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| Number | Title | Issue Date |
| 6790803 | Catalytic system for hydroconversion of naphtha A hydroconversion catalyst for hydrodesulfurizing feedstock while preserving octane number of the feedstock includes a support having a mixture of zeolite and alumina, the zeolite having an Si/Al ratio of between about 1 and about 20, and an active phase on the supp... | 09/14/2004 |
| 6790808 | Exhaust gas purifying catalyst In an exhaust gas purifying catalyst, an acid material with a high affinity with respect to an absorbing agent is dispersed and mixed in a catalyst layer, to which the absorbing agent is added, or a layer of the acid material is formed inside the catalyst layer in o... | 09/14/2004 |
| 6787023 | Metal-containing macrostructures of porous inorganic oxide, preparation thereof, and use There is provided a catalyst containing porous macrostructures comprised of: (a) a three-dimensional network of particles of porous inorganic material (e.g., zeolites); and, (b) at least one metal (e.g., a catalytically active metal). The particles of the at least o... | 09/07/2004 |
| 6787501 | Molecular sieve catalyst composition, its making and use in conversion processes The invention relates to a molecular sieve catalyst composition, to a method of making or forming the molecular sieve catalyst composition, and to a conversion process using the catalyst composition. In particular, the invention is directed to making a formulated mo... | 09/07/2004 |
| 6780806 | Lithium-based zeolites containing silver and copper and use thereof for selective absorption The invention provides new methods for separating nitrogen from a mixture. The invention provides adsorbents specifically for accomplishing nitrogen separation. The adsorbents and separation methods are particularly useful for the selective adsorption of nitrogen fr... | 08/24/2004 |
| 6777364 | Method of the preparation of macroporous foam comprising zeolite or zeotype material The present invention provides a macroporous foam comprising microporous zeolite or zeotype material and preparation thereof, which comprises dipping a polymeric template capable of releasing an amine which has a sponge or macroporous structure and can be selected f... | 08/17/2004 |
| 6776899 | Cracking catalyst composition The present invention relates to a cracking catalyst composition comprising a physical mixture of 10-90 weight % of a cracking catalyst A and 90-10 weight % of a cracking catalyst B, whereby catalyst A is a zeolite-containing cracking catalyst, and catalyst B is a c... | 08/17/2004 |
| 6773490 | Sulfur trioxide delivery system A process for reversible sorption of sulfur trioxide onto a sorbent comprising a) contacting from about 15% to 100% sulfur trioxide with the sorbent under anhydrous conditions at a temperature of from about 35° C. to about 150° C. thereby sorbing the sulfur trioxi... | 08/10/2004 |
| 6767855 | Catalyst for purifying exhaust gas A catalyst for purifying exhaust gases, which enables the HC-purification performance to be further improved by suitably arranging an HC-adsorbent. The catalyst includes a coating layer which is composed of alumina and zeolite, and carries a noble metal. The weight ... | 07/27/2004 |
| 6767384 | Isomorphously substituted molecular sieve membranes Zeolite membranes that can be used to continuously separate components of mixtures are disclosed. The zeolite membranes are prepared by isomorphous substitution, which allows systematic modification of the zeolite surface and pore structure. Through proper selection... | 07/27/2004 |
| 6764601 | Method for granulating powders The invention relates to a process of coating inorganic particles with organic compositions, and agglomerating, compacting and heating of the coated particles into granules. Coating and compacting the agglomeration may be conducted continuously, and may be used to f... | 07/20/2004 |
| 6759358 | Method for washcoating a catalytic material onto a monolithic structure A method of producing a washcoated monolith catalyst utilizing a dual sol binder system, wherein the binder system is a blend of an alumina sol and a silica sol and wherein the ratio of the alumina to the silica in the dual sol binder system is from about 6:1 to abo... | 07/06/2004 |
| 6756337 | Purification catalyst for exhaust gas A purification catalyst for exhaust gas has high purification performance for the exhaust gas even under a high oxygen concentration atmosphere. The purification catalyst for exhaust gas contains cerium oxide, zeolite carrying Pt, and tin or a tin oxide. ... | 06/29/2004 |
| 6756336 | Catalyst for purifying exhaust gases A catalyst for purifying exhaust gases exhibits not only effective purifying characteristics even in a low temperature range such as immediately after an engine starts but also high exhaust gas purifying ability. In the catalyst for purifying exhaust gases of a firs... | 06/29/2004 |
| 6750168 | High-temperature aging tolerance catalyzed adsorber system for treating internal combustion engine exhaust gas A catalyzed adsorber that is effective and durable in treating exhaust gas from internal combustion engines, and in particular, for adsorbing hydrocarbons contained in engine exhaust gas during cold start, releasing these hydrocarbons when the engine exhaust gas has... | 06/15/2004 |
| 6740764 | Oxide and method for production thereof Oxide comprising at least the elements Si and Ti, at least noncrystalline silicon dioxide and at least one crystalline silicate phase which has at least one zeolite structure, with noncrystalline silicon dioxide being applied to at least one crystalline silicate pha... | 05/25/2004 |
| 6740616 | Single-stage process for preparing glycol monoethers from olefins A process for preparing glycol monoethers from olefins comprises reacting the olefins with an epoxidizing reagent in the simultaneous presence of hydroxyl-containing organic compounds over a mixture of epoxidation catalysts and alkoxylation catalysts. ... | 05/25/2004 |
| 6734323 | Process for the preparation of zeolitic catalysts The present invention relates to a process for the preparation of zeolitic catalysts comprising zeolite and oligomeric silica, which can be used in industrial reactors. The process consists in directly mixing the suspension, resulting from the synthesis of the zeoli... | 05/11/2004 |
| 6734129 | Zeolite membrane composites (LAW730) The invention is related to a zeolite membrane composite composition comprising a first zeolite or zeolite-like layer, a second independently selected catalytic, permselective, or combined catalytic-permselective layer, and a porous support, the porous support havin... | 05/11/2004 |
| 6730625 | Hydroalkylation of aromatic hydrocarbons There is described a process and a catalyst for the hydroalkylation of an aromatic hydrocarbon, particularly benzene, wherein the catalyst comprises a first metal having hydrogenation activity and a crystalline inorganic oxide material having a X-ray diffraction pat... | 05/04/2004 |
| 6727201 | Slurry for carrying zeolite and method for manufacturing zeolite-carrying adsorption element The slurry for carrying zeolite of the present invention is slurry for attaching zeolite to a carrier and comprises zeolite and an organic emulsion binder dispersed in water. This slurry for carrying zeolite has viscosity not excessively high in spite of a large con... | 04/27/2004 |
| 6716783 | Catalysts for lean burn engine exhaust abatement The present invention provides a process for catalytically reducing nitrogen oxides in an exhaust gas stream containing nitrogen oxides and a reductant material by contacting the gas stream under conditions effective to catalytically reduce the nitrogen oxides with ... | 04/06/2004 |
| 6716784 | Catalytic cracking materials based on ITQ-7 zeolites and their use in hydrocarbons cracking processes Catalytic compositions are described for hydrocarbons cracking containing at least two zeolitic components of which at least one zeolitic component containing aluminium in its structure is selected from among ITQ-7 zeolites, intergrowths of ITQ-7 zeolites, ITQ-7 zeo... | 04/06/2004 |
| 6716338 | FCC catalysts for feeds containing nickel and vanadium A fluid catalytic cracking catalyst made from microspheres that initially contain kaolin, a dispersible boehmite alumina and a sodium silicate or silica sol binder. The kaolin portion contains hydrous kaolin and optionally spinel, or mullite, or both spinel and mull... | 04/06/2004 |
| 6712953 | Catalyst that contains a zeolite that is high in an element of group VIB and/or VIII and its use in hydrorefining and hydrocracking of hydrocarbon fractions The invention relates to a catalyst that contains at least one matrix, at least one zeolite and at least one hydro-dehydrogenating element that is located at the matrix (deposited on the catalyst or contained in the matrix), in which the zeolite contains in its poro... | 03/30/2004 |
| 6710008 | Method of making molecular sieve catalyst Disclosed is a method for making molecular sieve catalyst particles. Dried molecular sieve catalyst particles are used to make the catalyst. The dried molecular sieve catalyst particles are put into an aqueous solution and stirred to make a slurry. The slurry is dri... | 03/23/2004 |
| 6699811 | Tailored zeolite bound zeolite catalyst and its use for hydrocarbon conversion There is provided a zeolite bound zeolite catalyst which does not contain significant amount of non-zeolitic binder and can be tailored to optimize its performance and a process for converting hydrocarbons utilizing the zeolite bound zeolite catalyst. The... | 03/02/2004 |
| 6699812 | Epoxidation catalyst, its use and epoxidation process in the presence of this catalyst Epoxidation catalyst based on titanium zeolite in the form of extruded granules. Use of this catalyst in the synthesis of epoxides, preferably 1,2-epoxy-3-chloropropane or 1,2-epoxypropane, by reacting an olefinic compound, preferably allyl chloride or pr... | 03/02/2004 |
| 6696378 | Fluid catalytic cracking catalyst manufacturing process An in situ process for making improved zeolitic fluid cracking catalysts by spray drying a mixture of (i) hydrous kaolin and/or metakaolin, and (ii) calcined aluminum source, said calcined aluminum source being derived from a pulverized, ultrafine kaolin,... | 02/24/2004 |
| 6693055 | Zeolite-substrate composite comprising a patterned zeolite layer on a substrate and preparation thereof The present invention relates to a method for the preparation of a zeolite-substrate composite comprising a patterned zeolite monolayer or multilayer on a substrate, which comprises forming a pattern of a linking compound on the substrate by a selective i... | 02/17/2004 |
| 6692640 | Mordenite zeolite membrane and method for producing the same A mordenite (MOR) zeolite membrane is formed on a porous substrate and has crystals that are substantially oriented in a specific crystalline direction. A method for producing the mordenite (MOR) zeolite membrane includes the steps of: immersing a porous ... | 02/17/2004 |
| 6689195 | Crystalline molecular sieve layers and processes for their manufacture A process is described for the manufacture of crystalline molecular sieve layers with good para-xylene over meta-xylene selectivity's good para-xylene permeances and selectivities. The process requires impregnation of the support prior to hydrothermal syn... | 02/10/2004 |
| 6689708 | Preparation procedure for a zeolite type monometallic catalyst to obtain high octane gasolines through naphtha reforming process A process for preparing a reforming catalyst comprises incorporating a group IA alkali metal from an aqueous alkaline solution into a zeolitic material by means of ion exchange to form an alkali metal-modified zeolitic support material, which is dried, ca... | 02/10/2004 |
| 6689709 | Hydrothermally stable metal promoted zeolite beta for NOx reduction The present invention is directed to a metal-promoted zeolite beta catalyst useful in the selective catalytic reduction of nitrogen oxides with ammonia in which the zeolite beta is pre-treated so as to provide the zeolite with improved hydrothermal stabil... | 02/10/2004 |
| 6685900 | Catalyst for purifying the exhaust gases of diesel engines, and process for the preparation thereof A catalyst for purifying the exhaust gases of diesel engines, which catalyst contains at least one zeolite and, additionally, at least one of the support oxides aluminum oxide, silicon dioxide, titanium dioxide and aluminum silicate and at least one of th... | 02/03/2004 |
| 6682650 | Zeolite catalyst carrier and hydrogenation catalyst using same A catalyst support including a zeolite having an Al/Si atomic ratio of 0.01-0.1 and mesopores having a pore diameter in the range of 5-30 nm, and ultrafine particles composited to inside walls of the mesopores. The superfine particles are those of an oxid... | 01/27/2004 |
| 6680271 | Solid zeolite granulates having improved abrasion resistance, and methods of making them Zeolite granulates having improved abrasion resistance, obtained by spraying the zeolite granulates with an aqueous silica sol solution and then optionally drying and calcining them.... | 01/20/2004 |
| 6673235 | FCC catalysts for feeds containing nickel and vanadium A fluid catalytic cracking catalyst made from microspheres that initially contain kaolin, a dispersible boehmite alumina and a sodium silicate or silica sol binder. The kaolin portion contains hydrous kaolin and a particular kaolin which has been calcined... | 01/06/2004 |
| 6673734 | Crystalline microporous oxide catalysts having increased Lewis acidity and methods for the preparation thereof A catalyst component, a catalyst, and a process for making the component and catalyst are disclosed herein. Also disclosed herein is a fluid catalytic cracking process for converting petroleum feedstocks to lower boiling products wherein the feedstock is ... | 01/06/2004 |
| 6670295 | Highly active midbarrel hydrocracking catalyst and the preparation thereof The present invention relates to a highly active midbarrel hydrocracking catalyst and a process for the preparation thereof. The support of the catalyst comprises a modified zeolite-Y, a modified zeolite-ଲ, alumina, etc. The composite of the modifie... | 12/30/2003 |
