Catalytic Synthesis of Hydratropyl Acetate with Nanometer Y_2O_3 under Microwave Radiation

Hydratropyl acetate was synthesized with acetic acid and hydratropyl alcohol catalyzed by nanometer Y2O3 and accelerated with microwave irradiation.The effects of microwave irradiation power,reaction time,molar ratio of hydratropyl alcohol to acetic acid and the amounts of catalyst on esterification were discussed.The experimentation results showed that the optimum preparation conditions were: molar ratio of hydratropyl alcohol to acetic acid was 1:1.8(when hydratropyl alcohol was 0.1mol),the quantity of catalyst was 1.1% of the total feed stock,the amount of cyclohexane as the water taking reagent was 10mL,the microwave power was 350W,radiation time was 10min,the yield of hydratropyl acetate could reach 96.5%.The catalyst could be repeatedly used six times without lossing its catalytic.