Abstract:
THE METHOD COMPRISES INCORPORATING SILICA INTO THE CATALYST AFTER THE CATALYST HAS BEEN FORMED INTO DESIRED SHAPES TO FORM A SILICA-IMPREGNATED CATALYST, DRYING AND CALCINING IN AIR THE SILICA-IMPREGNATED CATALYST. THE SILICA IS IMPREGNATED THEREIN TO PROVIDE AN AMOUNT BETWEEN ABOUT 1 WEIGHT PERCENT AND ABOUT 20 WEIGHT PERCENT, BASED UPON THE WEIGHT OF THE CATALYST.
Abstract:
A NOVEL CRYSTALLINE ALUMINO-SILICATE CONTAINING FLUORINE INCORPORATED INTO THE CRYSTALLINE STRUCTURE IS PREPARED BY TREATMENT OF AN ALUMINO-SILICATE SEQUENTIALLY WITH A DILUTE NON-FLUORIDE ACID SOLUTION FOLLOWED BY TREATMENT WITH A HALOGEN SOLUTION CONTAINING FLUORIDE AND CHLORIDE IONS. THE FLUORIDE-CONTAINING ALUMINO-SILICATES ARE HIGHLY ACTIVE AND STABLE HYDROCONVERSION CATALYSTS ESPECIALLY WHEN COMPOSITED WITH A HYDROGENATIVE METAL COMPONENT.
Abstract:
A HYDROCARBON CONVERSION PROCESS IN WHICH A HYDROCARBON IS CONTACTED AT CONVERSION CONDITIONS WITH A CATALYST CONSISTING ESSENTIALLY OF (1) ALUMINA, (2) A METAL SELECTED FROM THE GROUP CONSISTING OF RUTHENIU, RHODIUM, PALLADIUM AND PLATINUM, AND (3) CHLORINE OR BROMINE WHEREIN AT LEAST A PORTION OF SAID CHLORINE OR BROMINE IS INTRODUCED INTO SAID CATALYST BY CONTACTING A COMPOSITE OF ALUMINA AND SAID METAL AT ELEVATED TEMPERATURE WITH A SELECTED ORGANIC COMPOUND IN THE PRESENCE OF CHLORINE OR BROMINE. THE CATALYST SO PREPARED IS USEFUL IN HYDROCARBON CONVERSION PROCESSES AS ISOMERIZATION, HYDROCRACKING, ALKYLATION, HYDROGENATION AND POLYMERIZATION.