用活性碳固载酸性催化剂合成丁酸异丁酯

Synthesis of iso-butyl butyrate using acid catalyst supported on granular active carbon

以颗粒状活性碳固载对甲苯磺酸作催化剂,通过正丁酸和异丁醇反应合成丁酸异丁酯,并探讨了诸因素对酯化产率的影响。实验结果表明,活性碳固载对甲苯磺酸具有良好的催化活性,酸醇物质的量比为1∶1.4,催化剂用量为反应物总量的5.2%,反应时间75m in,酯化产率可达98.26%。

Iso - Butyl butyrate was synthesized using p - toluent sulfonic acid supported on granule activated carbon as catalyst. Some influencing factors were discussed. It was showed that p - toluent sulfonic acid supported on activated carbon was as excellent catalyst. The yield of iso - butyl butyrate could reach 98.26% When the mo- lar ratio of iso - butyl alcohol to n - butyric acid of 1 ： 1.4, reaction time of 75min, the dosage of catalyst based on total reactants 5.2%.