Isobaric Vapor鈥揕iquid Equilibrium of tert-Butyl Alcohol + Water + Triethanolamine-Based Ionic Liquid Ternary Systems at 101.3 kPa

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• 作者：Zhigang Zhang ; Qiang Zhang ; Qinqin Zhang ; Tao Zhang ; Wenxiu Li
• 刊名：Journal of Chemical & Engineering Data
• 出版年：2015
• 出版时间：July 9, 2015
• 年：2015
• 卷：60
• 期：7
• 页码：2018-2027
• 全文大小：458K
• ISSN：1520-5134

文摘

Isobaric vapor鈥搇iquid equilibrium (VLE) data for the tert-butyl alcohol (t-BuOH) + water + triethanolamine (TEA), t-BuOH + water + triethanolamine formic acid ([TEA][Fc]), t-BuOH + water + triethanolamine acetic acid ([TEA][Ac]), and t-BuOH + water + triethanolamine lactic acid ([TEA][Lc]) ternary systems were measured at 101.3 kPa. The results indicated that all the three ILs produced a more obvious effect on the VLE behavior of t-BuOH + water system than TEA, and eliminated the azeotropic point in the whole concentration range. [TEA][Lc] was the best solvent for the separation of the t-BuOH + water system by extractive distillation among the three ILs investigated. The experimental VLE data for the ternary systems were correlated with the NRTL model equation, and good correlations were obtained with an average relative deviation of 2.4 %.