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2016•Journal of Chemical & Engineering DataRequires access

Liquid–Liquid Equilibria for the Ternary System n ‑Butyl Acetate + Pyrocatechol + Water at Different Temperatures at 101.3 kPa

Baohe Wang, Mingjie Rong, Pinpin Wang, Shuang Chen

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Abstract

Abstract Liquid–liquid equilibria (LLE) data for the ternary system of n-butyl acetate + pyrocatechol + water were measured at 101.3 kPa over the temperature range of 298.15–318.15 K. Phase diagrams were obtained by determining the tie-line data. The LLE experimental data for the system were correlated with the nonrandom two-liquid (NRTL) and universal quasichemical (UNIQUAC) models. The average root-mean-square deviations (RMSD) of the NRTL and UNIQUAC models were 0.0114 and 0.0200. Both models correlated the experimental tie-line data successfully, while the correlation of the UNIQUAC model was inferior to that of the NRTL model.

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Abstract Liquid–liquid equilibria (LLE) data for the ternary system of n-butyl acetate + pyrocatechol + water were measured at 101.3 kPa over the temperature range of 298.15–318.15 K. Phase diagrams were obtained by determining the tie-line data. The LLE experimental data for the system were correlated with the nonrandom two-liquid (NRTL) and universal quasichemical (UNIQUAC) models. The average root-mean-square deviations (RMSD) of the NRTL and UNIQUAC models were 0.0114 and 0.0200. Both models correlated the experimental tie-line data successfully, while the correlation of the UNIQUAC model was inferior to that of the NRTL model.

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Available abstract

Abstract Liquid–liquid equilibria (LLE) data for the ternary system of n-butyl acetate + pyrocatechol + water were measured at 101.3 kPa over the temperature range of 298.15–318.15 K. Phase diagrams were obtained by determining the tie-line data. The LLE experimental data for the system were correlated with the nonrandom two-liquid (NRTL) and universal quasichemical (UNIQUAC) models. The average root-mean-square deviations (RMSD) of the NRTL and UNIQUAC models were 0.0114 and 0.0200. Both models correlated the experimental tie-line data successfully, while the correlation of the UNIQUAC model was inferior to that of the NRTL model.

Key concepts: UNIQUAC, Non-random two-liquid model, Thermodynamics, Ternary operation, Root mean square, Liquid liquid, Ternary numeral system, Phase (matter)

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Liquid–Liquid Equilibria for the Ternary System n ‑Butyl Acetate + Pyrocatechol + Water at Different Temperatures at 101.3 kPa — Research Paper | ScholarLens