Abstract
This research investigates the application of three sulfonic resins (Amberlyst-15, Dowex-G26 and Dowex Monosphere-650C) as acid heterogeneous catalysts for oxidation reaction of furfural with hydrogen peroxide solution. The reaction was carried out in a batch reactor with varied reaction time (4-24 h) and temperature (70-90 °C). The sulfonic resins were characterized as to their structure and chemical composition by N2 adsorption-desorption isotherm, Fourier transformed-infrared (FTIR) spectroscopy, acid-base titration, and scanning electron microscopy (SEM). The results showed that all three resins gave similar catalytic activities. The highest yield of succinic acid was 75.7 % in the presence of Dowex-G26 catalyst at 80 °C and 4 h.
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