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%.
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
关键词
异构体
丁酸正戊酯
催化
isomerization
n-amylbutyrate
catalysia
