ABSTRACT

In this work, liquid phase compositions for mixtures of water + methanol + ethyl methyl carbonate (EMC) + heptane, water + ethanol + EMC + heptane, and water + methanol + EMC, water + ethanol + EMC, and water + EMC + heptane at 25 deg C were measured at atmospheric pressure. The modified UNIQUAC activity coefficient model was employed to correlate the experimental tie-line data, and the results were compared with ones obtained with the extended UNIQUAC model. The consistency of the measured tie-line data was ascertained by applying the Othmer Tobias equation.

Compounds

#	Formula	Name
1	C4H8O3	ethyl methyl carbonate
2	CH4O	methanol
3	C2H6O	ethanol
4	C7H16	heptane
5	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	2 1 5	Mole fraction - 2 ; Liquid mixture 1 Mole fraction - 2 ; Liquid mixture 2 Mole fraction - 5 ; Liquid mixture 2	Mole fraction - 5; Liquid mixture 1	Temperature, K; Liquid mixture 2 Pressure, kPa; Liquid mixture 2	Liquid mixture 1 Liquid mixture 2	Chromatography Chromatography Chromatography	9
POMD	3 1 5	Mole fraction - 3 ; Liquid mixture 2 Mole fraction - 3 ; Liquid mixture 1 Mole fraction - 5 ; Liquid mixture 1	Mole fraction - 5; Liquid mixture 2	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 1	Liquid mixture 2 Liquid mixture 1	Chromatography Chromatography Chromatography	8
POMD	4 1 5	Mole fraction - 5 ; Liquid mixture 2 Mole fraction - 1 ; Liquid mixture 1 Mole fraction - 5 ; Liquid mixture 1	Mole fraction - 1; Liquid mixture 2	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 1	Liquid mixture 2 Liquid mixture 1	Chromatography Chromatography Chromatography	8
POMD	1 5	Mole fraction - 5 ; Liquid mixture 1	Pressure, kPa; Liquid mixture 2 Temperature, K; Liquid mixture 2		Liquid mixture 1 Liquid mixture 2	Chromatography	1
POMD	1 5	Mole fraction - 5 ; Liquid mixture 2	Pressure, kPa; Liquid mixture 2 Temperature, K; Liquid mixture 2		Liquid mixture 2 Liquid mixture 1	Chromatography	1

Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Measurement and Correlation of Liquid Liquid Equilibrium for Quaternary Systems of Water + Methanol or Ethanol + Ethyl Methyl Carbonate + Heptane at 25 deg C

Chen, Y.[Yao], Cheng, K.[Kai], Feng, W.[Wanxia], Zhang, Q.[Quanzhou]

ABSTRACT