Abstract
Zirconium sulfate supported on γ-Al 2O 3 catalysts were prepared by impregnation of powdered γ-Al 2O 3 with zirconium sulfate aqueous solution followed by calcining in air at high temperature. For Zr(SO 4) 2/γ-Al 2O 3 samples, no diffraction line of zirconium sulfate was observed up to 50 wt.%, indicating good dispersion of Zr(SO 4) 2 on the surface of γ-Al 2O 3. The acidity of catalysts increased in proportion to the zirconium sulfate content up to 40 wt.% of Zr(SO 4) 2. 40-Zr(SO 4) 2/γ-Al 2O 3 calcined at 400 °C exhibited maximum catalytic activities for 2-propanol dehydration and cumene dealkylation. The catalytic activities for both reactions, 2-propanol dehydration and cumene dealkylation were correlated with the acidity of catalysts measured by ammonia chemisorption method.
Published Version
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