ABSTRACT

Solubility of biomass-derived compounds in ionic liquids is an important parameter for the design of future processes incorporating ionic liquids as solvents for biorefining. Sugar alcohols such as sorbitol and xylitol are carbohydrate derivatives which have been identified as building blocks for biorefining. Therefore, in this work the solubility of these two sugar alcohols was measured experimentally within the temperature range of 288 K to 433 K, in three ionic liquids: [emim][EtSO4], Aliquat 336 (N-Methyl-N,N-dioctyloctan-1-ammonium chloride), and Aliquat [NO3] (N-Methyl-N,N-dioctyloctan-1-ammonium nitrate). In addition, the densities of the ionic liquids were also measured and correlated. Local composition models such as NRTL, e-NRTL, and UNIQUAC were successfully applied to represent the experimental solubility data. The thermodynamic functions of dissolution were also calculated from the experimental data.

Compounds

#	Formula	Name
1	C25H54ClN	N-methyl-N,N-dioctyl-1-octanaminium chloride
2	C25H54N2O3	N-methyl-N,N,N-trioctylammonium nitrate
3	C8H16N2O4S	1-ethyl-3-methylimidazolium ethyl sulfate
4	C5H12O5	xylitol
5	C6H14O6	D-sorbitol

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	11
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	11
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	7
POMD	4 2	Mass fraction - 4 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 4	Chromatography	5
POMD	5 2	Mass fraction - 5 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 5	Chromatography	5
POMD	4 1	Mass fraction - 4 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 4	Chromatography	5
POMD	4 3	Mass fraction - 4 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 4	Chromatography	5
POMD	5 1	Mass fraction - 5 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 5	Chromatography	5
POMD	5 3	Mass fraction - 5 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 5	Chromatography	5

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Solubility of xylitol and sorbitol in ionic liquids - Experimental data and modeling

Carneiro, A. P.[Aristides P.], Rodriguez, O.[Oscar], Macedo, E. A.[Eugenia A.]

ABSTRACT