TiSiW_(12)O_(40)/TiO_2催化合成己二酸二乙酯  

Catalytic synthesis of diethyl adipate by TiSiW_(12)O_(40)/TiO_2

作　　者：杨水金[1] 宋作良[1] 

机构地区：[1]湖北师范学院化学与环境工程系,湖北黄石435002

出　　处：《商丘师范学院学报》2003年第5期79-80,91,共3页Journal of Shangqiu Normal University

基　　金：湖北省教育厅重点科研基金(2002A00008)

摘　　要：首次以固载杂多酸盐TiSiW_(12)O_(40)/TiO_2为多相催化剂,通过己二酸和乙醇反应合成了己二酸二乙酯,并探讨了诸因素对产率的影响。正交实验结果表明:TiSiW_(12)O_(40)/TiO_2具有良好的催化活性,醇酸物质的量比为4.0:1,催化剂用量为反应物料总量的1.5％,反应时间1.5h,反应温度66～118℃,酯收率可达79％。The synthesis of diethyl adipate using TiSiW12O40/TiO2 as catalyst has been studied. The factors influencing the synthesis were discussed and the best conditions were found out the optimum conditions are:molar ratio of ethyl alcohol to adipic acid is 4.0:1, the quantity of catalyst is equal to 1.5% feed stock, the reaction temperature is 66-118℃, and the reaction time is 1.5 h. TiSiW12O40/TiO2 is an excellent catalyst for synthetizing diethyl adipate and its yield can reach over 79 % .

关 键 词：己二酸二乙酯 TiSiW12O40/TiO2为 固载杂多酸盐催化剂 己二酸 乙醇 酯化反应 催化活性 

分 类 号：O623.624[理学—有机化学] O643.36[理学—化学]