SO_4^(2-)/TiO_2-Hβ固体超强酸催化合成乙酸正丁酯

Synthesis of n-Butylacetate with SO_4^(2-)/TiO_2-Hβ Solid Superacid Catalyst

采用均匀沉淀法制备的SO24-/TiO2-Hβ复合型固体超强酸催化剂应用于乙酸正丁酯的合成中,得出最佳合成条件为反应时间4h,原料正丁醇与乙酸的摩尔配比1.3∶1,催化剂用量为乙酸用量的3%,乙酸正丁酯的收率95.6%。

In this paper, the solid acid catalyst SO^2-4/TiO2- Hβ was prepared by homogeneous precipitation. It was used in the synthesis of n-butylacetate, the optimum synthesis conditions were investigated. The reaction time was 4 h, the mole ratio of n- butanol and acetic acid was 1.3 ： 1, and the ratio of catalyst and acetic acid was 3 %, the yield of ester was 95.6%0.