Chemical Engineering & Technology · 2013 · 34 citations · 31 references
Natural SciencesChemical EngineeringChemistryCatalysisInorganic ChemistrySeparation ScienceMagnetic SeparationMagnetism Of Inorganic CompoundsSolvent ExtractionElectrospray IonizationIonic Liquid-based SeparationMild Reaction ConditionsOil ExtractionOxidative DesulfurizationParamagnetic SpeciesSulfur Compound ExtractionSulfur Removal
Abstract Magnetic ionic liquids (MIL) are extensively used in extraction and catalytic processes. Here, a series of MIL, i.e., 1‐ n ‐butyric acid‐3‐methylimidazolium chloride/ x FeCl 3 ([C 3 H 6 COOHmim]Cl/ x FeCl 3 ; x = 0.5, 1, 1.5, 2), were synthesized and characterized by infrared spectroscopy, visible absorption spectrometry, and electrospray ionization mass spectrometry. The MIL [C 3 H 6 COOHmim]Cl/2FeCl 3 was found to be highly active for the extraction and catalytic oxidative desulfurization of a model oil under mild conditions. Of note, the removal of benzothiophene, which has been regarded as a refractory aromatic sulfur compound, could be achieved at up to 100 % in 10 min. After reaction, the MIL could be easily separated from the model oil by applying an external magnetic field, due to its paramagnetic properties.
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The distillation and volatility of ionic liquids
Martyn J. Earle, José M. S. S. Esperança, Manuela A. Gîlea et al. · Nature · 2006 · 2.1K citations
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