Antimony pentafluoride (SbF 5)/porous metal fluorides (PMF) were prepared by impregnating PMF with SbCl 5, and then fluorinating with anhydrous hydrogen fluoride (AHF). It demonstrates excellent activity in vapor-phase catalytic fluorination and overcomes such drawbacks as hygroscopicity, corrosion and toxicity that appear while SbF 5 was used alone. Furthermore, SbF 5/PMF was characterized by means of X-ray diffraction, X-ray photoelectron spectroscopy, BET surface area measurement and SEM. Its catalytic activity was evaluated for vapor-phased fixed-bed catalytic fluorination.
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