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Isobaric Vapor–Liquid Equilibrium Data for the Quaternary System of sec-Butyl Acetate + sec-Butyl Alcohol + Dimethyl Sulfoxide + 1-Ethyl-3-methylimidazolium Acetate at 101.3 kPa

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Abstract

The isobaric vapor–liquid equilibrium (VLE) data for the quaternary system sec-butyl acetate (SBAC) + sec-butyl alcohol (SBA) + dimethyl sulfoxide (DMSO) + 1-ethyl-3-methylimidazolium acetate ([EMIm][OAc]) were measured at 101.3 kPa. The non-random two liquid (NRTL) model was used to correlate the data and the binary interaction parameters were obtained. The correlation results agreed well with the experimental data. Compared with traditional organic solvents, the mixed solvent consisted of [EMIm][OAc] and DMSO performs better on improving the relative volatility of SBAC to SBA. The mixed solvent is a promising entrainer for the separation of SBAC–SBA mixtures by extractive distillation.

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Authors and Affiliations

  1. School of Chemical Engineering and Technology, Tianjin University, 300350, Tianjin, China

    Xuemei Zhang, Qiuhua Lyu & Xianbao Cui

  2. State Key Laboratory of Chemical Engineering, Tianjin University, 300350, Tianjin, China

    Xianbao Cui

  3. Peiyang Chemical Equipment Co., Ltd, 300072, Tianjin, People’s Republic of China

    Chungui Jian

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Zhang, X., Lyu, Q., Cui, X. et al. Isobaric Vapor–Liquid Equilibrium Data for the Quaternary System of sec-Butyl Acetate + sec-Butyl Alcohol + Dimethyl Sulfoxide + 1-Ethyl-3-methylimidazolium Acetate at 101.3 kPa. J Solution Chem 51, 1409–1421 (2022). https://doi.org/10.1007/s10953-022-01200-z

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