高环氧值环氧大豆油制备工艺的研究

Preparation of epoxidized soybean oil with high epoxy value

研究了用一种新型催化剂制备环氧值大于6.8%的环氧大豆油的新方法,考察了加料方式、反应时间、反应温度、双氧水用量、催化剂用量对环氧值的影响,确定了环氧大豆油的最佳制备条件:采用逐步加料,按m(大豆油):m(20%双氧水):m(催化剂)=100:(85～100):(0.5～1)的比例加料,反应时间9h,反应温度55℃。

A new method for preparing epoxidized soybean oil whose epoxy value was more than 6. 8 by a new type of catalyst was introduced. The influencing factors on the epoxy value of the product , such as reaction time , reaction temperture, dosage of catalyst, dosage of H2O2, were discussed. The optimum conditions were determined as follows ： adding material step by step, mass ratio,of soybean oil to H2O2 （ concentration 20% ） to catalyst 100：（85 ～ 100 ） ： （0.5 - 1 ）, reaction time 9 h, temperature 55℃.