Study on Catalytic Behavior of Hβ Zeolite Modified by Oxides

Chinese Journal of Applied Chemistry ›› 1995, Vol. 0 ›› Issue (6): 21-24.

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Study on Catalytic Behavior of Hβ Zeolite Modified by Oxides

Wang Yanji, Tang Jing, Li Hexuan

Department of Chemistry, Nankai University, Tianjin 300071

Received:1995-02-06 Revised:1995-05-30 Published:1995-12-10 Online:1995-12-10

Abstract

Abstract: The effect of B₂O₃ and Fe₂O₃ on the surface acidity and propylene etherificationwith isopropanol to isopropyl ether has been investigated by XRD, XPS,NH₃-TPD, FT-IR and chemisorption.These impregnated oxides played a great role in modifying the total surface acid amount and distribution of acid strength.The stronger interaction between oxidesand Hβ-Al₂O₃ enhanced the L acid amount.Meanwhile,the performance of propylene etheri-fication was obviously improved.A good relationship between propylene conversion and surface L acid amount was detected.

Key words: oxide, Hβ-zeolite, propylene etherification, surface acidity

Wang Yanji, Tang Jing, Li Hexuan. Study on Catalytic Behavior of Hβ Zeolite Modified by Oxides[J]. Chinese Journal of Applied Chemistry, 1995, 0(6): 21-24.

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Study on Catalytic Behavior of Hβ Zeolite Modified by Oxides

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