【Abstract】 In this paper,the phosphotungsten heteropoly acid catalytic membrance supported on porous titanium plate was prepared by dissolving the heteropoly acid in organic solvent then impregnating it on porous titanium plate.The catalytic performance of the catalyst for synthesizing ethyl acetate was studied with self-made membrance reactor.The effects of the reaction temperature and the radio of acid to alcohol on the reaction were tested.The results show that on temperature 165℃～175℃ and n(acetic acid)/n(alcohol)=175,conversion of alcohol is 9073%,productivity of ester is 8744% and selectivity of ester is 9639%.It suggests that the catalyst may be a potential catalyst for the reaction.更多还原