CATALYSTS FOR USE IN HYDROCARBON CONVERSION REACTIONS AND CONTAINING ONE DOPING METAL CHOSEN FROM THE GROUP CONSISTING OF TITANIUM, ZIRCONIUM, HAFNIUM, COBALT, NICKEL, ZINC, THE LANTHANIDES AND ALKALIAND ALKALINE-EARTH METALS

摘要

THE PRESENT INVENTION RELATES TO A CATALYST COMPRISING :- A MATRIX CONSISTING OF A MIXTURE OF h TRANSITION ALUMINA, g TRANSITION ALUMINA, AND- AT LEAST ONE DOPING METAL CHOSEN FROM THE GROUP MADE UP OF TITANIUM, ZIRCONIUM, HAFNIUM, COBALT, NICKEL, ZINC, THE LANTHANIDES, THE ALKALI METALS AND ALKALINE-EARTH METALS, - AT LEAST ONE HALOGEN CHOSEN FROM THE GROUP MADE UP OF FLUORINE, CHLORINE, BROMINE AND IODINE, - AT LEAST ONE NOBLE METAL FROM THE PLATINUM GROUP, AND- AT LEAST ONE PROMOTER METAL CHOSEN FROM THE GROUP MADE UP OF TIN, GERMANIUM, INDIUM, GALLIUM, THALLIUM, ANTIMONY, LEAD, RHENIUM, MANGANESE, CHROMIUM, MOLYBDENUM AND TUNGSTEN.