Abstract
In this study, sulfonated wood pulp catalysts were produced by hydrothermal carbonization of softwood pulp and functionalized using H2SO4. These newly synthesized catalysts were used in a one-pot reaction system where ionic liquid [BMIM+][Cl−] acted as a solvent and MIBK acted as the organic phase in the conversion of fructose to HMF. Using response surface methodology, molar yields as high as 98.6% were obtained at mild conditions of 112 °C and 24 min with a catalyst load of 5% weight. The catalyst was easily recovered by filtration and used four times with minor loss in catalytic activity. XRD patterns showed that the material remained stable through the reaction conditions.
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