| abstract |
A method for preparing a catalyst is herein disclosednwhich comprises the steps of impregnating a carriernwith active components, particularly a platinum-containingncompound and one or more halogen-containing compounds,ndrying the impregnated carrier, and then calcining the same,nsaid drying treatment being carried out while the impregnatedncarrier is in a drifting condition. According to thenabove method, an activity of the catalyst can be improved,nand a cracking selectivity can be reduced. |