4.2 Article

Isobaric Vapor-Liquid Equilibrium of Binary Systems of 1-Pentanol + Butyl Butyrate, 1-Pentanol + N-Formylmorpholine, and p-Xylene plus Butyl Butyrate at 101.3 kPa

Journal

JOURNAL OF CHEMICAL AND ENGINEERING DATA
Volume 66, Issue 7, Pages 2874-2881

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/acs.jced.1c00250

Keywords

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Funding

  1. National Natural Science Foundation of China [22078166, 21808117]

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The effects of different solvents on the separation efficiency of a p-xylene and 1-pentanol azeotropic system are investigated, and vapor-liquid equilibrium data of several binary systems are measured and correlated using various models to obtain interaction parameters.
In this work, the effects of N-methyl pyrrolidone, N,N-dimethylformamide, cyclohexanol, butyl butyrate, and N-formylmorpholine on the separation efficiency of a p-xylene and 1-pentanol azeotropic system are investigated, and the best solvent is selected from these solvents. The vapor-liquid equilibrium data of binary systems of 1-pentanol + butyl butyrate, 1-pentanol + N-formylmorpholine, and p-xylene + butyl butyrate are measured using a modified Rose-type circulating still under 101.3 kPa. In order to check the thermodynamic consistency of the experimental vapor-liquid equilibrium data, the Herington and Van Ness methods are used. In addition, the nonrandom two-liquid, universal quasichemical, and Wilson models are used to correlate the experimental data of binary systems, and the interaction parameters of binary systems are obtained.

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