Hydrocarbon conversion process and catalyst

Claim 1

A PROCESS FOR THE CATALYTIC UP-GRADING OF MINERAL OIL HYDROCARBONS WHICH COMPRISES SUBJECTING SAID HYDROCARBONS TO A TEMPERATURE BETWEEN ABOUT 500* F. AND 1500* F. IN THE PRESENCE OF HYDROGEN AND A CATALYST, WHEREIN SAID CATALYST CONSISTS ESSENTIALLY OF (1) A MAJOR PROPORTION OF COPRECIPITATED ALUMINA-SILICA GEL CARRIER CONTAINING BETWEEN ABOUT 1% AND 15% SIO2, (2) A MINOR PROPORTION GREATER THAN 0.05%* BY WEIGHT OF COMBINED FLUORINE, (3) ABOUT 2% AND 15% OF MOLYBDENUM OXIDES CALCULATED AS MOO3, AND (4) BETWEEN ABOUT 0.5% AND 12% OF AN OXIDE OF A METAL SELECTED FROM THE GROUP CONSISTING OF IRON, NICKEL AND COBALT, AND WHEREIN SAID CATALYST HAS BEEN PREPARED BY FIRST IMPREGNATING SAID CARRIER WITH AQUEOUS HYDROFLUORIC ACID, DRAINING AND DRYING THE ACID-IMPREGNATED CARRIER WITHOUT WASHING, CALCINING THE DRIED ACID-IMPREGNATED CARRIER AT A TEMPERATURE BETWEEN ABOUT 800* AND 1200* F., AND THEREAFTER IMPREGNATING THE CALCINED CARRIER WITH A WATER SOLUBLE MOLYBDENUM COMPOUND AND WITH A WATER SOLUBLE COMPOUND OF SAID METAL SELECTED FROM THE GROUP CONSISTING OF IRON, NICKEL AND COBALT, AND FINALLY CALCINING THE METAL-IMPREGNATED CATALYST TO ACTIVATE THE SAME, AND TO DECOMPOSE SAID METAL IMPREGNANTS TO THE CORRESPONDING OXIDES.

Claim 3

A METHOD FOR PREPARING A HYDROCARBON CONVERSION CATALYST WHICH COMPRISES FIRST IMPREGNATING A CARRIER CONSISTING ESSENTIALLY OF ACTIVATED ALUMINA WITH A WATER SOLUBLE MOLYBDENUM COMPOUND AND WITH A WATER SOLUBLE COMPOUND OF A METAL SELECTED FROM THE GROUP CONSISTING OF IRON, NICKEL AND COBALT, DRYING AND CALCINING THE METAL IMPREGNATED CARRIER TO DECOMPOSE SAID METAL IMPREGNANTS TO THE CORRESPONDING OXIDES, THEREAFTER IMPREGNATTING THE CALCINED METAL-IMPREGNATED CARRIER WITH A SOLUTION OF AN INORGANIC HALOGEN-CONTAINING ACID, SAID HALOGEN BEING SELECTED FROM THE GROUP CONSISTING OF FLUORINE AND CHLORINE, DRAINING AND DRYING THE ACID-IMPREGNATED CARRIER WITHOUT WASHING, AND FINALLY CALCINING THE DRIED CARRIER TO ACTIVATE THE SAME.

Claim 4

A METHOD FOR PREPARING A HYDROCARBON CONVERSION CATALYST WHICH COMPRISES FIRST IMPREGNATING A CARRIER CONSISTING ESSENTIALLY OF ACTIVATED ALUMINA WITH A WATER SOLUBLE MOLYBDENUM COMPOUND AND WITH A WATER SOLUBLE COMPOUND OF A METAL SELECTED FROM THE GROUP CONSISTING OF IRON, NICKEL AND COBALT, DRYING AND CALCINING THE METAL IMPREGNATED CARRIER TO DECOMPOSE SAID METAL IMPREGNANTS TO THE CORRESPONDING OXIDES, THEREAFTER IMPREGNATTING THE CALCINED METAL-IMPREGNATED CARRIER WITH A SOLUTION OF AN INORGANIC HALOGEN-CONTAINING ACID, SAID HALOGEN BEING SELECTED FROM THE GROUP CONSISTING OF FLUORINE AND CHLORINE, DRAINING AND DRYING THE ACID-IMPREGNATED CARRIER WITHOUT WASHING, AND FINALLY CALCINING THE DRIED CARRIER TO ACTIVATE THE SAME.