ABSTRACT

The present work is focused on the effect of temperature on extraction of gallic acid using Aliquat 336, tri-n-butyl phosphate and tri-n-octylamine in hexanol and octanol. Distribution coefficient, loading ratio, percent extraction, equilibrium complexation constant, water coextraction, enthalpy, and entropy change were evaluated for various acid extractant diluent combinations with varying temperature. The extraction of GA was found to be highly exothermic at lower molality of TBP in octanol with evaluated enthalpy change as -28743 J/mol. The extraction of gallic acid process was favored at low temperature as the process was evaluated as an exothermic in nature. Maximum extraction efficiency of 97.3% was observed at higher molality of Aliquat 336 in hexanol at lower temperature.

Compounds

#	Formula	Name
1	C7H6O5	3,4,5-trihydroxybenzoic acid
2	C6H14O	hexan-1-ol
3	C8H18O	octan-1-ol
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	Constraint	Phase	Method	#Points
POMD	2 1 4	Molality, mol/kg - 1 ; Liquid mixture 2	Molality, mol/kg - 1; Liquid mixture 1 Temperature, K; Liquid mixture 2	Pressure, kPa; Liquid mixture 2	Liquid mixture 2 Liquid mixture 1	chromatography	16
POMD	3 1 4	Molality, mol/kg - 1 ; Liquid mixture 2	Molality, mol/kg - 1; Liquid mixture 1 Temperature, K; Liquid mixture 2	Pressure, kPa; Liquid mixture 2	Liquid mixture 2 Liquid mixture 1	chromatography	16

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

Effect of Temperature on Reactive Extraction of Gallic Acid Using Tri-n-butyl Phosphate, Tri-n-octylamine and Aliquat 336

Rewatkar, K.[Kalpana], Shende, D. Z.[Diwakar Z.], Wasewar, K. L.[Kailas L.]

ABSTRACT