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| Number | Title | Issue Date |
| 7476768 | Catalyst for oxidizing 2,2,2-trifluoroethanol and process for producing trifluoroacetaldehyde A catalyst for oxidizing 2,2,2-trifluoroethanol to form trifluoroacetaldehyde. The catalyst has a long life and achieves high conversion and selectivity. The catalyst of the present invention comprises one or more metal oxides, including at least vanadium oxi... | 01/13/2009 |
| 7419932 | Method for preserving catalyst The method for preserving a catalyst of the present invention is characterized in that, in a process for continuously producing an objective product by a vapor phase oxidation reaction using a phosphorus-molybdenum-vanadium catalyst containing phosphorus, molybdenum... | 09/02/2008 |
| 7390932 | Method for preparing highly concentrated, gaseous formaldehydes Process for preparing high-concentration gaseous formaldehyde having a molar CH2O:H2O ratio of ≧0.6 from an aqueous formaldehyde solution by evaporation of at least part of the solution, in which the aqueous formaldehyde solution is heated to... | 06/24/2008 |
| 7361794 | Zone reactor In a method of converting alkanes to their corresponding alcohols and ethers a vessel comprises a hollow, unsegregated interior defined first, second, and third zones. In a first embodiment of the invention oxygen reacts with metal bromide in the first zone to provi... | 04/22/2008 |
| 7345207 | Production of high-concentration formaldehyde solutions Process for preparing high-concentration formaldehyde solutions having a CH2O content of ≧50% by weight from an aqueous formaldehyde solution having a lower CH2O content by evaporation of part of this solution (partial evaporation), in which ... | 03/18/2008 |
| 7339084 | Method for the production of acetaldehyde from ethylene and oxygen A single-stage method for the oxidation of ethylene to acetaldehyde in the presence of an aqueous catalyst solution comprising copper chloride and palladium chloride under maintenance of the circulation of the aqueous catalyst solution in a recycle reactor, comprise... | 03/04/2008 |
| 7273954 | Catalytic method for the production of carbonyl compounds The invention relates to a catalytic method for the production of aliphatic and aromatic carbonyl compounds with at least one aldehyde or ketone function, whereby said compounds can also comprise at least one aldehyde and ketone function. A starting material compris... | 09/25/2007 |
| 7240723 | Tube bundle heat exchanger comprising tubes with expanded sections A heat exchanger useful for high temperature applications such as EGR cooling and fuel reformer applications comprises a tube bundle made up of a plurality of tubes, each having at least one end expanded to an enlarged polygonal cross-section, and having central por... | 07/10/2007 |
| 7229945 | Process of making mixed metal oxide catalysts for the production of unsaturated aldehydes from olefins The present invention is for a process for making a catalyst for production of unsaturated aldehydes, such as methacrolein, by gas phase catalytic oxidation of olefins, such as isobutylene, said catalyst containing oxides of molybdenum, bismuth, iron, cesium, tungst... | 06/12/2007 |
| 7230150 | Zone reactor In a method of converting alkanes to their corresponding alcohols, ethers, olefins, and other hydrocarbons, a vessel comprises a hollow, unsegregated interior defined first, second, and third zones. In a first embodiment of the invention oxygen reacts with metal hal... | 06/12/2007 |
| 7226567 | Multi-tube fixed-bed reactor, especially for catalytic gas phase reactions A multitube fixed bed reactor and the use of such a reactor for carrying out catalytic gas-phase reactions, in particular for carrying out exothermic and endothermic catalytic gas-phase reactions such as the preparation of phthalic anhydride (PA), acrylic acid, meth... | 06/05/2007 |
| 7161050 | Method and apparatus for synthesizing olefins, alcohols, ethers, and aldehydes A reactant selected from the group consisting of alkanes, alkenes, alkynes, dienes, and aromatics is reacted with a halide selected from the group including chlorine, bromine, and iodine to form a first reaction product. The first reaction product is reacted with a ... | 01/09/2007 |
| 7154009 | Long-term operation of a heterogeneously catalyzed gas phase partial oxidation of propene to acrolein A process for the long-term operation of a heterogeneously catalyzed gas phase partial oxidation of propene to acrolein, in which the temperature of the fixed catalyst bed is increased over the time and the gas phase partial oxidation is interrupted at least once pe... | 12/26/2006 |
| 7148390 | Integrated process for synthesizing alcohols, ethers, aldehydes, and olefins from alkanes Alcohols, ethers, aldehydes, and olefins are manufactured from alkanes by mixing an alkane and a halogen selected from the group including chlorine, bromine, and iodine in a reactor to form alkyl halide and hydrogen halide. The alkyl halide only or the alkyl halide ... | 12/12/2006 |
| 7131264 | Method of operating a reformer and a vehicle Disclosed herein are methods for operating a reformer and for operating a vehicle. In one embodiment, the method for operating the reformer comprises: introducing an oxidant and fuel to a reformer at greater than or equal to about 25,000/hr space velocity; combustin... | 11/07/2006 |
| 7122707 | Method for producing an annular shell catalyst and use thereof for producing acrolein Coated catalysts which are suitable for the gas-phase catalytic oxidation of propene to acrolein are prepared by a process in which rings are used as supports and water is used as a binder. ... | 10/17/2006 |
| 7119227 | Process for catalytic vapor phase oxidation The present invention provides a process for catalytic vapor phase oxidation which prevents runaway reaction or early deterioration of a catalyst, in the production of (meth)acrylic acid or the like from propylene or isobutylene by the catalytic vapor phase oxidatio... | 10/10/2006 |
| 7091387 | Process to convert alkanes into primary alcohols This invention provides a process to convert alkanes to primary alcohols of the same carbon number. Carbon numbers of particular interest are C8 to C18. The process comprises the steps of: a) halogenating a linear or branched (or mixture of lin... | 08/15/2006 |
| 7037875 | Catalyst support A support for a catalyst for controlling vehicular exhaust emissions comprising a high surface area refractory metal oxide, e.g., gamma-alumina, having a monomolecular layer of a second oxide selected from the group consisting of titanium dioxide, cerium dioxide and... | 05/02/2006 |
| 7019182 | Method of hydrocarbon preservation and environmental protection Gas phase hydrocarbons resulting from the operation of offshore petroleum wells are converted into corresponding liquid products which are mixed with liquid phased hydrocarbons resulting from operation of the offshore petroleum well for delivery therewith. ... | 03/28/2006 |
| 7001574 | Apparatus for producing high molecular weight liquid hydrocarbons from methane and/or natural gas A mixture of natural gas and air is converted to a C5–C19 diesel fuel-grade liquid hydrocarbon. The natural gas and air mixture is supplied to the input of a catalytic partial oxidation reactor. The carbon-containing gas output of the catalyt... | 02/21/2006 |
| 6998504 | Method for the catalytic gas phase oxidation of propene into acrylic acid A process for the catalytic gas-phase oxidation of propene to acrylic acid, in which the reaction gas starting mixture is oxidized, with a high propene loading, in a first reaction stage, over a first fixed-bed catalyst which is housed in two successive reaction zon... | 02/14/2006 |
| 6974843 | Cogeneration of organic compounds with synthesis gas by catalytic partial oxidation Disclosed herein are methods and apparatuses for cogenerating organic compounds (e.g., benzene, toluene, xylene, formate, acetate, propionate, butyrate, C1-C4 acids, C1-C4 alcohols, methanol, naphthalene, acenaphthylene, f... | 12/13/2005 |
| 6812366 | Catalyst useful for oxidation reactions A catalyst useful for oxidation reactions is disclosed. The catalyst is useful for the gas phase oxidation of alkanes, propylene, acrolein, or isopropanol to unsaturated aldehydes or carboxylic acids. ... | 11/02/2004 |
| 6781018 | Process and catalyst for production of formaldehyde from dimethyl ether Dimethyl ether is converted to formaldehyde using a supported catalyst comprising molybdenum and/or vanadium oxides. The surface density of the oxide(s) ranges from greater than that for the isolated monomeric oxides upwards, so long as there is a substantial absenc... | 08/24/2004 |
| 6781017 | Method for the production of acrolein or acrylic acid or the mixture thereof from propane In a process for the preparation of acrolein or acrylic acid or a mixture thereof from propane, the propane is subjected, in a first reaction stage, to a partial dehydrogenation under heterogeneous catalysis to give propene, of the components contained in the produc... | 08/24/2004 |
| 6670509 | Conversion of organic substrates to oxygenates or olefins using a bicyclo imide promoter A process for oxygenating organic substrates such as aliphatic hydrocarbons has been developed. The process involves contacting the organic substrate with oxygen in the presence of a bicyclo imide promoter and a metal co-catalyst. The process is preferabl... | 12/30/2003 |
| 6657079 | Method for mixing gases and apparatus therefor A method for mixing a plurality of gases including forming a helical flow within a mixing vessel thereby allowing simplification of construction, avoiding pressure drop to the fullest possible extent, and expediting the mixture lest the volume of a gas wi... | 12/02/2003 |
| 6624332 | In situ formation of metal-molybdate catalysts for methanol oxidation to formaldehyde 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 | 09/23/2003 |
| 6613940 | Method for catalytic gas phase oxidation In the reaction of catalytic gas phase oxidation by means of a shell-and-tube type reactor adapted to circulate a heating medium to the shell of the reactor through the medium of a circulation device connecting an annular conduit connected thereto, a meth... | 09/02/2003 |
| 6563006 | Catalytic oxidative conversion of hydrocarbons to aldehydes Catalytic processes have been developed for direct ambient air oxidative conversion of hydrocarbons to aldehydes and unsaturated alcohols. Aliphatic hydrocarbons including methane, hexanes, octanes, decanes, gasoline, diesel fuel, oils, solvents and other... | 05/13/2003 |
| 6555715 | Conversion of light paraffins to oxygenates or olefins using an imide promoter A process has been developed for oxygenating linear C2 to C6 alkanes to ketones or aldehydes. The process involves reacting the alkanes with oxygen in the presence of a catalyst comprising an imide promoter and a metal co-catalyst. A... | 04/29/2003 |
| 6541664 | Method of heterogeneous catalyzed vapor-phase oxidation of propane to acrolein and/or acrylic acid In a process for heterogeneously catalyzed gas-phase oxidation, a reaction gas starting mixture comprising propane, molecular oxygen and, if desired, inert gas is passed at from 300 to 500° C. over a fixed-bed catalyst.... | 04/01/2003 |
| 6437193 | Vapor phase oxidation of propylene to acrolein An improved method for the selective vapor phase oxidation of propylene to acrolein in a recirculating solids reactor system using a bismuth molybdate multimetal oxide involving specific reactant concentrations (preferably 5 mol % to 30 mol % propylene, 0... | 08/20/2002 |
| 6414195 | Method of producing formaldehyde directly from methane The present invention provides a method of using a silica-supported 12-molybdosilicic acid catalyst consisting of 12-moloybdosilicic acid supported on silica, in which 12-molybdosilicic acid is supported in an amount not smaller than 10 mass % on silica, ... | 07/02/2002 |
| 6410793 | Production of formaldehyde from carbon oxides and H2S A method wherein a gas stream containing carbon oxide and hydrogen sulfide is first passed in contact with a catalyst comprising a supported metal oxide of a metal selected from the group consisting of vanadium (V), niobium (Nb), molybdenum (Mo), chromium... | 06/25/2002 |
| 6365784 | Preparation of ethylene by gas permeation The invention relates to a process for preparing carbonyl compounds from olefins and an oxidizing agent in which the olefin is oxidized in a reactor, a reaction gas mixture which comprises unoxidized olefin being formed, which comprises separating off uno... | 04/02/2002 |
| 6337424 | Catalysts oxidation of lower olefins to unsaturated aldehydes, methods of making and using the same The present invention provides a catalyst composition for the production of unsaturated aldehydes by the oxidation of the corresponding olefins, and methods of making and using such catalyst compositions. The catalysts of the present invention include com... | 01/08/2002 |
| 6297403 | Process for the preparation of aldehydes and ketones A process for the preparation of vinyl, alkynyl, aryl or heteroaryl aldehydes or vinyl, alkynyl, aryl or heteraoryl ketones includes reacting vinyl-, alkynyl-, aryl- and heteroarylmethyl and -methylene compounds with the aid of a mediator and an oxidant, ... | 10/02/2001 |
| 6294701 | Method of producing formaldehyde directly from methane The present invention provides a silica-supported 12-molybdosilicic acid catalyst comprising a silica carrier and at least 10% by weight, based on the silica amount, of 12-molybdosilicic acid supported on the carrier and a method of producing formaldehyde... | 09/25/2001 |
