固体超强酸SO_4^(2-)／Fe_2O_3-CoO催化合成己酸乙酯

Synthesis of isoamyl acetate by the solid superacid SO_4^(2-)/Fe_2O_3-CoO as catalyst

以固体超强酸SO42-／Fe2O3-CoO为催化剂,通过己酸和乙醇反应合成了己酸乙酯。实验结果表明,固体超强酸SO42-／Fe2O3-CoO对酯化具有较高的催化活性,反应的最佳条件为:己酸0．2mol,n(乙醇):n(己酸)=1．8:1．0,催化剂用量为0．8g(以0．2mol己酸为准),带水剂用量为12mL,反应时间为2h,其酯化率可达97％以上。

Ethyl hexanoate was synthesized from ethyl alcohol and hexanoic acid in the presence of solid superacid SO4^2-/Fe2O3-CoO .The experimental result showed that solid superacid SO4^2-/Fe2O3-CoO exhibited high catalytic activity for esterification reaction. The optimum reaction conditions were：hexanoic acid was 0.2mol, n （ethyl alcohol） ： n （hexanoic acid） = 1.8 ： 1.0, the amount of catalyst was 0.8g（when hexanoic acid was 0.2mol）, the amount of the water removing reagent was 12mL, the reacting time was 2h. The yield of esterification reached 97 %.