Synthesis of butyl acetate catalyzed by heteropoly acids under microwave irradiation

Butyl acetate was synthesized catalyzed by heteropoly acids using acetic acid and butyl alcohol under microwave irradiation. Influences of microwave irradiation power, reaction time, the amount of catalyst, acetic/butyl alcohol ratio and heteropoly acid type on the conversion of acetic acid were investigated. The optimum condition of the possess was that the conversion of acetic acid can reach 80.47% under the conditions of medium-high firepower, tungstosphoric acid(0.5g) as the catalyst at the 1.0 of acetic acid/butyl alcohol for 15 min. Compared with the tradition heat(reacting 40 min ,conversion 62.5%), the rate is enhanced and the conversion is increased.