磁性固体超强酸催化合成丙酸异戊酯的研究  

Study on magnetic solid super-acid for catalytic synthesis of isoamyl propionate

作　　者：张小曼[1] 崔永春[1] 

机构地区：[1]昆明师范高等专科学校化学系,云南昆明650031

出　　处：《化学工程师》2005年第7期17-19,共3页Chemical Engineer

摘　　要：利用磁性对固体超强酸组装,制备出磁性SO2-4/ZrO2固体超强酸催化剂,应用于合成丙酸异戊酯的反应中,并研究了影响反应的因素。实验表明:丙酸0.2mol;异戊醇0.26mol;磁性催化剂1.4g;反应时间2.0h,酯化率可达96.4%。利用催化剂的磁性可将催化剂迅速分离,回收率达84.2%,并能重复使用。Magnetic solid super- acid SO4^2-/ZrO2 was prepared by chemical modifycating on solid super- acid. It was used as catalyst in the synthesis of isoamyl propionate. The influencing factoes of the reaction were investigated.Experimental results showed the best reacting was： propionic acid 0. 2, isoamyl alcohol 0. 26, magnetic, solid super-acid 1.4g, the reaction time 2.0h and the yield of esterification achieved 96.4%. The catalyst could be isolated from other matters by its magnetism. And the recycle percentage was 84.2%.

关 键 词：磁性固体超强酸 催化 合成 丙酸异戊酯 

分 类 号：TQ225.24[化学工程—有机化工]