Preparation of porous kaolin catalysts
First Claim
1. A PROCESS OF PREPARAING GRANULAR PARTICLES OF STABLE CARALYST HAVING A CAT-A ACTIVITY GREATER THAN 20 FROM KAOLIN-TYPE WHICH COMPRISES INTIMATELY MIXING SAID KAOLIN-TYPE CLAY IN FINELY DIVIDED FORM WITH FORM ABOUT 5% TO ABOUT 12% BY WEIGHT, CORRESPONDING TO AT LEAST 0.15 AND NOT MORE THAN 1.0 VOLUME RATIO, OF WOOD FLOUR FORMING THE RESULTING MIXTURE INTO GRANULAR PARTCLES, HEAT ING SAID GRANULAR PARTICLES IN AN OXIDIZING ATMOSPHERE, WHEREBY, SAID WOOD FLOUR IS BURNED OUT AT A TEMPERATURE OF ABOUT 1500*F., WELL BELOW THE FUSION TEMPERATURE OF SAID CLAY, AND RECOVERING SAID HEATED GRANULAR PARTICLES AS HARD, POROUS ACTIVE AND STABLE CATALYST PARTICLES CAPABLE OF SELECTIVELY PROMOTING FORMATION OF GASOLINE DURING THE CRACKING OF HIGHER BOILING HYDROCARBONS.
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1 Claim
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1. A PROCESS OF PREPARAING GRANULAR PARTICLES OF STABLE CARALYST HAVING A CAT-A ACTIVITY GREATER THAN 20 FROM KAOLIN-TYPE WHICH COMPRISES INTIMATELY MIXING SAID KAOLIN-TYPE CLAY IN FINELY DIVIDED FORM WITH FORM ABOUT 5% TO ABOUT 12% BY WEIGHT, CORRESPONDING TO AT LEAST 0.15 AND NOT MORE THAN 1.0 VOLUME RATIO, OF WOOD FLOUR FORMING THE RESULTING MIXTURE INTO GRANULAR PARTCLES, HEAT ING SAID GRANULAR PARTICLES IN AN OXIDIZING ATMOSPHERE, WHEREBY, SAID WOOD FLOUR IS BURNED OUT AT A TEMPERATURE OF ABOUT 1500*F., WELL BELOW THE FUSION TEMPERATURE OF SAID CLAY, AND RECOVERING SAID HEATED GRANULAR PARTICLES AS HARD, POROUS ACTIVE AND STABLE CATALYST PARTICLES CAPABLE OF SELECTIVELY PROMOTING FORMATION OF GASOLINE DURING THE CRACKING OF HIGHER BOILING HYDROCARBONS.
Specification
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Current AssigneeThomas H. Milliken Jr, Walter L. Weidman
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Original AssigneeThomas H. Milliken Jr, Walter L. Weidman
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InventorsMilliken, Thomas H. Jr., Weidman, Walter L.
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Application NumberUS03/444,636Time in Patent Office1,435 DaysField of SearchUS Class Current502/80CPC Class CodesB01J 21/16 Clays or other mineral sili...
