Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Liquid phase equilibria of (water + formic acid + diethyl carbonate or diethyl malonate or diethyl fumarate) ternary systems at 298.15K and atmospheric pressure

Bilgin, M.[Mehmet], Birman, I.[Imge]
Fluid Phase Equilib. 2011, 302, 1-2, 249-253
ABSTRACT
In the scope of investigating new solvents as potential replacements for chlorocarbons or aromatic hydrocarbons for separation of carboxylic acids from dilute aqueous solution, we have focused on the dibasic esters, which have perfect properties for industrial applications. For this purpose, liquid-liquid equilibrium data for water + formic acid + solvent (diethyl carbonate or diethyl malonate or diethyl fumarate) ternary systems were investigated at 298.15 K and atmospheric pressure. The equilibrium results consisted of solubility data and tie-lines were presented in ternary phase diagrams. The reliability of the experimental tie-lines was confirmed by using Othmer-Tobias correlation. The experimental tie-line data were correlated by UNIQUAC model, which gave satisfactory representation for the systems. It is concluded that diethyl carbonate, diethyl malonate and diethyl fumarate may be adequate solvents to extract formic acid from its dilute aqueous solutions.
Compounds
# Formula Name
1 CH2O2 formic acid
2 C5H10O3 diethyl carbonate
3 C7H12O4 diethyl 1,3-propanedioate
4 C8H12O4 diethyl fumarate
5 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
  • 2
  • 5
  • Mole fraction - 1 ; Liquid mixture 1
  • Mole fraction - 5; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Titration method
  • 15
  • POMD
  • 1
  • 2
  • 5
  • Mole fraction - 2 ; Liquid mixture 1
  • Mole fraction - 5; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Titration method
  • 15
  • POMD
  • 1
  • 2
  • 5
  • Mole fraction - 1 ; Liquid mixture 2
  • Mole fraction - 1 ; Liquid mixture 1
  • Mole fraction - 5 ; Liquid mixture 1
  • Mole fraction - 5; Liquid mixture 2
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 2
  • Liquid mixture 1
  • Chromatography
  • Chromatography
  • Chromatography
  • 5
  • POMD
  • 1
  • 3
  • 5
  • Mole fraction - 1 ; Liquid mixture 1
  • Mole fraction - 5; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Titration method
  • 12
  • POMD
  • 1
  • 3
  • 5
  • Mole fraction - 3 ; Liquid mixture 1
  • Mole fraction - 5; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Titration method
  • 12
  • POMD
  • 1
  • 3
  • 5
  • Mole fraction - 1 ; Liquid mixture 1
  • Mole fraction - 5 ; Liquid mixture 2
  • Mole fraction - 1 ; Liquid mixture 2
  • Mole fraction - 5; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Chromatography
  • Chromatography
  • Chromatography
  • 5
  • POMD
  • 1
  • 4
  • 5
  • Mole fraction - 1 ; Liquid mixture 1
  • Mole fraction - 5; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Titration method
  • 18
  • POMD
  • 1
  • 4
  • 5
  • Mole fraction - 4 ; Liquid mixture 1
  • Mole fraction - 5; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Titration method
  • 18
  • POMD
  • 1
  • 4
  • 5
  • Mole fraction - 1 ; Liquid mixture 2
  • Mole fraction - 1 ; Liquid mixture 1
  • Mole fraction - 5 ; Liquid mixture 1
  • Mole fraction - 5; Liquid mixture 2
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 2
  • Liquid mixture 1
  • Chromatography
  • Chromatography
  • Chromatography
  • 5