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| Number | Title | Issue Date |
| 6583316 | Catalysts for production of unsaturated aldehyde and unsaturated carboxylic acid and a process for producing unsaturated aldehyde and unsaturated carboxylic acid using the catalysts Improved catalysts for use in vapor phase oxidation of at least one compound selected from the group consisting of propylene, isobutylene, t-butanol and methyl-t-butyl ether with molecular oxygen or a molecular oxygen-containing gas to produce the corresp... | 06/24/2003 |
| 6583330 | Catalysts containing heteropolyanions usable in processes for conversion of paraffins New catalysts that contain heteropolyanions of the 12-tungstophosphoric acid or the 12-tungstomolybdic acid, and, for some of these, at least one metal of group VIII, and that are deposited on substrates that develop a specific surface area and a high por... | 06/24/2003 |
| 6579825 | Catalyst composition There is provided a catalyst carrier comprising a refractory inorganic material having a sodium solubilization rate no greater than 5 ppmw/5 minutes. There is further a catalyst comprising a refractory inorganic material carrier having a sodium solubiliza... | 06/17/2003 |
| 6576804 | Method and catalyst for producing olefins, in particular propylenes, by dehydrogenation Olefinically unsaturated hydrocarbons are prepared from corresponding paraffinic hydrocarbons, in particular propylene is prepared from propane, by dehydrogenation over a catalyst comprising an oxide of a transition metal of group IV B of the Periodic Tab... | 06/10/2003 |
| 6576584 | Method for producing hydrotreating catalyst A method for producing a hydrotreating catalyst which relates to the production of a solid catalyst composed of a carrier impregnated with an active component, to give a catalyst for hydrotreating hydrocarbon oils, which contains a large quantity of a hyd... | 06/10/2003 |
| 6573213 | Metal catalysts Metal catalysts comprising hollow forms or spheres are made of metal alloy and optionally activated. The metal catalysts can be used for the hydrogenation, dehydrogenation, isomerization reductive alkylation, reductive amination, and/or hydration reaction... | 06/03/2003 |
| 6569803 | Catalyst for purifying exhaust gas A catalyst, for purifying an exhaust gas, contains at least one catalyst component from among Pt, Pd, Rh, Au, Ag and Ir, and a complex oxide of the perovskite type comprising at least two different metal elements. In the catalyst, the catalyst component i... | 05/27/2003 |
| 6569804 | Chromium-free Fe-based catalyst for CO high-temperature-shift reaction and its preparation A chromium-free Fe-based catalyst for CO HTS reaction, comprising about 65 to about 90% by weight of Ferriate oxides; about 1 to about 10% by weight of Al, Fe, Si-mixed oxides (Al:Fe:Si=6:2:1) or aluminum-silicon-sol (Al:Si=8:2); about 0.5 to about 2.0% b... | 05/27/2003 |
| 6562753 | Device for purifying exhaust gas, method for purifying exhaust gas, catalyst for purifying exhaust gas, and method for manufacturing exhaust gas purifying catalyst A catalyst for lowering NOx concentration in an exhaust gas is disposed in an exhaust gas passage of an engine. The catalyst composed of a catalyst layer formed on a substrate. A NOx absorber that absorbs NOx when an oxygen concentration in the exhaust ga... | 05/13/2003 |
| 6562749 | Process for the preparation of a catalyst or catalyst precursor A process for the preparation of a ceramic foam supporting one or more catalytically active components or precursors thereof, which component is active in a form other than an inorganic oxide, the process comprising impregnation of the foam with an impreg... | 05/13/2003 |
| 6562315 | Suppression of methanation activity by a water gas shift reaction catalyst The invention provides a process for carrying out the water gas shift reaction comprising employing a methane production suppressing water gas shift reaction catalyst, wherein the methane production suppressing water gas shift reaction catalyst comprises ... | 05/13/2003 |
| 6559191 | Carbon monoxide hydrogenation (JSS-0004) A method is disclosed for enhancing the activity of a particulate Dispersed Active Metal (DAM) catalyst during operation of a reactor wherein the hydrogenation of carbon monoxide to produce a mixture of hydrocarbons is being carried out comprising withdra... | 05/06/2003 |
| 6559093 | Process for catalytic ammonia production-preparation and recovery of ammonia synthesis catalyst A catalyst active in ammonia synthesis with improved activity and a process for the recovery of useful components from the catalyst.... | 05/06/2003 |
| 6558553 | Photocatalyst The present invention relates generally to a relatively stable magnetic photocatalyst comprising an insulated magnetite core coated with a layer of photoactive titanium dioxide. In one example the insulation layer is silicon dioxide which blocks direct el... | 05/06/2003 |
| 6551500 | Hydrocracking catalyst, producing method thereof, and hydrocracking method A hydrocracking catalyst has a carrier that has particles of a compound oxide and a binder present between these particles, and at least one metal component selected from Group 6, Group 9 or Group 10 of the Periodic Table supported on the carrier. The cat... | 04/22/2003 |
| 6548446 | Catalyst for selective oxidation of carbon monoxide A selective catalytic material is used in a method for selective oxidation of carbon monoxide in the presence of hydrocarbons and contains rhodium and a bismuth component either as a supported catalytic material dispersed on a refractory inorganic oxide s... | 04/15/2003 |
| 6548444 | Tin promoted iridium catalyst for carbonylation of lower alkyl alcohols A carbonylation catalyst useful for producing esters and carboxylic acids from reactants including lower alkyl alcohols, lower alkyl alcohol generating compounds, such as ether and ester derivatives of the alcohols, and mixtures thereof in a vapor phase c... | 04/15/2003 |
| 6548440 | Synthesis of attrition-resistant heterogeneous catalysts using templated mesoporous silica The present invention relates to catalysts in mesoporous structures. In a preferred embodiment, the invention comprises a method for encapsulating a dispersed insoluble compound in a mesoporous structure comprising combining a soluble oxide precursor, a s... | 04/15/2003 |
| 6541419 | Process for reduction of gaseous sulfur compounds A sulfur sorber for the reduction of gaseous sulfur compounds, e.g., H2 S, in a gas stream The sulfur sorber, e.g., zinc oxide, is present in the form of one or more layers on the surface of a monolith carrier, e.g., cordierite. The layers have... | 04/01/2003 |
| 6541417 | Catalyst based on a noble group VIII metal containing silicon and possibly boron, and its use in hydrotreating hydrocarbon-containing feeds The invention provides a catalyst including a support, at least one noble metal from group VIII of the periodic table, silicon as a dopant, optionally boron, optionally at least one group VIB element, optionally phosphorous and optionally at least one hal... | 04/01/2003 |
| 6541414 | Catalyst for preparing 1,3-alkanediol from epoxide derivative A process for preparing an 1,3-alkanediol through carbonylation of an epoxide derivative includes the steps of (a) reacting an epoxide derivative with alcohol and carbon monoxide in a solvent at a temperature from about 30 to about 150° C. and at a press... | 04/01/2003 |
| 6534440 | Process for the activation of a metallic palladium based catalyst useful for the direct oxidation of hydrogen to hydrogen peroxide This invention provides a process for the activation of a metallic palladium containing catalyst which is useful for the direct oxidation of hydrogen by oxygen to hydrogen peroxide, by treating the catalyst with an oxidising agent in order to at least par... | 03/18/2003 |
| 6534438 | Catalyst composition Composition and process for making same in which the composition includes support particles having at least one catalytically active metal or precursor thereof distributed therein in a layer below the surface of the particle. The layer is located between ... | 03/18/2003 |
| 6531517 | Process for increasing carbon monoxide hydrogenation activity of catalysts via low temperature oxidation with water, steam or mixture thereof A process for increasing the hydrogenation activity, particularly the carbon monoxide hydrogenation activity, of a catalyst or catalyst precursor comprised of a particulate solids support component and a catalytic metal, or metals component, preferably co... | 03/11/2003 |
| 6528453 | Process for making a catalyst composition A process for preparing a supported metal catalyst composition which comprises impregnating microspheroidal support particles with a solution of at least one catalytically active metal, or precursor, drying the impregnated support particles and then treat... | 03/04/2003 |
| 6528029 | Catalyst compositions employing sol gel particles and methods of using the same Composite of at least two metal oxides in the form of Primary Particles and a support having a particle size greater than the Primary Particles used in the formation of a catalyst composition for the treatment of a pollutant containing gas.... | 03/04/2003 |
| 6524540 | Materials and methods for water purification A catalyst for the purification, e.g., disinfection, of water is disclosed. The catalyst of the invention comprises a substrate, a first metal, and at least one additional metal. The metals are codeposited on the substrate to form a unified structure. Met... | 02/25/2003 |
| 6521566 | Mixed oxide solid solutions The present invention is a mixed oxide solid solution containing a tetravalent and a pentavalent cation that can be used as a support for a metal combustion catalyst. The invention is furthermore a combustion catalyst containing the mixed oxide solid solu... | 02/18/2003 |
| 6521565 | Cobalt catalyst compositions useful for conducting carbon monoxide hydrogenation reactions A catalyst precursor comprising a composite of a solids support, or powder component, and a compound or salt of a metal, or metals component, inclusive of cobalt, is upon reduction rendered catalytically active for conducting hydrogenation reactions, espe... | 02/18/2003 |
| 6518218 | Catalyst system for producing carbon fibrils A catalyst system and method for making carbon fibrils is provided which comprises a catalytic amount of an inorganic catalyst comprising nickel and one of the following substances selected from the group consisting of chromium; chromium and iron; chromiu... | 02/11/2003 |
| 6517784 | Exhaust gas purifying apparatus for an internal combustion engine Exhaust gas from internal combustion engines is treated with catalyst comprising an inorganic oxide supporter which supports at least one of noble metals selected from Rh, Pt, and Pd, alkali rare earth metals, rare earth metals, and magnesium in order to ... | 02/11/2003 |
| 6514903 | Process for preparing a catalyst An improved catalyst including a compound of the formula (I) Aa Mm Nn Xx Oo (I) wherein 0.25 | 02/04/2003 |
| 6514901 | Process for preparing a catalyst A process for preparing a catalyst is disclosed. The catalyst is useful for the gas phase oxidation of alkanes to unsaturated aldehydes or carboxylic acids.... | 02/04/2003 |
| 6514900 | 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... | 02/04/2003 |
| 6511642 | Porous material, catalyst, method of producing the porous material and method for purifying exhaust gas Disclosed are a porous material comprising particles without substantial fibrous structure and having pores, the pores having a mean pore diameter in a meso-pore region, sharp pore size distribution, and at least a part of the pores being connected three-... | 01/28/2003 |
| 6511938 | Alkylene oxide catalysts having enhanced activity and/or stability Catalysts for the production of alkylene oxide by the epoxidation of alkene with oxygen comprise a silver-containing support, and a sufficient amount of cobalt component to enhance at least one of activity and/or efficiency and/or stability as compared to... | 01/28/2003 |
| 6509292 | Process for selective hydrogenation of acetylene in an ethylene purification process A process for selective hydrogenation of acetylene during ethylene purification without in-situ prereduction utilizing a palladium/gold impregnated catalyst wherein the ratio of the gold to the palladium is from about 6:1 to about 50:1.... | 01/21/2003 |
| 6508367 | Method of manufacturing a filter A photocatalytic oxidation purification system includes an ultra violet light source and a filter that comprises a pleated wire mesh substrate with a nanophase metal oxide oxidation catalyst suspended on the substrate, wherein the catalyst is applied with... | 01/21/2003 |
| 6506705 | Composition based on cerium oxide or on cerium and zirconium oxides, in the extruded form, process for the preparation thereof and use thereof as catalyst The present invention relates to a composition based on cerium oxide or on cerium and zirconium oxides, in the extruded form, to a process for the preparation thereof and to the use thereof as catalyst. The process for the preparation of the composition o... | 01/14/2003 |
| 6506356 | Catalyst for oxidizing hydrogen sulfide gas and method for recovering elemental sulfur using the same A catalyst for recovering elemental sulfur by the selective oxidation of hydrogen sulfide is represented by the following chemical formula: Va Tib Xc Of wherein, a is such a mole number that vanadium amounts to 5-40% by w... | 01/14/2003 |
