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| Number | Title | Issue Date |
| 6355824 | Catalyst system for producing aromatic carbonates A method and catalyst system for producing aromatic carbonates from aromatic hydroxy compounds. In one embodiment, the method includes the step of contacting at least one aromatic hydroxy compound with oxygen and carbon monoxide in the presence of a carbo... | 03/12/2002 |
| 6355595 | Group 5 metal promoted iridium carbonylation catalyst A solid supported catalyst suitable for the vapor phase carbonylation of lower aliphatic alcohols, ethers, ester, and ester-alcohol mixtures, and desirably, methanol, to produce acetic acid, methyl acetate and mixtures thereof. The solid supported catalys... | 03/12/2002 |
| 6348430 | Exhaust gas treatment catalyst for internal combustion engines with two catalytically active layers on a carrier structure A catalyst for treating the exhaust gas from internal combustion engines is provided, wherein the catalyst contains two catalytically active layers supported on a support. The first catalytically active layer contains a platinum group metal in close conta... | 02/19/2002 |
| 6348431 | Method for low temperature preparation of a noble metal alloy A method for producing fine, essentially contamination free, noble metal alloys is disclosed. The alloys comprise particles in a size range of 5 to 500 nm. The method comprises 1. A method for preparing a noble metal alloy at low temperature, the method c... | 02/19/2002 |
| 6346190 | Desulfurization and novel sorbents for same Particulate sorbent compositions consisting essentially of zinc ferrite, nickel and an inorganic binder, wherein the zinc ferrite and nickel of reduced valence, are provided for the desulfurization of a feedstream of cracked-gasoline or diesel fuels in a ... | 02/12/2002 |
| 6342465 | Process for preparing a catalyst A process for preparing a catalyst which has a catalytically active coating of high surface area finely divided materials and catalytically active components on an inert carrier structure. A powder mixture of the finely divided materials used is impregnat... | 01/29/2002 |
| 6339037 | Catalysts for methacrylic acid production and process for producing methacrylic acid Improved catalyst for use in production of methacrylic acid by vapor phase oxidation reaction and/or vapor phase oxidative dehydrogenation reaction of at least one compound selected from methacrolein, isobutylaldehyde and isobutyric acid is provided. This... | 01/15/2002 |
| 6337300 | Shaped metal fixed-bed catalyst, a process for its preparation and its use A shaped metal fixed-bed catalyst is disclosed which contains at least one catalyst alloy formed of a catalyst metal and an extractable alloying component. The catalyst is activated in an outer layer with a thickness of 0.1 to 2.0 mm starting from the sur... | 01/08/2002 |
| 6335305 | Catalyst for purifying exhaust gas A catalyst for purifying an exhaust gas includes a support and a noble metal loaded on the support. The support includes a mixture containing a porous oxide and a composite oxide. The composite oxide is expressed by the following formula: (Al2 ... | 01/01/2002 |
| 6333294 | Fischer-tropsch processes and catalysts with promoters A process is disclosed for producing hydrocarbons. The process involves contacting a feed stream comprising hydrogen and carbon monoxide with a catalyst in a reaction zone maintained at conversion-promoting conditions effective to produce an effluent stre... | 12/25/2001 |
| 6332976 | Catalyst containing phosphorous and a process hydrotreatment of petroleum feeds using the catalyst The invention concerns an alumina based catalyst containing, expressed as the oxide content by weight, 2-10% by weight of cobalt oxide CoO, 10-30% by weight of molybdenum oxide MoO3 and 4-10% of phosphorous oxide P2 O5, wi... | 12/25/2001 |
| 6331503 | In-situ formation of metal-molybdate catalysts The method of the present invention involves the in situ formation of metal-molybdate catalyst particles active for methanol oxidation to formaldehyde, with iron as an example, the catalyst is made by mixing particulate forms of Fe2 O3 | 12/18/2001 |
| 6331351 | Chemically active filter material The present invention is an improved active filter material for use in removing target species such as NOx from a fluid stream. The filter of the present invention employs chemically active particles attached to a porous substrate by means of a... | 12/18/2001 |
| 6330947 | 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... | 12/18/2001 |
| 6329314 | Process for activation of a catalyst in the presence of thionic and nitrogenous compounds A process for activation of a hydroconversion catalyst, whereby said catalyst contains at least one metal or element of group VIII, at least one acid element and optionally at least one metal or element of group VI according to which a light petroleum fra... | 12/11/2001 |
| 6326328 | Solid acid catalyst and process for preparing the same The present invention relates to a shaped solid acid catalyst for the isomerization of hydrocarbons and so on, which has a high activity and is excellent in strength and easily handleable, and processes for the preparation thereof. This catalyst comprises... | 12/04/2001 |
| 6325919 | Catalyst support, catalyst, reactor for hydrogenation reaction, and catalytic reaction method A catalyst carrier composed of a refractory inorganic oxide has a rotationally symmetrical shape having a hollow portion, such as a doughnut shape. An outer peripheral surface and the inner peripheral surface separating the hollow portion are linked by cu... | 12/04/2001 |
| 6313062 | Process for the preparation of high activity carbon monoxide hydrogenation catalysts; the catalyst composition, use of the catalysts for conducting such reactions, and the products of such reactions A process for the preparation of a catalyst useful for conducting carbon monoxide hydrogenation reactions, particularly Fischer-Tropsch reactions; the catalyst compositions, use of the catalyst compositions for conducting such reactions, and the products ... | 11/06/2001 |
| 6310146 | Silsesquioxane resin with high strength and fracture toughness and method for the preparation thereof A cured silsesquioxane resin and method for its preparation are disclosed. By using a silyl-terminated hydrocarbon in the hydrosilylation reaction curable composition used to prepare the cured silsesquioxane resin, the cured silsesquioxane resin has impro... | 10/30/2001 |
| 6309758 | Promoted porous catalyst A novel precious metal doped porous metal catalyst is disclosed. The precious metal is present in from 0.01 to 1.5 weight percent and distributed throughout the particles of porous metal to provide a surface to bulk ratio distribution of not greater than ... | 10/30/2001 |
| 6306794 | 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 composite oxide catalyst is obtained by preparing a composite of catalytic components simultaneously with the formation of the precurso... | 10/23/2001 |
| 6303538 | Process for producing metallic fiber boards functionalized by catalysts and boards so produced The present invention discloses metallic fiber boards having catalytic functionality and processes for producing the same. The boards are formed from a mesh of metallic fibers, each fiber having a first layer of an oxide and a second layer of a porous oxi... | 10/16/2001 |
| 6303536 | Process of preparing catalyst for producing alkenyl acetates This invention relates to a preparation process of a catalyst which comprises a noble metal and a metal as catalysis promoter in combination with an alkali or alkaline earth metal compound, supported on the outer surface of a carrier. The preparation proc... | 10/16/2001 |
| 6297186 | Osmium oxide composition The present invention provides an osmium oxide composition comprising an osmium oxide microencapsulated in an aromatic polyolefin (hereinafter abbreviated as MCOsOx), a method for preparation of MCOsOx, which comprises allowing an os... | 10/02/2001 |
| 6297185 | Catalyst A catalyst comprises an electrically conductive ceramic substrate having at least one noble metal supported thereupon. The substrate may be a transition metal based ceramic such as a carbide, nitride, boride, or silicide of a transition metal, and the nob... | 10/02/2001 |
| 6294140 | Layered noble metal-containing exhaust gas catalyst and its preparation A catalyst for treating exhaust gas from an internal combustion engine includes a carrier body coated with an inner layer and an outer layer. The inner layer includes platinum deposited on a first support material and on a first oxygen storage component, ... | 09/25/2001 |
| 6294696 | Process for hydrogenating organic functions A process for hydrogenating organic compounds containing at least one function selected from aldehyde, ketone, ester, acid and nitro functions and/or containing an aromatic group is carried out in the presence of a catalyst comprising at least one support... | 09/25/2001 |
| 6294492 | Catalytic reforming catalyst activation Catalyst activation of a platinum reforming catalyst system contained in a multiple reactor system by simultaneously reducing the catalyst with hydrogen while introducing a nonmetallic chlorine-containing compound into a reactor of the multiple reactor sy... | 09/25/2001 |
| 6291381 | Catalytic reforming catalyst activation Catalyst activation of a platinum reforming catalyst system contained in a multiple reactor system by simultaneously reducing the catalyst with a sustained hydrogen flow through the multiple reactor system while introducing a nonmetallic chlorine-containi... | 09/18/2001 |
| 6288007 | Hydrogenation catalyst with high sulphur tolerance A catalyst with a high sulphur tolerance for the hydrogenation of middle distillate aromatics which comprises as a support (a) an alumina, the surface of which has been modified by contacting it with a silicon-containing compound, or (b) a silica, the sur... | 09/11/2001 |
| 6288295 | Catalyst for use in organic compound transformation reactions A novel catalyst comprises at least one support and at least one metal from group VIII or the periodic table e.g. palladium and is characterized in that the metal particles deposited on the support are not isolated from each other, e.g. at least 50% of th... | 09/11/2001 |
| 6281160 | Process for preparing catalysts for use in organic compound transformation reactions In a process for preparing a catalyst comprising at least one support, at least one metal from group VIII of the periodic table and at least one additional element M selected from the group formed by germanium, tin, lead, rhenium, gallium, indium and thal... | 08/28/2001 |
| 6271309 | Curable compositions comprising the hydrosilation product of olefin-containing polymers and organosiloxane hydrides, cured compositions made therefrom, and methods of making same The present invention provides curable compositions comprising the hydrosilation product of olefin-containing polymers and organosiloxane hydrides. The curable compositions may be cured to form low surface energy cured composition which may be suitable, f... | 08/07/2001 |
| 6261990 | Composite catalyst for purification of exhaust gas A composite catalyst includes a first catalyst part containing an Ir catalyst and a second catalyst part covering the first catalyst part and containing a perovskite type composite oxide. The perovskite type composite oxide contributes mainly to oxidation... | 07/17/2001 |
| 6261989 | Catalytic converter for cleaning exhaust gas A catalytic converter for cleaning exhaust gas includes a heat-resistant support, and a catalytic coating formed on the heat-resistant support. The catalytic coating contains Pd-carrying particles of a cerium complex oxide, Pt & Rh-carrying particles of z... | 07/17/2001 |
| 6251820 | Catalyst for purifying exhaust gas and process for producing the same A catalyst for purifying an exhaust gas includes amorphous and homogeneous composite oxide particles, a catalytic noble metal element, and metallic oxide particles. The metallic oxide particles interpose among the composite oxide particles to connect them... | 06/26/2001 |
| 6248689 | Self-regenerating diesel exhaust particulate filter and material This is a self-regenerating catalyst member which may be used to remove particulate carbon and residual hydrocarbonaceous material from engine exhaust, especially those emanating from diesel engines. Specifically, the invention is an oxidation catalyst pr... | 06/19/2001 |
| 6242379 | Dehydrogenation catalysts A catalyst for the production of alkenylaromatics from alkylaromatics, wherein the catalyst is predominantly iron oxide, an alkali metal compound and a small amount of a source for palladium or platinum. Additional components of the catalyst may include c... | 06/05/2001 |
| 6239066 | Process for forming high activity catalysts Provided are high activity catalysts based upon gamma alumina containing substrates impregnated with one or more catalytically active metals, which catalysts in addition contain a nanocrystalline phase of alumina of a crystalline size at the surface of le... | 05/29/2001 |
| 6239063 | Selective bifunctional multimetallic reforming catalyst A catalyst and the use thereof in a reforming process is disclosed. The catalyst comprises a refractory inorganic oxide, platinum-group metal, Group IVA(IUPAC 14) metal, and lanthanide-series metal in a specified ratio. Utilization of this catalyst in the... | 05/29/2001 |
