固体超强酸催化合成马来酸二丁酯的研究  

Study on Synthesis of Dibutyl Maleate with Solid Superacid Catalyst

作　　者：王顺梅[1] 邵长兴[2] 

机构地区：[1]新乡师范高等专科学校化学系,河南新乡453000 [2]延津县第一高级中学,河南延津453200

出　　处：《新乡教育学院学报》2006年第4期91-92,共2页

摘　　要：研究了用固体超强酸SO_4^(2-)/Fe_2O_3-TiO_2为催化剂,由马来酸和正丁醇反应合成马来酸二丁酯的最佳工艺条件。结果表明,当n(酸):n(醇)=1:3.5,催化剂用量为马来酸质量的5%,带水剂环己烷为15ml(马来酸用量为0.1mol时),反应时间为3h,酯的产率可达96%。该工艺产率高,反应时间短,无腐蚀无污染。The optimum technological conditions were studied on the synthesis of Dibutyl maleate by the reaction of maleic acid and n-butanol with SO_4~2-/ Fe_2O_3-TiO_2 as catalyst.The results showed that the yield was over 96% when molar ratio of n-butanol and maleic acid was 4.0:1,reaction time of reflux was 3.0h mass of catalyst was 5% of maleic acid.This process has many advantages such as higher yield,simple procedure,shorter reaction time,non-corrosive,non-pollution,etc.

关 键 词：固体超强酸催化剂SO42-/Fe2O3-TiO2 马来酸二丁酯 催化酯化 

分 类 号：TQ225.24[化学工程—有机化工]