壳聚糖硫酸盐催化合成丁酸异戊酯的研究  

Study on synthesis of isoamyl butyrate catalyzed by chitosan sulfate

作　　者：邓斌[1] 章爱华[2] 徐安武[3] 

机构地区：[1]湘南学院化学与生命科学系,湖南郴州423000 [2]吉首大学化学化工学院,湖南吉首416000 [3]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

出　　处：《应用化工》2008年第4期355-357,共3页Applied Chemical Industry

基　　金：湖南省教育厅优秀青年科研基金项目(06B089)

摘　　要：以壳聚糖硫酸盐作催化剂,丁酸和异戊醇为原料合成了丁酸异戊酯。采用正交实验法对影响反应的因素进行了考察。结果表明,该反应的优化条件为n(醇)∶n(酸)=2.0∶1,催化剂用量为反应混合物总量的1.5%(质量分数),带水剂环己烷15 mL,回流反应60 min,酯化率可达98.4%,并且催化剂可以多次重复使用。The synthesis of isoamyl butyrate with butyric acid and isoamyl glycol as reactants and chitosan sulfate as catalyst was studied. The influence factors were investigated by experiments arranged by orthogonal design. The results showed that the optimum conditions were as follows ： the mole ratio of isoamyl glycol to butyric acid was 2.0 ： 1 ,the amount of catalyst was 1.5% of the mass of mixture charge in the reaction ,cyclohexane was suitable water-carrying agent which the optimum use level was 15 mL and the reaction time was 60 min. The esterification yield of isoamyl butyrate could reach 98.4%, and the catalyst could achieve repetitive use.

关 键 词：丁酸异戊酯 催化合成 壳聚糖硫酸盐 

分 类 号：TQ655[化学工程—精细化工]