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

Phase Diagram of [Amim]Cl + Salt Aqueous Biphasic Systems and Its Application for [Amim]Cl Recovery

Deng, Y.[Yuefeng], Long, T.[Tao], Zhang, D.[Dongli], Chen, J.[Ji], Gan, S.[Shucal]
J. Chem. Eng. Data 2009, 54, 9, 2470-2473
ABSTRACT
In this study, binodal curves and tie line data of [Amim]Cl + salt (K3PO4, K2HPO4, K2CO3) + water aqueous biphasic systems (ABS) were measured and correlated satisfactorily with the Merchuk equation and Othmer-Tobias and Bancroft equations, respectively. [Amim]Cl could be recovered from aqueous solutions using the ABS, and the recovery efficiency could reach 96.80 %. The recovery efficiency was influenced by the concentrations of the salts and their Homeister series: K3PO4 greater than K2HPO4 greater than K2CO3. Our method provides a new and effective route for the recovery of hydrophilic IL using [Amim]Cl + salt + water ABS from aqueous solutions.
Compounds
# Formula Name
1 H2O water
2 K3O4P tripotassium phosphate
3 C7H11ClN2 1-allyl-3-methylimidazolium chloride
4 HK2O4P dipotassium hydrogen phosphate
5 CK2O3 potassium carbonate
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
  • 3
  • Mass fraction - 2 ; Liquid mixture 1
  • Mass fraction - 3 ; Liquid mixture 2
  • Mass fraction - 2 ; Liquid mixture 2
  • Mass fraction - 3; Liquid mixture 1
  • Temperature, K; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 1
  • Liquid mixture 2
  • OTHER
  • OTHER
  • OTHER
  • 3
  • POMD
  • 1
  • 2
  • 3
  • Mass fraction - 3 ; Liquid mixture 1
  • Mass fraction - 2; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • TITR:UFactor:4
  • 21
  • POMD
  • 1
  • 4
  • 3
  • Mass fraction - 4 ; Liquid mixture 1
  • Mass fraction - 3 ; Liquid mixture 2
  • Mass fraction - 4 ; Liquid mixture 2
  • Mass fraction - 3; Liquid mixture 1
  • Temperature, K; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 1
  • Liquid mixture 2
  • Lever Rule
  • Lever Rule
  • Lever Rule
  • 4
  • POMD
  • 1
  • 4
  • 3
  • Mass fraction - 3 ; Liquid mixture 1
  • Mass fraction - 4; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • TITR:UFactor:4
  • 18
  • POMD
  • 5
  • 1
  • 3
  • Mass fraction - 5 ; Liquid mixture 1
  • Mass fraction - 3 ; Liquid mixture 2
  • Mass fraction - 5 ; Liquid mixture 2
  • Mass fraction - 3; Liquid mixture 1
  • Temperature, K; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 1
  • Liquid mixture 2
  • Lever Rule
  • Lever Rule
  • Lever Rule
  • 3
  • POMD
  • 5
  • 1
  • 3
  • Mass fraction - 3 ; Liquid mixture 1
  • Mass fraction - 5; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • TITR:UFactor:4
  • 19