ABSTRACT

2,3-Pentanedione, acetaldehyde and acetone are by-products found downstream in sugar manufacturing process. 2,3-Pentanedione has various food and industrial related uses, making it a product of interest. It can be recovered using extractive distillation recovery processes, whereby chemicals of similar boiling points are separated. Vaporliquid equilibrium (VLE) measurements were conducted isobarically for the systems 2,3-pentanedione + {acetaldehyde or acetone} at 100, 150 and 200 kPa. Measurements were undertaken using a moderate pressure recirculating VLE still, capable of withstanding pressures up to 350 kPa. The measured VLE data were regressed using the gamma-phi (a-o) approach and the non-random two-liquid (NRTL) activity coefficient model, which displayed satisfactory representation of the system behavior. None of the binary systems exhibit azeotropic behavior. All the binary systems displayed a positive deviation from Raoult s law.

Compounds

#	Formula	Name
1	C5H8O2	2,3-pentanedione
2	C2H4O	ethanal
3	C3H6O	acetone

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	1	Boiling temperature at pressure P, K ; Liquid	Pressure, kPa; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	17
POMD	1	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	3
POMD	2	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	1
POMD	2	Boiling temperature at pressure P, K ; Liquid	Pressure, kPa; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	12
POMD	2	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	3
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	3	Boiling temperature at pressure P, K ; Liquid	Pressure, kPa; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	14
POMD	3	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	3
POMD	2 1	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 2; Liquid Pressure, kPa; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	32
POMD	2 1	Mole fraction - 2 ; Gas	Mole fraction - 2; Liquid Pressure, kPa; Liquid	Gas Liquid	Chromatography	32
POMD	3 1	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 3; Liquid Pressure, kPa; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	35
POMD	3 1	Mole fraction - 3 ; Gas	Mole fraction - 3; Liquid Pressure, kPa; Liquid	Gas Liquid	Chromatography	35

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

Vapor Liquid Equilibrium Data for 2,3-Pentanedione + (Acetaldehyde or Acetone) at (100, 150, and 200) kPa

Naicker, S.[Sivanna], Iwarere, S. A.[Samuel A.], Naidoo, P.[Paramespri], Ramjugernath, D.[Deresh]

ABSTRACT