Separation of Ethyl Acetate and Ethanol Azeotropic System by Acetate-Based Ionic Liquid

被引：0

作者：

Li, Wenxiu ^{[1
]}

Zhang, Linzi ^{[1
]}

He, Xin ^{[1
]}

Ni, Qingfeng ^{[1
]}

Zhang, Tao ^{[1
]}

机构：

[1] Shenyang Univ Chem Technol, Liaoning Prov Key Lab Chem Separat Technol, Shenyang 110142, Peoples R China

来源：

JOURNAL OF SOLUTION CHEMISTRY | 2024年 / 53卷 / 08期

基金：

美国国家科学基金会;

关键词：

Vapor-liquid equilibrium; Ethyl acetate; NRTL model; Ethanol; Ionic liquids; EXTRACTIVE DISTILLATION; PLUS METHANOL; VAPOR; EQUILIBRIUM; MIXTURE; CARBONATE;

D O I：

10.1007/s10953-023-01361-5

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Three ionic liquids (ILs)(1-ethyl-2,3-dimethylimidazolium acetate, [EMMIM][AC]; tributyl-methylammonium acetate, [N-4,N-4,N-4,N-1][AC]; and tetraethylammonium acetate, [N-2,N-2,N-2,N-2][AC]) were chosen. The vapor-liquid equilibrium (VLE) data of ternary mixtures (acetate + ethanol + IL) were measured at 101.3 KPa. NRTL equation was used to correlate the data. From NRTL model, for [N-2,N-2,N-2,N-2][AC], [EMMIM][AC], and [N-4,N-4,N-4,N-1][AC], minimum mole fractions for completely eliminating azeotrope are 0.015, 0.020 and 0.022, respectively. From the average relative volatility and sigma-profiles, it can be obtained that the separation ability order is [EMMIM][AC] > [N-2,N-2,N-2,N-2][AC] > [N-4,N-4,N-4,N-1][AC].

引用

页码：1052 / 1073

页数：22

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