ABSTRACT

In this work, liquid liquid equilibrium (LLE) data for ternary system water + butyric acid + diisopropyl ether (DIPE) at atmospheric pressure and temperatures of 298.15 K, 313.15 K, and 323.15 K were experimentally measured. From the resulted distribution coefficient and selectivity, we can find that diisopropyl ether is an efficient solvent to extract butyric acid. The reliability of the experimental tie-line data was ascertained through the Othmer Tobias and Hand equations. The consistency of experimental tie-line data was confirmed by the NRTL and UNIQUAC models. Both models describe the phase behavior of the studied systems accurately with very small average deviations.

Compounds

#	Formula	Name
1	C6H14O	diisopropyl ether
2	C4H8O2	butanoic acid
3	C4H8O2	2-methylpropanoic acid
4	CH4O	methanol
5	C4H10O	butan-1-ol
6	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	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	1	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	2	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	3	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	4	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	5	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	5	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	6	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	6	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	2 1 6	Mass fraction - 2 ; Liquid mixture 2 Mass fraction - 1 ; Liquid mixture 1 Mass fraction - 2 ; Liquid mixture 1	Temperature, K; Liquid mixture 1 Mass fraction - 1; Liquid mixture 2	Pressure, kPa; Liquid mixture 2	Liquid mixture 2 Liquid mixture 1	CHROM:UFactor:16 CHROM:UFactor:16 CHROM:UFactor:16	27
POMD	1 6	Mass fraction - 1 ; Liquid mixture 2	Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 2	Liquid mixture 2 Liquid mixture 1	CHROM:UFactor:16	3
POMD	1 6	Mass fraction - 1 ; Liquid mixture 1	Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 2	Liquid mixture 1 Liquid mixture 2	CHROM:UFactor:16	3

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

Tie-Line Data for Aqueous Mixtures of Butyric Acid with Diisopropyl Ether at Various Temperatures

Luo, L.[Liejin], Li, L.[Libo], Wang, H.[Huimin], Chen, Y.[Yun]

ABSTRACT