Preparation of ZrO2-ZSM-5 and Its Catalytic Study of Soybean Oil Epoxidation
In this study,ZrO2-ZSM-5 was prepared by impregnation and ion-exchange methods,and the catalyst was characterized by XRD,FT-IR,SEM and the effects of calcination temperature,calcination time,and the mass ratio of ZrO2/ZSM-5 on the catalytic activity of catalytic catalysts in the catalytic epoxidation reaction of soybean oil under hydrodynamic cavitation conditions were investigated.The study revealed that the catalyst was suit-able for the preparation of soybean oil epoxidation reaction.It was shown that the suitable preparation conditions of the catalyst were:calcination temperature of 500 ℃,calcination time of 3 h,and the mass ratio of ZrO2 to ZSM-5 of 1.2∶1.0.The epoxy value of epoxidized oil reached 5.91％ by using the ZrO2-ZSM-5 catalyzed soybean oil ep-oxidation obtained under the preparation conditions,indicating that the catalyst could effectively enhance the epoxida-tion reaction effect.
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