ABSTRACT

Liquid-liquid equilibrium (LLE) data for the diethoxymethane + ethanol + solvents (ethylene glycol, 1,3- propanediol, 1,4-butanediol or formamide) ternary systems were determined at 309.15 K and at 101.3 kPa. Distribution coefficients and separation factors were calculated to evaluate the effectiveness of extracting ethanol from diethoxymethane. The reliability of the LLE data were verified by the Othmer-Tobias and Hand equations. The thermodynamic NRTL and UNIQUAC models were successfully applied to correlate the experimental LLE data of the studied systems and the results indicate that the NRTL model gives a better agreement.

Compounds

#	Formula	Name
1	C5H12O2	diethoxymethane
2	C2H6O	ethanol
3	C2H6O2	1,2-ethanediol
4	C3H8O2	propan-1,3-diol
5	C4H10O2	1,4-butanediol
6	CH3NO	formamide

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 3 1	Mass fraction - 2 ; Liquid mixture 2 Mass fraction - 2 ; Liquid mixture 1 Mass fraction - 1 ; Liquid mixture 1	Mass fraction - 1; Liquid mixture 2	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 2	Liquid mixture 2 Liquid mixture 1	Chromatography Chromatography Chromatography	11
POMD	2 1 4	Mass fraction - 2 ; Liquid mixture 2 Mass fraction - 2 ; Liquid mixture 1 Mass fraction - 1 ; Liquid mixture 1	Mass fraction - 1; Liquid mixture 2	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 2	Liquid mixture 2 Liquid mixture 1	Chromatography Chromatography Chromatography	11
POMD	2 5 1	Mass fraction - 2 ; Liquid mixture 1 Mass fraction - 2 ; Liquid mixture 2 Mass fraction - 1 ; Liquid mixture 2	Mass fraction - 1; Liquid mixture 1	Temperature, K; Liquid mixture 2 Pressure, kPa; Liquid mixture 2	Liquid mixture 1 Liquid mixture 2	Chromatography Chromatography Chromatography	9
POMD	2 6 1	Mass fraction - 2 ; Liquid mixture 1 Mass fraction - 2 ; Liquid mixture 2 Mass fraction - 1 ; Liquid mixture 2	Mass fraction - 1; Liquid mixture 1	Temperature, K; Liquid mixture 2 Pressure, kPa; Liquid mixture 2	Liquid mixture 1 Liquid mixture 2	Chromatography Chromatography Chromatography	11
POMD	3 1	Mass fraction - 1 ; Liquid mixture 2	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 2		Liquid mixture 2 Liquid mixture 1	Chromatography	1
POMD	3 1	Mass fraction - 1 ; Liquid mixture 1	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 2		Liquid mixture 1 Liquid mixture 2	Chromatography	1
POMD	1 4	Mass fraction - 1 ; Liquid mixture 2	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 2		Liquid mixture 2 Liquid mixture 1	Chromatography	1
POMD	1 4	Mass fraction - 1 ; Liquid mixture 1	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 2		Liquid mixture 1 Liquid mixture 2	Chromatography	1
POMD	5 1	Mass fraction - 1 ; Liquid mixture 1	Temperature, K; Liquid mixture 2 Pressure, kPa; Liquid mixture 2		Liquid mixture 1 Liquid mixture 2	Chromatography	1
POMD	5 1	Mass fraction - 1 ; Liquid mixture 2	Temperature, K; Liquid mixture 2 Pressure, kPa; Liquid mixture 2		Liquid mixture 2 Liquid mixture 1	Chromatography	1
POMD	6 1	Mass fraction - 1 ; Liquid mixture 1	Temperature, K; Liquid mixture 2 Pressure, kPa; Liquid mixture 2		Liquid mixture 1 Liquid mixture 2	Chromatography	1
POMD	6 1	Mass fraction - 1 ; Liquid mixture 2	Temperature, K; Liquid mixture 2 Pressure, kPa; Liquid mixture 2		Liquid mixture 2 Liquid mixture 1	Chromatography	1

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Measurement and thermodynamic modeling of ternary (liquid + liquid) equilibrium for extraction of ethanol from diethoxymethane solution with different solvents

Jia, B.[Bing], Xin, K.[Kun], Yang, T.[Tengfei], Yu, J.[Jisheng], Yu, Y.[Yingmin], Li, Q.[Qingsong]

ABSTRACT