d-SBA-15-SO_3H介孔分子筛催化合成丁酸异戊酯  

Catalytic Synthesis of Isoamyl Butyrate with d-SBA-15-SO_3H mesoporous zeolite

作　　者：邓斌[1,2] 章爱华[3] 张晓军[2] 

机构地区：[1]湘南学院化学与生命科学系,湖南郴州423000 [2]中国科技大学合肥微尺度物质科学国家实验室,安徽合肥230026 [3]吉首大学化学化工学院,湖南吉首416000

出　　处：《化工中间体》2009年第8期43-46,共4页

基　　金：湖南省自然科学基金资助项目(07JJ3017);湖南省教育厅优秀青年科研基金项目(06B089)

摘　　要：采用自制的d-SBA-15-SO3H介孔分子筛为催化剂,异戊醇与正丁酸反应合成丁酸异戊酯,考察了催化剂用量、醇酸物质的量比、反应温度、反应时间、催化剂重复使用次数及带水剂等因素对酯化率的影响。结果表明该催化剂具有催化活性高,易分离回收,重复使用性良好等优势。最佳反应条件为:正丁酸用量为0.2mol时,醇酸物质的量比1.8,催化剂用量2.0g,反应温度130℃,反应时间2.0h,此时酯化率达97.5%。By using d-SBA-15-SO3H mesoporous zeolite as the catalyst, isoamyl alcohol and butyric acid reacted to form isoamyl butyrate. The effects of catalyst amount, molar ratio of isoamyl alcohol to butyric acid, reaction temperature, reaction time, catalyst reuse,and water-carrying agent on the yield were investigated. The experiment results showed that the catalyst had high activity, and could be separated easily and reused. The optimum reaction parameters were determined as follows： butyric acid 0.2mol, molar ratio of alcohol to acid 1.8, catalyst....02.0g, reaction temperature 130℃ and reaction time 2.0h. Under these conditions, the yield of isoamyl butyrate was up to 97.5%.

关 键 词：d—SBA-15-SO3H介孔分子筛 固体酸 催化酯化 丁酸异戊酯 

分 类 号：O621.3[理学—有机化学]