Catalytic synthesis of triacetate by heteroploy acid

The esterification of acetic acid and glycerol by using heteropoly acid as catalyst was studied.Effects of catalyst preparation,raw material ratio,reaction temperature and time,the type and amount of catalyst used on the ester yield was investigated.Heterpoly acid as catalysts,the condition of the reaction modeate,the amount of catalysts little,the catalytic effect better,but also don't destroy the apparatus,pollution of the final resolve small.At optimal reactions conditions,ester yield reach 97.2%.Resablue experiments show that heteropoly acid is(promising) catalyst triacetate synthesis.