Abstract:The mixture of aqueous ethanol and ionic liquid (IL) 1-butyl-3-methylimidazolium bromine ([Bmin]Br) was used to treat woody biomass, and different analysis methods such as I H-NMR, GC-MS, HPAEC, and FTIR were used to determine the efficiency of separation and the products. It is shown that macromolecules of lignin were degraded and dissolved into the solvent mixture, and were separated by adding anti-solvent into the solution. The presence of ionic liquid enhanced the hydrogen bonding capacity of the solvent, … Show more
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