Distillable Acid–Base Conjugate Ionic Liquids for Cellulose Dissolution and Processing


  • Supported by Forest Cluster Ltd. as part of the Future Biorefinery (FuBio) project.


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Heating up: Improved recyclability is necessary for ionic liquids destined for wood-based bioprocessing platforms. New “distillable” molten acid–base conjugates efficiently dissolve cellulose at temperatures of 100 °C. Increased temperature induces a shift of the acid–base equilibrium toward the neutral species (see picture, TMG=1,1,3,3-tetramethylguanidine), thus affording a vapor pressure and allowing for distillation of the mixture.