含铈固体超强酸SO_4^(2-)/ZrO_2-CeO_2催化合成乙酸丁酯的研究

Study on the Catalytic Synthesis of n-Butyl Acetate by the Solid Superacid SO_4^(2-) /ZrO_2-CeO_2

以固体超强酸 SO42 - / Zr O2 - Ce O2 作催化剂 ,冰醋酸和正丁醇为原料合成了乙酸丁酯。采用正交实验法对影响反应的因素进行了考察。结果表明 :最佳反应条件为 n(醇 )∶ n(酸 ) =2∶ 1,催化剂用量为反应混合物总量的 1.5 %(质量分数 ) ,反应时间为 3h,酯化率可达 92 .6 %。

The synthesis of n-butyl acetate with acetic acid and n-butanol as reactants and solid super acid SO 4 2- /ZrO 2-CeO 2 as catalyst was studied.The influence factors were investigated by experiments arranged by orthogonal design.The results showed that the optimum conditions were as follows: the molar ratio of n-butanol to acetic acid was 2∶1, the amount of catalyst was 1.5% of the mass of mixture charge in the reaction , and the reaction time was 3h . The esterification yield of n-butyl acetate was about 92.6%.