Method of preparing a hydrogenation-dehydrogenation catalyst

Claim 1

THE METHOD OF PREPARING A NON-ACIDIC SINGLE FUNCTION HYDROGENATING CATALYST COMPRISING THE STEPS OF PREPARING SORPTIVE HIGH AREA ALUMINA PARTICLES HAVING MINIMUM DIMENSIONS OF FROM 2 TO 13 MM; IMPREGNATING SUCH SORPTIVE ALUMINA PARTICLES WITH AN AQUEOUS SOLUTION OF CHLOROPLANTINE ACID TO DEPOSIT COMPOUNDS CORRESPONDING TO FROM 0.2 TO 1.9% PLATINUM; TEATING THE IMPREGNATED PARTICLES WITH HYDROGEN TO FORM PLATINUM,THE PARTICLES THUS CONTAINING A WEIGHT CONCENTRATION OF CHLORIDE OF ABOUT THE SAME MAGNITUDE AS THE WEIGHT CONCENTRATION OF PLATINUM; AND THEREAFER TREATING THE PARTICLES WITH AN OXYGEN-FREE GASEOUS MIXTURE COMPRISING ABOUT 25% TO 75%BY VOLUME OF STEAM AND ABOUT 10% TO 75% BY VOLUME HYDROGEN AND THE BALANCE CONSISTING OF UP TO 65% BY VOLUME OF STEAM FOR A PERIOD FROM ABOUT 1 TO ABOUT 36 HOUR AT A TEMPERATURE WITHIN THE RAGE OF FROM 700* F.TO 1000* F. TO REDUES THE CHOLORIDE CONTENT OF THE PARTICLES FROM ABOVE 0.1% TO SIGNIFICANTLY BELOW 0.1%, WHEREBY THERE ARE FROMED NON-ACIDC, SINGLE FUNCTION HYDROGENATION CATALYST PARTICLES CAPABLE OF CONVERTING AT LEAST 60% OF CYCLOHEXANE TO BENZENE AT 650* F. AT A LIQUID SPACE RATE OF 6, AT ATMOSPHERIC PRESSURE AND AT A HYDROGEN TO CYCOHEXANE RATIO OF 4.

Claim 2

THE METHOD OF PREPARING A NON-ACIDIC SINGLE FUNCTION HYDROGENATING CATALYST COMPRISING THE STEPS OF PREPARING SORPTIVE HIGH AREA ALUMINA PARTICLES HAVING MINIMUM DIMENSIONS OF FROM 2 TO 13 MM; IMPREGNATING SUCH SORPTIVE ALUMINA PARTICLES WITH AN AQUEOUS SOLUTION OF CHLOROPLANTINE ACID TO DEPOSIT COMPOUNDS CORRESPONDING TO FROM 0.2 TO 1.9% PLATINUM; TEATING THE IMPREGNATED PARTICLES WITH HYDROGEN TO FORM PLATINUM,THE PARTICLES THUS CONTAINING A WEIGHT CONCENTRATION OF CHLORIDE OF ABOUT THE SAME MAGNITUDE AS THE WEIGHT CONCENTRATION OF PLATINUM; AND THEREAFER TREATING THE PARTICLES WITH AN OXYGEN-FREE GASEOUS MIXTURE COMPRISING ABOUT 25% TO 75%BY VOLUME OF STEAM AND ABOUT 10% TO 75% BY VOLUME HYDROGEN AND THE BALANCE CONSISTING OF UP TO 65% BY VOLUME OF STEAM FOR A PERIOD FROM ABOUT 1 TO ABOUT 36 HOUR AT A TEMPERATURE WITHIN THE RAGE OF FROM 700* F.TO 1000* F. TO REDUES THE CHOLORIDE CONTENT OF THE PARTICLES FROM ABOVE 0.1% TO SIGNIFICANTLY BELOW 0.1%, WHEREBY THERE ARE FROMED NON-ACIDC, SINGLE FUNCTION HYDROGENATION CATALYST PARTICLES CAPABLE OF CONVERTING AT LEAST 60% OF CYCLOHEXANE TO BENZENE AT 650* F. AT A LIQUID SPACE RATE OF 6, AT ATMOSPHERIC PRESSURE AND AT A HYDROGEN TO CYCOHEXANE RATIO OF 4.