阳离子树脂催化合成糠酸乙酯

Synthesis of Ethyl Furoate Catalyzed by Resinu

在阳离子树脂的催化下,糠酸与乙醇直接酯化,再经过滤、蒸馏制得合格的糠酸乙酯,其最佳工艺条件为:w(催化剂)=4.5%,n(乙醇)∶n(糠酸)(mol)=3.5∶1.0,反应温度90℃,反应时间6 h,糠酸转化率为98%,催化剂易分离,可重复使用.

Resinu is used as catalyst in the ethyl furoate reaction. The experimental results show that the esterification are that ： the reaction temperature is 90 ℃, the reaction time is 6 h, ethanol to furoate acid = 3.5 ： 1.0 （mol）, and w （catalyzer） = 4.5% of the total initial materials. Conversion of furoate acid amounts to 98%. The catalyst could be separated from reaction materials easily and could be reused.