杂多酸盐异构体催化合成丁酸正戊酯  

Catalytic synthesis of n-amyl butyrate by isomerization of heteroploy acid

作　　者：肖英慧[1] 邬洪源[2] 董媛媛[1] 马荣华[1] 

机构地区：[1]齐齐哈尔大学化学与化学工程学院,黑龙江齐齐哈尔161006 [2]齐齐哈尔市第一中学校,黑龙江齐齐哈尔161000

出　　处：《高师理科学刊》2009年第1期64-67,共4页Journal of Science of Teachers＇College and University

摘　　要：研究了以(α,β1,β2,β3-)SiW11Co为催化剂催化合成丁酸正戊酯,探讨了各种因素对产品收率的影响.实验表明,β2-SiW11Co具有较好的催化活性,以β2-SiW11Co为催化剂,适宜反应条件是醇酸比为1.8︰1,反应时间为1.5 h,催化剂用量为反应物料总量的2.3%,反应温度为125～135℃,在此条件下,产品收率为85.1%.The esterification of n-amyl butyrate by using isomerization of heteropoly acid as catalyst was studied.β2-SiW11Co is an excellent catalyst and the factors influencing the synthesis were discussed. The optimum conditions are as follows molar ratio of n-amyl to butyl acid is 1.8： 1, the reaction time is 1.5 h, the quantity of catalyst is equal to 2.3% of feed stock, and the reaction temperation is 125-135℃. At optimal reactions conditions, its yield can reach 85.1%.

关 键 词：异构体 丁酸正戊酯 催化 

分 类 号：O611.4[理学—无机化学]