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| Number | Title | Issue Date |
| 8026402 | High shear process for cyclohexane production A high shear mechanical device incorporated into a process and system for the production of cyclohexane is capable of decreasing mass transfer limitations, thereby enhancing the cyclohexane production process. A system for the production of cyclohexane from benzene ... | 09/27/2011 |
| 7371908 | Process for catalytic hydrogenation Hydrocarbon streams are hydrogenated catalytically without using a different solvent from the hydrocarbon stream to be hydrogenated, with a basic compound being added to the starting-material stream. The formation of undesired secondary components on the catalyst is... | 05/13/2008 |
| 7361619 | Fischer-Tropsch catalyst production Dispersed Active Metal catalyst for hydrogenation reactions is produced by treating a substantially catalytically inactive metal particulate with a solution capable of oxidizing the metal particulate and comprising of at least one compound of a hydrogenation catalys... | 04/22/2008 |
| 7348463 | Hydrogenation of aromatic compounds A process for hydrogenating aromatic compounds to produce hydrogenated cyclic compound by contacting an aromatic compound with hydrogen under conditions of pressure and temperature to react the hydrogen and aromatic compound in the presence of a catalyst comprising ... | 03/25/2008 |
| 7304011 | Compositions and processes for reducing NOemissions during fluid catalytic cracking Compositions for reduction of NOx generated during a catalytic cracking process, preferably, a fluid catalytic cracking process, are disclosed. The compositions comprise a fluid catalytic cracking catalyst composition, preferably containing a Y-type zeoli... | 12/04/2007 |
| 7230148 | Process for hydrogenation of aromatics in hydrocarbon feedstocks containing thiopheneic compounds The present invention relates to an improved process for the hydrogenation of aromatics in hydrocarbon feedstocks containing thiopheneic compounds as impurities, the aromatics hydrogenation being conducted in a hydrogenation reactor in the presence of a nickel based... | 06/12/2007 |
| 7198711 | Catalytic cracking processing using an MCM-68 catalyst A process for catalytic cracking of a hydrocarbon feedstock feeds to produce an enhanced yield butylenes and isobutane comprises contacting the feedstock with a catalyst composition comprising MCM-68. The MCM-68 may be used as the primary cracking catalyst or may be... | 04/03/2007 |
| 7196034 | Nickel-iron-silica-alumina The invention is directed to a catalyst suitable for the hydrogenation of hydrocarbon resins, comprising a supported nickel on silica and alumina catalyst, said catalyst having a nickel content of 45 to 85 wt. %, a silicon content, calculated as SiO2, of ... | 03/27/2007 |
| 7175754 | Process for the production of low benzene gasoline A process for the production of low benzene content gasoline is disclosed wherein a full boiling range naphtha is fractionated to produce a light naphtha, a medium naphtha and a heavy naphtha. The benzene is contained in the medium naphtha and this stream is subject... | 02/13/2007 |
| 7081555 | Process for hydrogenation of aromatics in hydrocarbon feedstocks containing thiopheneic compounds The present invention relates to an improved process for the hydrogenation of aromatics in hydrocarbon feedstocks containing thiopheneic compounds as impurities, the aromatics hydrogenation being conducted in a hydrogenation reactor in the presence of a nickel based... | 07/25/2006 |
| 7078130 | Metallic mesoporous transition metal oxide molecular sieves, room temperature activation of dinitrogen and ammonia production This invention provides novel stable metallic mesoporous transition metal oxide molecular sieves and methods for their production. The sieves have high electrical conductivity and may be used as solid electrolyte devices, e.g., in fuel cells, as sorbents, e.g. for h... | 07/18/2006 |
| 6812369 | Hydrotreating catalyst composition and processes therefor and therewith A composition comprises a hydrogenation catalyst supported on an inorganic support which comprises aluminum, zirconium, and a borate. A process for producing the composition comprises the steps of (1) contacting an aluminum salt, a zirconium salt, and an acidic boro... | 11/02/2004 |
| 6750374 | Manufacture of cyclohexane from benzene and a hydrogen source containing impurities A process for producing cyclohexane by benzene hydrogenation using a hydrogen source that contains impurities, such as carbon monoxide and/or light hydrocarbons, wherein a supported catalyst reduces benzene to cyclohexane and carbon monoxide to methane and water. Al... | 06/15/2004 |
| 6676919 | Method for producing platinum metal catalysts The invention relates to a method for producing catalysts by immersion coating a metallic support with at least one platinum metal. An aqueous medium which comprises at least one platinum metal complex, at least one reduction agent and at least one comple... | 01/13/2004 |
| 6670515 | Material constituted by ultrafine metallic and oxide particles A material composed of ultrafine particles, comprising at least a metal element M having catalytic properties and at least a metal element M' having a standard oxidation potential less than that of M, part at least of M' atoms being in oxidized form, the ... | 12/30/2003 |
| 6632414 | Mini-structured catalyst beds for three-phase chemical processing Three-phase chemical hydrogenation reactions involving the processing of gas-liquid reactant feed streams over "mini-structured" solid catalyst beds formed e.g., of channeled honeycomb monoliths incorporating solid catalysts achieve reaction efficiencies ... | 10/14/2003 |
| 6534436 | Method for the production of cobalt catalysts supported on silicon dioxide and their use The invention relates to catalysts comprising cobalt supported on a solid silica support and, in particular, to a method for manufacturing such catalysts. The catalysts may be prepared by slurrying a silica powder or impregnating a silica particle with a ... | 03/18/2003 |
| 6509510 | Method for hydrogenating aromatic polymers in the presence of special catalysts Process for hydrogenating aromatic polymers in the presence of catalysts, wherein a metal or mixture of metals from group VIII of the Periodic Table together with a support of silicon dioxide, aluminium dioxide or a mixture thereof is used as the catalyst... | 01/21/2003 |
| 6506953 | Hydroalkylation of aromatic hydrocarbons There is described a process the hydroalkylation of an aromatic hydrocarbon, particularly benzene, to produce a cycloalkyl-substituted aromatic compound, particularly cyclohexylbenzene, comprising the step of contacting the aromatic hydrocarbon with hydro... | 01/14/2003 |
| 6432868 | Bimetallic catalyst comprising fluorine, and its use for hydrogenating aromatic compounds in the presence of sulphurated compounds The invention concerns a catalyst comprising at least two group VIII metals, chlorine, fluorine, and at least one amorphous oxide matrix. The catalytic composition is such that the fluorine content is 1.5% by weight or more of the total catalyst mass. The... | 08/13/2002 |
| 6423664 | Fluorinated catalyst comprising a group VIII metal and an additional metal, and its use for hydrogenating aromactic compounds in the presence of sulphurated compounds The invention concerns a catalyst comprising at least one group VIII metal, at least one additional metal, at least two halogens, including chlorine and fluorine, and at least one amorphous oxide matrix. The catalytic composition is such that the fluorine... | 07/23/2002 |
| 6281163 | Hydrogenation catalyst particles The invention is directed to hydrogenation catalyst particles based on nickel or cobalt and a support, incorporated in a matrix of hardened oil or a derivative thereof, which matrix material is solid at a temperature of 25° C., said particles having an a... | 08/28/2001 |
| 6255530 | Process for the preparation of six-membered ring carbocycles Six-membered ring carbocycles of the formula (II) can be prepared by ring hydrogenation of aromatic compounds of the formula (I) ##STR1## the definitions for which are given in the description, in a reaction system consisting of two liquid, immiscible pha... | 07/03/2001 |
| 6203695 | Hydrotreating hydrocarbon feeds A process for hydrotreating a hydrocarbon feed, comprising subjecting said feed to hydrotreating conditions in the presence of a catalyst comprising an essentially alumina-based extruded support, essentially constituted by a plurality of juxtaposed agglom... | 03/20/2001 |
| 6153805 | Process for obtaining cyclohexane by catalytic benzene hydrogenation A process for the obtention of low impurity cyclohexane content, practically methylcyclopentane (MCP) free, by catalytic hydrogenation of benzene in gas phase in the presence of group VIII metal catalyzers. The catalytic hydrogenation is performed in the ... | 11/28/2000 |
| 6040263 | Catalytic composition based on transition metal complexes, and a process for the hydrogenation of unsaturated compounds A novel non-aqueous catalytic composition comprises at least one quaternary ammonium and/or phosphonium salt in which the anion is selected from the group consisting of tetrafluoroborate, tetrachloroborate, hexafluorophosphate, hexafluoroantimonate, hexaf... | 03/21/2000 |
| 6037513 | 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 diff... | 03/14/2000 |
| 6020285 | Calcium aluminate cement based catalyst Shaped particles suitable for use as a catalyst, or precursor thereto, particularly for the decomposition of hypohalite ions in aqueous solution, comprising a high alumina cement having an aluminium to calcium atomic ratio above 2.5 and at least one oxide... | 02/01/2000 |
| 5928501 | Process for upgrading a hydrocarbon oil A process for treating a hydrocarbon oil feed to reduce total acid number (TAN) and increase API gravity employs a catalyst which includes one or more metals of non-noble Group VIII of the periodic table (e.g., iron, cobalt and nickel), and at least one m... | 07/27/1999 |
| 5865985 | Process for the production of diesel A process for the production of a diesel fuel includes contacting a feedstock comprising cracked stocks in the presence of hydrogen under conditions of elevated temperature and pressure with a first catalyst comprising a Group VI hydrogenation metal compo... | 02/02/1999 |
| 5856603 | Process for the production of cyclohexane The invention is directed to a process for the production of cyclohexane by catalytic hydrogenation of benzene using hydrogen, said process comprising the hydrogenation of benzene in the presence of a supported nickel catalyst having a nickel content of a... | 01/05/1999 |
| 5852130 | Catalytic composition based on transition metal complexes, and a process for the hydrogenation of unsaturated compounds A novel catalytic composition comprises at least one quaternary ammonium and/or phosphonium salt in which the anion is selected from the group formed by tetrafluoroborate, tetrachloroborate, hexafluorophosphate, hexafluoroantimonate, hexafluoroarsenate, t... | 12/22/1998 |
| 5831138 | Dispersed metal sulfide catalysts for hydroprocessing The present invention is directed toward a catalyst composition comprising a catalyst prepared by a process comprising: (a) impregnating an oxide precursor selected from the group consisting of rare earth oxide precursors, yttria precursors and mixtures t... | 11/03/1998 |
| 5817900 | Process for hydrotreating resins to lighten color The color of hydrocarbon resins having carbon-carbon double bonds and containing color bodies is lightened by a hydrotreating process consisting essentially of contacting the resin with hydrogen at a hydrogen pressure of 1 to about 20 bar (14.5 to about 2... | 10/06/1998 |
| 5777186 | Process for hydrogenating benzene in hydrocarbon oils A process for selectively hydrogenating benzene in a hydrocarbon oil is disclosed. The process comprises reacting the hydrocarbon oil with hydrogen gas in the presence of a hydrogenation catalyst comprising at least one metal in Group VIII of the Periodic... | 07/07/1998 |
| 5705723 | Hydrogenation catalyst composition and a hydrogenation process A composition comprises nickel and a support material which comprises aluminum borate and zirconium borate. In one embodiment, this composition additionally comprises rhenium. Preferably, the catalyst support material is a coprecipitate of aluminum borate... | 01/06/1998 |
| 5689021 | Raney-type catalysts for the hydrogenation of halonitroaromatic compounds Halonitroaromatic compounds, e.g., 3-chloro-4-fluoronitrobenzene, are selectively hydrogenated into the corresponding haloaromatic amines, in the essential absence of hydrodehalogenation, by reacting same with hydrogen in the presence of a catalytically e... | 11/18/1997 |
| 5670437 | Method of preparation of a hydrogenation catalyst soluble in an organic liquid phase The method of preparation comprises: a step (a) of placing in solution at least one compound of at least one metal A in at least one organic solvent S, and of at least one reducing compound R of at least one metal B in at least one organic solvent S', a step (... | 09/23/1997 |
| 5668293 | Catalyst and a benzene hydrogenation process using said catalyst The invention concerns a process and catalyst for the production of cyclohexane by hydrogenation of benzene, comprising at least the two following steps: a) gradually introducing the feed of benzene for hydrogenation and a hydrogen-rich gas into a reactio... | 09/16/1997 |
| 5648577 | Dispersed metal sulfide catalysts for hydroprocessing (LAW105) The present invention is directed toward a catalyst composition prepared by a process comprising: (a) impregnating an oxide precursor selected from the group consisting of rare earth oxide precursors, yttria precursors and mixtures thereof, onto an inorga... | 07/15/1997 |
