Phase equilibria study of binary and ternary mixtures of {N-octylisoquinolinium bis{(trifluoromethyl)sulfonyl}imide + hydrocarbon, or an alcohol, or water}

Phase Equilibria for Binary Systems Containing Ionic Liquid With Water or Hydrocarbons

“…Strong interactions occurred between the π-electrons delocalized in the aromatic structure with the polar ionic liquids, especially with the pyridinium cation, which resulted in better solubility. Consequently, in this case, the main role of solubility, apart from van der Waals interactions and packing effects, was to induce dipole interactions (Marciniak et al, 2010;Marciniak et al, 2011;Ferreira et al, 2011;Domanska et al, 2012 N] + toluene) used in this study provided evidence that suggested the emergence of the lower critical solution temperature (LCST) phenomenon, where the phase separation of the solution occurs at high temperatures. Moreover, the experimental data (Lachwa et al, 2006); Domańska et al, 2009;Domanska et al, 2010;Marciniak et al, 2010) …”

Olefin / Paraffin separation using Task-Specific Materials based on Ionic Liquids

“…[5][6][7] The mutual solubility of n-hexane with a wide range of ILs appears to be lower than that of 1-hexene. [8,9] This is not surprising as in general ILs are considered to be immiscible with paraffins, although there are exceptions particularly when the alkyl chain lengths on the cation (or anion) are large. Based on these experimental observations, it was decided to investigate 1-hexene and n-hexane separation using liquid-liquid extraction, thereby exploiting the different relative solubilities of 1-hexene and n-hexane in the selected IL, i.e.…”

Equilibria and correlation of systems involving 1-hexyl-3-methylpyridinium trifluoromethanesulfonate

“…If the number of experimental studies on phase equilibria involving systems with water, oil and IL is really scarce in the literature, their modelling is even less studied. Systems where only a biphasic region is found have been modelled using activity coefficient models [13][14][15] or COSMO-SAC. 14,15 Domanska et al 13 proposed the use of N-octylisoquinolinium bis(tri-uoromethylsulfonyl)imide to recover 2-phenylethanol from aqueous solutions produced in its bio-synthesis.…”