由复合硫酸盐催化剂催化合成丙酸丁酯

Catalytic synthesis of n-butylpropionate by using composite inorganic salts catalyst

在复合硫酸盐催化剂的条件下,由丙酸和正丁醇合成了高收率的丙酸丁酯。文章研究了复合硫酸盐催化剂使用量、丙酸用量和反应的时间,带水剂的选择等因素对催化合成丙酸丁酯收率的影响。实验结果表明,当丙酸和正丁醇摩尔比为1∶1.45和复合硫酸盐n_(Fe_2(SO_4)_3):n_(K_2SO_4)为3∶1、带水剂7mL时,回流反应分水68min,酯收率为99%,为最佳条件。

In this paper, it studies dosage of composite Inorganic salts catalyst, n-butyl alcohol dosage and response time, with admixture of select catalytic synthesis of n-butylpropionate and other factors on the yield effects under conditions of water combined with Composite Inorganic salts catalyst, n-butyl alcoholl alcohol and propyl acid by high-yield synthesis of n-butylpropionate . Experimental results demonstrate that Ester yields was upto 99.0% for the best conditions, when n （acid）： n （ethanol） was 1：1.45, and composite Inorganic salts is n（Fe2（SO4）3 ：n（K2O4）= 3.0：1, 7mL reaction returning water, reaction time68min.