Hydrocarbon conversion catalysts

Claim 1

THE METHOD OF PREPARING A PLATINUM ON ALUMINA CATALYST FOR THE CONVERSION AND TREATMENT OF HYDROCARBONS WHICH COMPRISES ADDING TO A SOLUTION OF MIXED ALUMINUM AMYLATES, IN A SOLVENT CONTAINING A MIXTURE OF AMYL ALCOHOLS, A MINOR AMOUNT OF A SOLUTION OF CHLOROPLATINIC ACID IN FROM ABOUT 2% TO 60% BY WEIGHT OF GLACIAL ACETIC ACID BASED ON THE ALUMINA EQUIVALENT PRESENT, EVAPORATING THE SOLVENT FROM THE CLEAR HOMOGENEOUS SOLUTION THUS FORMED WHILE SIMULTANEOUSLY HYDROLYZING THE ALUMINUM AMYLATE BY EXPOSURE TO AN ATMOSPHERE OF MOIST AIR, PRECIPITATING THEREBY A PURE HYDROUS PEPTIZED ALUMINA AND SIMULTANEOUSLY COPRECIPITATING THEREWITH THE PLATINUM COMPOUND PRESENT, FURTHER DRYING THE DEPOSIT THUS OBTAINED BY PLACING IT IN A HYDROGEN ATMOSPHERE AND STRIPPING AT ROOM TEMPERATURE IN A RAPID STREAM OF HYDROGEN TO REMOVE THE REMAINING SOLVENT AND UNCOMBINED WATER, SUBSEQUENTLY REDUCING SAID DEPOSIT TO FORM METALLIC PLATINUM BY HEATING GRADUALLY IN SAID HYDROGEN ATMOSPHERE TO A TEMPERATURE FROM ABOUT 900* TO 1000* F., AND RECOVERING A CATALYST COMPRISING FROM ABOUT 0.05 TO2% BY WEIGHT OF PLATINUM ON ALUMINA.

Claim 2

THE METHOD OF PREPARING A PLATINUM ON ALUMINA CATALYST FOR THE CONVERSION AND TREATMENT OF HYDROCARBONS WHICH COMPRISES ADDING TO A SOLUTION OF MIXED ALUMINUM AMYLATES, IN A SOLVENT CONTAINING A MIXTURE OF AMYL ALCOHOLS, A MINOR AMOUNT OF A SOLUTION OF CHLOROPLATINIC ACID IN FROM ABOUT 2% TO 60% BY WEIGHT OF GLACIAL ACETIC ACID BASED ON THE ALUMINA EQUIVALENT PRESENT, EVAPORATING THE SOLVENT FROM THE CLEAR HOMOGENEOUS SOLUTION THUS FORMED WHILE SIMULTANEOUSLY HYDROLYZING THE ALUMINUM AMYLATE BY EXPOSURE TO AN ATMOSPHERE OF MOIST AIR, PRECIPITATING THEREBY A PURE HYDROUS PEPTIZED ALUMINA AND SIMULTANEOUSLY COPRECIPITATING THEREWITH THE PLATINUM COMPOUND PRESENT, FURTHER DRYING THE DEPOSIT THUS OBTAINED BY PLACING IT IN A HYDROGEN ATMOSPHERE AND STRIPPING AT ROOM TEMPERATURE IN A RAPID STREAM OF HYDROGEN TO REMOVE THE REMAINING SOLVENT AND UNCOMBINED WATER, SUBSEQUENTLY REDUCING SAID DEPOSIT TO FORM METALLIC PLATINUM BY HEATING GRADUALLY IN SAID HYDROGEN ATMOSPHERE TO A TEMPERATURE FROM ABOUT 900* TO 1000* F., AND RECOVERING A CATALYST COMPRISING FROM ABOUT 0.05 TO2% BY WEIGHT OF PLATINUM ON ALUMINA.