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Citation: Wang Yanji, Tang Jing, Li Hexuan. Study on Catalytic Behavior of Hβ Zeolite Modified by Oxides[J]. Chinese Journal of Applied Chemistry, ;1995, 12(6): 21-24. shu

Study on Catalytic Behavior of Hβ Zeolite Modified by Oxides

Department of Chemistry, Nankai University, Tianjin 300071

Received Date: 6 February 1995
Revised Date: 30 May 1995

The effect of B₂O₃ and Fe₂O₃ on the surface acidity and propylene etherification with 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 sur-face acid amount and distribution of acid strength. The stronger interaction between oxides and Hβ-Al₂O₃ enhanced the L acid amount. Meanwhile,the performance of propylene etheri-fication was obviously improved. A good relationship between propylene conversion and sur-face L acid amount was detected.
- oxide,
- Hβ-zeolite,
- propylene etherification,
- surface acidity
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