Zeolite Fe-MFI was synthesized and applied as catalysts in the liquid-phase dehydration of 1-phenylethanol (PHE). The ferrum may influence the nucleation/crystallization processes, the crystal size is varied with the ferrum content. However, all the ferrum were incorporated into the framework when the Fe:Si = 0.005–0.025. In the PHE dehydration, the extra-framework ferrum is inactive. Nevertheless, the Fe-MFI is highly active, a PHE conversion of about 90% and a styrene selectivity >99% were achieved. The Fe-MFI with 1.5–1.8 mmol/g acid sites and Brönsted to Lewis in the 0.13–0.18 range is preferred. Moreover, the Fe-MFI could be reused for at least five times.

合成了Fe-MFI沸石，并将其用作催化剂在1-苯基乙醇（PHE）的液相脱水中。铁可能影响成核/结晶过程，晶体尺寸随铁含量而变化。但是，当Fe：Si = 0.005-0.025时，所有的铁都被结合到框架中。在PHE脱水中，骨架外铁不活跃。然而，Fe-MFI具有高活性，PHE转化率约为90％，苯乙烯选择性> 99％。具有1.5-1.8 mmol / g酸位和Brönsted到Lewis的0.13-0.18范围内的Fe-MFI是优选的。而且，Fe-MFI可以重复使用至少五次。