Thermodynamics Research Center, ThermoML : Journal of Chemical and Engineering Data

Phase Equilibrium Measurements of the Methacrolein-Methacrylic Acid-Water Ternary System at 101.3 kPa

Li, J.[Jie], Zhao, H.[Hui], Wang, L.[Lei], Peng, Z.[Zhijian], Li, C.[Chunshan]
J. Chem. Eng. Data 2019, 64, 12, 5523-5528
ABSTRACT
In this work, the isothermal liquid liquid equilibrium (LLE) and isobaric vapor liquid equilibrium (VLE) of the methacrolein methacrylic acid water ternary mixture were systematically measured using an LLE cell and improved Rose Williams still under atmospheric pressure. The thermodynamic consistency of LLE data and VLE data was tested by the Othmer Tobias and Van Ness methods, respectively. The NRTL, UNIQUAC, and Wilson activity coefficient models have been conducted to correlate binary parameters in prediction phase equilibrium based on experimental data. The reliability of three models in equilibrium calculations has been analyzed in detail. All three models are in good agreement with the experimental data.
Compounds
# Formula Name
1 C4H6O 2-methyl-2-propenal
2 C4H6O2 2-methyl-2-propenoic acid
3 H2O water
Datasets
The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type Compound-# Property Variable Constraint Phase Method #Points
  • POMD
  • 1
  • 2
  • 3
  • Mole fraction - 2 ; Liquid mixture 2
  • Mole fraction - 2 ; Liquid mixture 1
  • Mole fraction - 1 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Mole fraction - 1; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 2
  • Liquid mixture 1
  • Chromatography
  • Chromatography
  • Chromatography
  • 18
  • POMD
  • 1
  • 2
  • 3
  • Mole fraction - 1 ; Liquid
  • Mole fraction - 2 ; Gas
  • Mole fraction - 1 ; Gas
  • Temperature, K; Gas
  • Mole fraction - 2; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Gas
  • Chromatography
  • Chromatography
  • Chromatography
  • 13