The catalytic epoxidation of soybean oil with hydrogen peroxide as oxidant has been accomplished using HZSM-5-, HYand Hß- zeolite catalysts. The prepared catalysts are characterized by XRD, FTIR, and BET surface area. The catalytic epoxidation of soybean oil is studied as a function of time. The results show that all three catalysts exhibit higher conversion and selectivity of epoxidized soybean oil. Optimized protocol provides 85 %, 83 % and 70.55 %, conversion, selectivity and yield, respectively with HZSM-5 catalyst. The reaction occurs inside the pores of the zeolite framework via insitu formation of performic acid which further catalyzed by acid sites.

中文翻译：

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在沸石存在下通过原位形成过酸对大豆油进行环氧化

以HZSM-5-、HY和Hß-沸石催化剂为催化剂，以过氧化氢为氧化剂对大豆油进行催化环氧化。所制备的催化剂通过XRD、FTIR和BET比表面积进行表征。研究了大豆油的催化环氧化随时间的变化。结果表明，三种催化剂都表现出较高的环氧化大豆油转化率和选择性。优化的方案使用 HZSM-5 催化剂分别提供了 85%、83% 和 70.55% 的转化率、选择性和产率。该反应通过原位形成过甲酸而在沸石骨架的孔内发生，过甲酸进一步被酸位催化。