reaction of formalin with acetic acid
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A new route to synthesizing acrylic acid from acetic acid and formalin by one-step aldol condensation reaction was proposed and developed. V–P/SiO2 oxide bifunctional catalysts were designed and prepared by ultrasonic impregnation method. The catalysts were characterized by XRD, BET, TEM, TG/DTA, and XPS, as well as NH3- and CO2-TPD and pyridine-FTIR methods. Catalytic performance was evaluated using a fixed-bed tubular microreactor operating with a CH3COOH/HCHO (HAc/FA) molar ratio of 10 under atmospheric pressure. Influences of the balance between acidic and alkaline sites,
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