the azeotrope of ethyl acetate + ethanol can be eliminated. The LLE data indicate that [EMIM][Ac] is a potential solvent for the separation of ethyl acetate + ethanol via liquid鈥搇iquid extraction.