十二烷基苯磺酸催化合成乙酸异戊酯的研究  

Synthesis of isoamyl acetate by dodecyl benzenesulfonic acid(DBSA) as catalyst

作　　者：马松艳[1] 赵东江[1] 王德新[1] 董艳萍[1] 乔秀丽[1] 白晓波[1] 

机构地区：[1]绥化学院制药与化学工程系,黑龙江绥化152061

出　　处：《化学工程师》2011年第11期10-12,共3页Chemical Engineer

基　　金：黑龙江省教育厅科学技术项目(11551557);绥化学院科研创新团队资助项目(CX2008002)

摘　　要：以异戊醇和乙酸为原料,十二烷基苯磺酸(DBSA)为催化剂,采用正交试验方法合成了乙酸异戊酯。研究了物料比、酯化时间、酯化温度和催化剂用量对酯化率的影响。确定了最佳的工艺条件为:n(酸)∶n(醇)=1∶4、催化剂用量为酸物质的量的5%、反应温度45℃、反应时间为4h,其酯化率最高可达81.57%。Isoamyl acetate was synthesized with acetic acid and isoamyl alcohol as raw materials and a dodecyl benzenesulfonic acid（DBSA） as esterification catalyst by the orthogonal experiments.The influences of feeding ratio,reaction time,reaction temperature and amount of catalyst on the esterification rate were investigated.The optimum condition was determined as follows： the ratio of acetic acid to isoamyl alcohol was 1∶4（mole ratio）,the reaction time was 4h,the reaction temperature was 45℃,the amount of the catalyst was 5%（based on moles of acetic acid） and the highest esterification rate could reach 81.57%.

关 键 词：DBSA 乙酸异戊酯 催化 合成 微乳液 

分 类 号：O621.3[理学—有机化学]