固体超强酸SO_4^(2-)/TiO_2-Fe_2O_3催化合成丁酸丁酯的试验研究

Application of Orthogonal Test Method on Catalytic Synthesis of n-Butyl Butyrate with Solid Superacid SO_4^(2-)/TiO_2-Fe_2O_3

利用正交试验找到用SO42-/TiO2-Fe2O3固体超强酸催化合成丁酸丁酯的最佳反应条件。即反应时间4.0h,催化剂用量为酸质量的1.4%,酸醇比1.2:1,验证实验产率为97.6%。且该实验反应时间相对短,无腐蚀无污染,催化剂可回收可重复使用。

By using the orthogonal test method synthesis of n-butyl butyrate with solid superacid SO4^2-/TiO2-Fe2O3 The factors influencing the yield of product and the optimum reaction conditions were discussed. The optimum conditions are as follows： the molar ratio of acid to alcohol was 1.2：1,quantity of catalyst is equal to 1.4% feed stock ,and the reaction time is 4 hour .the yield can be up to 97.6%.