复合固体超强酸SO_4^(2-)/TiO_2-Fe_2O_3催化合成丁酸异丁酯  

Synthesis of isobutyl butyrate catalyzed by composite solid superacid SO_4^(2-)/TiO_2-Fe_2O_3

作　　者：金华峰[1] 

机构地区：[1]安康师范专科学校化学系,陕西安康725000

出　　处：《化学研究与应用》2003年第1期69-70,共2页Chemical Research and Application

基　　金：陕西省教育厅自然科学专项基金(01JK203);安康师专自然科学基金(2002AZXZR003)资助项目

摘　　要：The composite solid superacid SO2-4/TiO2-Fe2O3(nTi∶nFe=2∶1)was prepared by the method of deveiopmental sol-gel and wet impregnation.First reported the composite solid superacid catalysis synthesized isobutyl butyrate for buthlacid and isobutyl alcohol.It was researched that the acid-alcohol rate,time,quantity and repeatly applicatiom of catalyzes had imflune upon yield of esterication reaction.The influent actors of reaction were investigated.The results showed that teh appropriate conditions should be:weight of cstalyst was 10g;molar ratio of isobutyl alcohol to buthlacid was 18∶1;reaction time was 30h;the taking water reagent (Benzene) was 15ml.The yield of isobutyl butyrate was about 985%.The acid value was:1602<Ho<1452.The composite solid superacid SO2-4/TiO2-Fe2O3(nTi∶nFe=2∶1)was prepared by the method of deveiopmental sol-gel and wet impregnation.First reported the composite solid superacid catalysis synthesized isobutyl butyrate for buthlacid and isobutyl alcohol.It was researched that the acid-alcohol rate,time,quantity and repeatly applicatiom of catalyzes had imflune upon yield of esterication reaction.The influent actors of reaction were investigated.The results showed that teh appropriate conditions should be:weight of cstalyst was 10g;molar ratio of isobutyl alcohol to buthlacid was 18∶1;reaction time was 30h;the taking water reagent (Benzene) was 15ml.The yield of isobutyl butyrate was about 985%.The acid value was:1602<Ho<1452.

关 键 词：复合固体超强酸 SO4^2-/TiO2-Fe2O3 催化剂 合成 丁酸异丁酯 

分 类 号：O623.624.4[理学—有机化学]