硫酸氢钠催化合成己二酸二丁酯的研究

Catalytic Synthesis of Dibutyl Adipate by Sodium Bisulfate

以硫酸氢钠为催化剂 ,己二酸和正丁醇为原料合成己二酸二丁酯 ,考察了影响反应的因素。结果表明 ,mol醇 ∶ mol酸 =3∶ 1 ,催化剂用量为 0 .2 g(己二酸为 5 0 mmol的情况下 ) ,带水剂甲苯为 5 m L,反应时间为 1 .0 h是最适宜的反应条件 ,酯化率达 98.6%

The synthesis of dibuty adipate with butyl alcohol and adipic acid as reactants and sodium bisulfate as catalyst had been studied. The influent actors of reaction were investigated. The results showed that the appropriate conditions should be: weight of catalyst was 0.2g(weight of adipic acid was 50mmol); molar ratio of butyl alcohol to adipic acid was 3∶1; reaction time was 1.0h; the taking water reagent(toluene) was 5mL. The yield of dibutyl adipate was about 98.6%.