非均相催化合成高纯度乳化剂单硬脂酸甘油酯

The Synthesis of Glycerol Monostearate with High Purity Catalyzed by Inhomogeneous Catalyzer

以非均相固体碱为催化剂,以硬脂酸甲酯和1,2-O-异亚丙基甘油(以下简称保护甘油)为原料制备单硬脂酸甘油酯,最佳反应条件为,m(原料保护甘油)︰m(硬脂酸甲酯)=2︰1,反应时间5 h,最佳反应温度为180℃,催化剂用量6%(占硬脂酸甲酯质量百分比),在最佳条件下,取得了93%以上的产率。

Catalyzed by inhomogeneous solid alkali, glycerol monostearate with high purity was synthesized by methyl stearate and protected glycerol. The oplimum reaction condition were as followings： the ratio of protected glycerol to methyl stearate molar was 2 ： 1, reaction time 5 h, temperature 180℃ and catalyst/methyl stearate quality percentage 6%. Under the optimal conditions, the yield reached 93%.