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Catalytic Conversion of Cellulose into Levulinic Acid by a Sulfonated Chloromethyl Polystyrene Solid Acid Catalyst

Authors

  • Yong Zuo,

    1. Anhui Province Key Laboratory of Biomass Clean Energy, Department of Chemistry, University of Science and Technology of China, Hefei 230026 (China), Fax: (+86) 551-360-6689
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  • Prof. Ying Zhang,

    Corresponding author
    1. Anhui Province Key Laboratory of Biomass Clean Energy, Department of Chemistry, University of Science and Technology of China, Hefei 230026 (China), Fax: (+86) 551-360-6689
    • Anhui Province Key Laboratory of Biomass Clean Energy, Department of Chemistry, University of Science and Technology of China, Hefei 230026 (China), Fax: (+86) 551-360-6689

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  • Prof. Dr. Yao Fu

    1. Anhui Province Key Laboratory of Biomass Clean Energy, Department of Chemistry, University of Science and Technology of China, Hefei 230026 (China), Fax: (+86) 551-360-6689
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Abstract

A novel solid acid catalyst, sulfonated chloromethyl polystyrene (CP) resin (CP-SO3H-1.69), was synthesized by partially substituting chlorine groups ([BOND]Cl) of CP resin with sulfonic group([BOND]SO3H). This new type solid acid contains not only acid sites, but also cellulose-binding sites ([BOND]Cl). A high yield of levulinic acid up to 65.5 % was obtained by converting microcrystalline cellulose over CP-SO3H-1.69. The high catalytic activity of CP-SO3H-1.69 was attributed to high amount of sulfonic group and chlorine on the catalyst, which is essential to keep the catalyst with great affinity to substrate.

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