固体超强酸SO_4^(2-)/Fe_2O_3催化合成丙酸丁酯  

Synthesis of n-butyl propionate on solid superacids SO_4^(2-)/Fe_2O_3

作　　者：汤晓君[1] 

机构地区：[1]齐齐哈尔大学应用技术学院,黑龙江齐齐哈尔161006

出　　处：《高师理科学刊》2009年第6期54-56,共3页Journal of Science of Teachers＇College and University

摘　　要：用Fe2SO4.7H2O直接焙烧制得的固体超强酸SO42-/Fe2O3作催化剂,对丙酸和丁醇的酯化反应进行了研究.结果表明,SO42-/Fe2O3具有超强酸性,对丙酸丁酯具有较好的催化性能,适宜的反应条件为:n(酸)∶n(醇)为1.0∶1.2,催化剂用量8 g/mol丙酸,反应时间2 h,丙酸的转化率达96%以上.Esterification reaction,performed with propionic acid and 1-butanol,was researched,the solid superacid SO42-/Fe2O3 was preparek by calcining Fe2SO4.7H2O directly.The results indicate that the catalytic activity and selectivity and better solid acidity of SO42-/Fe2O3.Appropriate reaction condition is proposed,the molar ratio of alcohol,acid is 1.0∶1.2,catalyst consumption is 8 g per molar hexanol,reaction time is 2 h,and the esterification rate is above 96%.

关 键 词：固体超强酸 丙酸丁酯 催化 酯化反应 

分 类 号：O621.3[理学—有机化学]