杂多化合物膜在乙酸乙酯合成中的催化性能  

Catalytic performance of heteropoly compound membrane for synthesizing ethyl acetate

作　　者：邓谦[1] 彭振山[1] 蔡铁军[1] 杨发达[1] 邓彤彤[1] 

机构地区：[1]湘潭师范学院化学化工系,湖南湘潭411201

出　　处：《化学研究与应用》2003年第2期241-243,共3页Chemical Research and Application

基　　金：湖南省自然科学基金资助项目(01JJY2041);湖南省教育厅资助科研项目。

摘　　要：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.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.

关 键 词：杂多化合物膜 乙酸乙酯 合成 催化性能 催化剂 

分 类 号：O623.624.1[理学—有机化学] O643.36[理学—化学]