Preparation of alumina-supported catalyst compositions and the products thereof

Claim 1

A SUPPORTED CATALYST CONSISTING ESSENTIALLY OF AT LEAST 0.01% BY WEIGHT OF A CATALYTICALLY ACTIVE METAL COMPONENT DEPOSITED ON A POROUS REFRACTORY BODY, SAID CATALYTICALLY ACTIVE METAL COMPONENT BEING SELECTED FROM THE GROUP CONSISTING OF (1) OXIDES AND MIXED OXIDES OF IRON, COBALT, NICKEL, VANADIUM, CHROMIUM, MNGANESE, COPPER, ZINC, MOLYBEDNUM, SILVER, TIN, BARIUM, CERIUM, TUNGSTEN, LEAD AND BISMUTH; (2) ELEMENTAL RUTHENIUM, PLATINUM, PALLADIUM, RHODIUM, OSMIUM, AND IRRIDIUM; AND (3) MIXTURES THEREOF, SAID POROUS REFRACTORY BODY COMPRISING A SKELETAL STRUCTURE OF DENSE, CRYSTALLINE CELL-DEFINING WALLS, SAID CELLS HAVING AN AVERAGE DIAMETER BETWEEN 0.5 AND 200 MILS, THE WALLS DEFINING SAID CELLS HAVING A THICKNESS OF BETWEEN 0.3 AND 200 MILS, THE WALL MATERIAL BEING SELECTED FROM THE GROUP CONSISTING OF ALPHA ALUMINA, COMPOUNDS AND SOLID SOLUTIONS OF ALUMINA AND AT LEAST ONE OTHER METAL OXIDE, AND SOLID SOLUTIONS OF AT LEAST ONE METAL OXIDE IN SAID COMPOUNDS OF LUMINA, PROVIDED THAT SAID WALL MATERIAL CONTAIN AT LEAST 30% BY WEIGHT AL2O3 AND AT LEAST 1% ALUMINUM IN A STATE OF OXIDATION BELOW A VALENCE OF 3.

Claim 3

A METHOD FOR MAKING SUPPORTED CATALYSTS WHICH COMPRISES FIRING A MOLDED BODY, AT A TEMPERATURE WITHIN THE RANGE OF 650* AND 1500*C. AND IN THE PRESENCE OF OXYGEN, SAID MOLDED BODY COMPRISING ALUMIUM PARTICLES HAVING ONE DIMENSION OF AT LEAST 7 MILS, A SECOND DIMENSION OF AT LEAST ABOUT 0.5 MIL AND A THIRD DIMENSION OF BETWEEN 0.5 ND 200 MILS, AND BETWEEN 0.02% AND 20% BY WEIGHT OF THE ALUMINUM OF A METAL OXIDE FLUXING AGENT SELECTED FROM THE GROUP CONSISTING OF THE OXIDES OF THE ALKILI METALS, THE LKALINE EARTH METALS, VANADIUM, CHROMIUM, MOLYBDENUM, TUNGSTEN, COPPER, SILVER, ZINC, ANTIMONY AND BISMUTH, PRECURSORS OF SAID OXIDES YIELDING THE INDICATED AMOUNT OF SAID OXIDE UNER THE FIRING CONDITIONS, AND HYDROXIDES OF THE ALKALI METALS UNTIL AT LEAST 10% OF THE ALUMIUM HAS BEEN OXIDIZED AND AT LEAST 1% IS PRESENT IN A STATE OF OXIDATION BELOW A VALENCE OF 3, AND DEPOSITING A CATALYTICALLY ACTIVE METAL COMPONENT SELECTED FROM THE GROUP CONSISTING OF (1) OXIDES AND MIXED OXIDES OF IRON, COBALT, NICKEL, VANDIUM, CHROMIUM, MAGNANESE, COPPER, ZINC, MOLYBDENUM, SILVER, TIN, BARIUM, CERIUM, TUNGSTEN, LEAD AND BISMUTH; (2) ELEMENTAL RUTHENIUM.

Claim 4

A METHOD FOR MAKING SUPPORTED CATALYSTS WHICH COMPRISES FIRING A MOLDED BODY, AT A TEMPERATURE WITHIN THE RANGE OF 650* AND 1500*C. AND IN THE PRESENCE OF OXYGEN, SAID MOLDED BODY COMPRISING ALUMIUM PARTICLES HAVING ONE DIMENSION OF AT LEAST 7 MILS, A SECOND DIMENSION OF AT LEAST ABOUT 0.5 MIL AND A THIRD DIMENSION OF BETWEEN 0.5 ND 200 MILS, AND BETWEEN 0.02% AND 20% BY WEIGHT OF THE ALUMINUM OF A METAL OXIDE FLUXING AGENT SELECTED FROM THE GROUP CONSISTING OF THE OXIDES OF THE ALKILI METALS, THE LKALINE EARTH METALS, VANADIUM, CHROMIUM, MOLYBDENUM, TUNGSTEN, COPPER, SILVER, ZINC, ANTIMONY AND BISMUTH, PRECURSORS OF SAID OXIDES YIELDING THE INDICATED AMOUNT OF SAID OXIDE UNER THE FIRING CONDITIONS, AND HYDROXIDES OF THE ALKALI METALS UNTIL AT LEAST 10% OF THE ALUMIUM HAS BEEN OXIDIZED AND AT LEAST 1% IS PRESENT IN A STATE OF OXIDATION BELOW A VALENCE OF 3, AND DEPOSITING A CATALYTICALLY ACTIVE METAL COMPONENT SELECTED FROM THE GROUP CONSISTING OF (1) OXIDES AND MIXED OXIDES OF IRON, COBALT, NICKEL, VANDIUM, CHROMIUM, MAGNANESE, COPPER, ZINC, MOLYBDENUM, SILVER, TIN, BARIUM, CERIUM, TUNGSTEN, LEAD AND BISMUTH; (2) ELEMENTAL RUTHENIUM.