ABSTRACT

There is a reversible reaction (sec-butyl acetate + water sec-butyl alcohol + aceticacid) catalyzed by acetic acid in the quaternary system water + sec-butyl alcohol + sec-butyl acetate + acetic acid. In this work, the liquid-liquid equilibrium (LLE) data for this quaternary system were determined at 303.15-333.15 K at atmosphere pressure. The LLE model of this quaternary reaction system was established with consideration of the chemical equilibrium of the reversible reaction. The measured LLE data were used to correlate the binary interaction parameters of the NRTL and UNIQUAC models. The NRTL model is more suitable than UNIQUAC model for describing the LLE of this quaternary reaction system.

Compounds

#	Formula	Name
1	C2H4O2	acetic acid
2	C4H10O	butan-2-ol
3	C6H12O2	1-methylpropyl ethanoate
4	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	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

Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Liquid - liquid equilibrium for the quaternary reaction system water p sec-butyl alcohol p sec-butyl acetate p acetic acid

Li, L.[Ling], Zeng, T.[Ting], Wang, X.[Xiaoda], Ye, C.[Changshen], Qiu, T.[Ting], Huang, Z.[Zhixian]

ABSTRACT