Experimental measurements of mutual solubility of cyclohexanone, cyclohexene and ionic liquid
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This work presents new experimental liquid–liquid equilibrium data for four ternary systems, containing cyclohexanone, cyclohexene and ionic liquids (1-butyl-3-methylimidazolium hexafluorophosphate, 1-butyl-3-methylimidazolium tetrafluoroborate, triethylammonium trifluoromethanesulfonate, 1-ethyl-3-methylimidazolium trifluoromethanesulfonate) at temperature 296.15 K and at atmospheric pressure. Compositions of ternary liquid mixtures were determined using refractometric methods. It was shown that 1-ethyl-3-methylimidazolium trifluoromethanesulfonate and 1-butyl-3-methylimidazolium hexafluorophosphate containing imidazole cations can be considered as solvent for oxidation of cyclohexene to cyclohexanone.
KeywordsCyclohexanone Cyclohexene Ionic liquid Liquid–liquid equilibrium Binodal curve Refractometric analysis
List of symbols
Coefficient of distribution of the component between layers
Weight fraction of the component
For the cyclohexanone weight fraction and distribution coefficient
Cyclohexanone in upper layer
Ionic liquid in lower layer
Temperature of the refractive index measurements
The work was carried out under support of the Russian Science Foundation 16-19-10632.
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