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| Number | Title | Issue Date |
| 6228800 | Noble metal support A noble metal-supported article which comprises a carrier and a palladium-containing metal component supported on the carrier, which article has (A) a layer in which substantially no palladium is supported in the interior of the carrier and (B) a layer in... | 05/08/2001 |
| 6225255 | Additive catalyst for the cracking of heavy oil An additive catalyst for the cracking of heavy oil, characterized in that the additive catalyst includes: (i) a mixed metal oxide composed of an acidic metal oxide and a basic metal oxide, in which the proportion of the basic metal oxide is from 5 to 50 m... | 05/01/2001 |
| 6221805 | Catalyst support and catalyst and process for producing the same A catalyst support, a catalyst using the catalyst support and a process for producing the same are disclosed. For instance, the catalyst support includes a composite oxide powder produced by spraying and burning a W/O type emulsion, the W/O type emulsion ... | 04/24/2001 |
| 6221804 | Catalyst for purifying exhaust gas and manufacturing method thereof An exhaust gas purifying catalyst is provided by coating a slurry of a mixture of a powdered first catalyst provided by carrying Pt on a mixture of alumina and ceria and a powdered second catalyst provided by carrying Rh on manganese oxide on a support me... | 04/24/2001 |
| 6218326 | Supported molten-metal catalysts An entirely new class of catalysts called supported molten-metal catalysts, SMMC, which can replace some of the existing precious metal catalysts used in the production of fuels, commodity chemicals, and fine chemicals, as well as in combating pollution. ... | 04/17/2001 |
| 6214757 | Solid state oxygen anion and electron mediating membrane and catalytic membrane reactors containing them A process for production of synthesis gas employing a catalytic membrane reactor wherein the membrane comprises a mixed metal oxide material.... | 04/10/2001 |
| 6214306 | Composition based on zirconium oxide and cerium oxide, preparation method therefor and use thereof The invention relates to a composition based on zirconium oxide and comprising cerium oxide which has a specific surface of at least 30 m2 /g after calcination for 6 hours at 900° C. and which is provided in the form of a pure solid solution o... | 04/10/2001 |
| 6204219 | Thermally stable support material and method for making the same A process for the preparation of mixed oxide compositions of cerium oxide and at least one non-noble metal oxide is disclosed. The process involves contacting a salt solution containing a cerium (IV) salt with hydrogen peroxide and thereafter, treating th... | 03/20/2001 |
| 6201123 | Catalyst composition, catalyst solution and process for preparing optically active epoxide A catalyst composition for organic a symmetric synthesis is provided, which comprises: (A) a lanthanoid element ion; (B) a binaphthol, and (C) a nitrogen and/or phosphorus compound such as lutidine-N-oxide, 1,3-dimethyl-2-imidazolldinone, hexamethyl-phosphortr... | 03/13/2001 |
| 6197991 | Method and catalyst system for producing A method and catalyst system for economically producing aromatic carbonates from aromatic hydroxy compounds. In one embodiment, the present invention provides a method of carbonylating aromatic hydroxy compounds by contacting at least one aromatic hydroxy... | 03/06/2001 |
| 6187824 | Zinc oxide sol and method of making Disclosed is a zinc-oxide containing sol comprising a core of cerium dioxide sol the surface of which particles is coated with zinc oxide; and the method of making the sol. The sol has a mean particle size of less than 50 nm, is characterized as being cle... | 02/13/2001 |
| 6184174 | Catalysts for dehydrogenating ethylbenzene to styrene Catalysts for dehydrogenating ethylbenzene to styrene which comprise iron oxide, oxides of alkaline and alkaline-earth metals, oxides of the lanthanide series, oxides of metals of the sixth group, prepared from a paste of iron oxide impregnated with an aq... | 02/06/2001 |
| 6180558 | Material for exhaust gas purifying catalyst, exhaust gas purifying catalyst made of the material and method for producing the exhaust gas purifying catalyst A catalytic base material for an exhaust gas purifying catalyst is produced by impregnating ceria powders with a barium contained solution and heating the ceria particles at approximately 400 to 1100° C. to create and accumulate barium oxides fixed to su... | 01/30/2001 |
| 6180075 | Exhaust gas catalyst A single-layered three-way catalytic converter containing palladium as the only catalytically active noble metal, with high activity and heat resistance. The catalyst contains, in addition to finely divided, stabilized aluminum oxide, at least one finely ... | 01/30/2001 |
| 6180812 | Catalyst composition and method for producing diaryl carbonates using amide as promoter Hydroxyaromatic compounds such as phenol are carbonylated with oxygen and carbon monoxide in the presence of a catalyst system comprising a Group VIII metal having an atomic number of at least 44, preferably palladium; an alkali metal or alkaline earth me... | 01/30/2001 |
| 6177382 | Preparation of spinel extrudates In a process for preparing spinel extrudates by extruding molding compositions comprising spinel powder with or without extrusion assistants, stabilizers, shrinkage reducers, pore-formers or mixtures thereof subsequent drying and calcination of the extrud... | 01/23/2001 |
| 6177381 | Layered catalyst composition and processes for preparing and using the composition This invention relates to a layered catalyst composition, a process for preparing the composition and processes for using the composition. The catalyst composition comprises an inner core such as alpha-alumina, and an outer layer bonded to the inner core ... | 01/23/2001 |
| 6171999 | Method of manufacturing catalyst In the manufacturing process of the exhaust gas purifying catalyst (3), rhodium is supported by the base material using the rhodium carbonyl cluster solution in which rhodium carbonyl cluster is dissolved into methanol in the step of forming the upper cat... | 01/09/2001 |
| 6171998 | Method of preparation of a catalyst for acrolein oxidation Disclosed is a method of producing a carrier catalyst for a use in acrolein oxidation reaction. Metallic salt components of the catalyst including molybdate, vanadate and tungstate are dissolved in water. An additional metallic salt component of the catal... | 01/09/2001 |
| 6171572 | Method for preparing a zirconium-cerium composite oxide A zirconium--cerium composite oxide having excellent heat resistance and being capable of maintaining its large specific surface area even when used under high-temperature conditions, which composite oxide contains zirconium and cerium at a weight ratio o... | 01/09/2001 |
| 6169214 | Catalyst consisting of a hollow cylindrical carrier having a catalytically active oxide material applied to the outer surface of the carrier, and process for using said catalyst A coated catalyst which consists of a hollow cylindrical carrier and a catalytically active oxide material applied to the outer surface of the carrier, the applied catalytically active oxide material being applied in a coat thickness of from 10 to 1000 μ... | 01/02/2001 |
| 6166280 | Catalyst for the dehydrogenation of ethylbenzene to styrene Catalysts in the form of cylindrical hollow granules, suitable for the dehydrogenation of ethylbenzene to styrene, and comprising, as active component, ferric oxide and promoters chosen among oxides of alkaline or alkaline-earth metals, oxides of elements... | 12/26/2000 |
| 6165935 | Palladium catalyst washcoat supports for improved methane oxidation in natural gas automotive emission catalysts The invention provides a catalyst which can convert methane, carbon monoxide, and nitrogen oxides in lean, stoichiometric, and rich air/fuel environments. Support (A) of the catalyst comprises an alumina support impregnated with Pd providing lean methane ... | 12/26/2000 |
| 6165933 | Reduced NOx combustion promoter for use in FCC processes Compositions comprising a component containing (i) an acidic oxide support, (ii) an alkali metal and/or alkaline earth metal or mixtures thereof, (iii) a transition metal oxide having oxygen storage capability, and (iv) palladium promote CO combustion in ... | 12/26/2000 |
| 6162757 | Acid catalyst composition A novel synthesis composition of a solid acid containing zirconium, in addition to a rare earth element, such as cerium, has the potential for catalytic conversions of hydrocarbons, especially for isomerization of paraffins, ring opening of cyclics, hydro... | 12/19/2000 |
| 6160155 | Method and catalyst system for producing aromatic carbonates A method and catalyst system for economically producing aromatic carbonates from aromatic hydroxy compounds. In one embodiment, the present invention provides a method of carbonylating aromatic hydroxy compounds by contacting at least one aromatic hydroxy... | 12/12/2000 |
| 6159897 | Catalyst for purifying exhaust gases A catalyst for purifying exhaust gases includes a support including at le one composite selected from the group consisting of TiO2 --Al2 O3, ZrO2 --Al2 O3 and SiO2 --Al2 ... | 12/12/2000 |
| 6156696 | Hydrotalcite contact materials Hydrotalcite-like contact materials are stable in the crystalline oxide structure and essentially reversible in anion exchange. Large crystalline sheet materials having increased sorption of SOX are provided by incorporation of certain organic ... | 12/05/2000 |
| 6152975 | Method for aqueous phase reactions A method for converting liquid organic material in a mixture into a product utilizing a catalyst in the form of a plurality of porous particles wherein each particle is a support having nickel metal catalytic phase or reduced nickel deposited thereon in a... | 11/28/2000 |
| 6150299 | Cerium- and zirconium-based mixed oxide, method of producing same and catalyst material for exhaust gas purification Mixed oxides excellent in thermal stability of specific surface area and in oxidation-reduction performance are provided on an industrial scale. Catalyst materials useful in exhaust gas purification are also provided. The invention is concerned with mixed... | 11/21/2000 |
| 6150290 | Ceramic material for use in the separation of oxygen from gas mixture A perovskite ceramic material having the general formula: Ax A'x' A"x" By B'y' B"y" O3-δ, wherein A, A' and A" each is one or more metals selected from the group of lanthanide metals; B, ... | 11/21/2000 |
| 6150288 | Composite oxide, composite oxide carrier and catalyst The composite oxide and the composite oxide carrier are manufactured by the precursor forming step and firing step. The precursor forming step includes high speed mixing means. The composite oxide catalyst is obtained by preparing a composite of catalytic... | 11/21/2000 |
| 6146602 | Mesoporous oxide molecular sieves for absorbing nitrogen oxides in oxidizing engine exhaust gas This invention is a catalyst comprising a mesoporous aluminum oxide material including precious metal. The material is made by sol-gel techniques using a neutral surfactant with alkoxides, water and alcohol to form the aluminum oxide material having an in... | 11/14/2000 |
| 6146445 | Stabilized perovskite for ceramic membranes A stable substantially cubic perovskite crystalline structure of at least one strontium-doped lanthanum cobalt oxide (LSC) having a stabilizing amount of at least one cerium gadolinium oxide (CGO) therein.... | 11/14/2000 |
| 6143691 | Purifying catalyst for exhaust gas from internal combustion engine A purifying catalyst for the exhaust gas from the internal combustion engine of an automobile, for example, is disclosed which excels in the purifying ability in quick response to the atmosphere of the exhaust gas largely varying with changes in the opera... | 11/07/2000 |
| 6143167 | NOx reduction compositions for use in FCC processes Compositions comprising a component containing (i) an acidic oxide support, (ii) an alkali metal and/or alkaline earth metal or mixtures thereof, (iii) a transition metal oxide having oxygen storage capability, and (iv) a transition metal selected from Gr... | 11/07/2000 |
| 6139814 | Thermally stable, high-surface-area metal oxides made by organic templating The invention is a method for producing a metal oxide product by steps including absorbing a liquid solution of metal oxide precursors onto crystalline or microcrystalline, porous structured organic material capable of being combusted at elevated temperat... | 10/31/2000 |
| 6136998 | Retention of activity of molybdenum-containing metallic oxide catalyst In the gas phase oxidation of an organic compound, using a metallic oxide fluidized-bed catalyst that contains molybdenum in an amount of 10% by weight or more, bismuth, and at least an element selected from the group consisting of iron and cerium, when t... | 10/24/2000 |
| 6136048 | Organic sol comprising at least one oxygenated rare-earth compound, synthesis method therefor, and use of said sol for catalysis A method for processing soot containing one or more rare earths, wherein said soot is contacted with an oxygen-containing gas, is disclosed. The method comprises (a) preparing an aqueous phase comprising a dispersion of at least one oxygenated metal compo... | 10/24/2000 |
| 6133194 | Cerium oxides, zirconium oxides, Ce/Zr mixed oxides and Ce/Zr solid solutions having improved thermal stability and oxygen storage capacity The production of cerium oxides, zirconium oxides, (Ce,Zr)O2 mixed oxides and (Ce,Zr)O2 solid solutions having improved particle size distribution, surface area, oxygen storage capacity and pore volume by the addition of an additive,... | 10/17/2000 |
