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| Number | Title | Issue Date |
| 7402546 | Magnesium chloride support The invention relates to supports comprising inorganic oxide particles coated with magnesium chloride and a method for making them. The inorganic oxide has a mean particle diameter of less than 5 microns and is used as a seed to crystallize magnesium chloride from s... | 07/22/2008 |
| 7259129 | Silver-containing catalysts, the manufacture of such silver-containing catalysts, and the use thereof A high activity and high selectivity silver catalyst comprising silver and, optionally, one or more promoters supported on a suitable support material having the form of a shaped agglomerate. The structure of the shaped agglomerate is that of a hollow cylinder havin... | 08/21/2007 |
| 7247760 | Hydrogenation palladium-silver catalyst and methods A catalyst composition comprising palladium, silver and a support material (preferably alumina) is contacted with a liquid composition comprising an iodide component such as ammonium iodide, and the catalyst is then calcined. An improved process for hydrogenation, e... | 07/24/2007 |
| 7119153 | Dual metallocene catalyst for producing film resins with good machine direction (MD) elmendorf tear strength This invention relates to catalyst compositions comprising a first metallocene compound, a second metallocene compound, at least one chemically-treated solid oxide, and at least one organoaluminum compound. This invention also relates to methods to prepare and use t... | 10/10/2006 |
| 7053022 | Hydrothermally synthesized MO-V-M-NB-X oxide catalysts for the selective oxidation of hydrocarbons Hydrothermally synthesized catalysts comprising a mixed metal oxide are utilized to produce unsaturated carboxylic acids by the vapor phase oxidation of an alkane, or a mixture of an alkane and an alkene, in the presence thereof; or to produce unsaturated nitriles b... | 05/30/2006 |
| 7041617 | Catalyst compositions and polyolefins for extrusion coating applications This invention relates to the field of olefin polymerization catalyst compositions, and methods for the polymerization and copolymerization of olefins, including polymerization methods using a supported catalyst composition. In one aspect, the present invention enco... | 05/09/2006 |
| 6969693 | Immobilised ionic liquids Ionic liquids are immobilized on a functionalized support which carries or contains one component of the ionic liquid, or a precursor to such a component. The ionic liquid may be immobilized via the anion by treating a support with an anion source, e.g., an inorgani... | 11/29/2005 |
| 6872684 | Catalysts for oxychlorination of ethylene to 1,2-dichloroethane Catalysts for oxychlorination of ethylene to 1,2-dichloroethane, comprising compounds of copper and magnesium supported on alumina, in which the copper, expressed as metal, is present in an amount of 7 to 12% by weight and the Mg/Cu ratio is 0.05 to 1, and wherein t... | 03/29/2005 |
| 6864212 | Bismuth- and phosphorus-containing reforming catalysts, method of making and naphtha reforming process Bismuth- and phosphorus-containing naphtha reforming catalysts, methods of making such catalysts, and a naphtha reforming process using such catalysts. ... | 03/08/2005 |
| 6806328 | Polymerization catalyst activator complexes and their use in a polymerization process The present invention includes polymerization catalyst activator complexes which include at least Group 13 metals. The activator complexes of the invention are prepared, in general, by reacting a halogenated aryl Group 13 metal compound with a diol. The activator co... | 10/19/2004 |
| 6780815 | Process for preparing fluorination catalyst A process for preparing a fluorination catalyst using a low pressure activating step followed by a high pressure activating step. ... | 08/24/2004 |
| 6635598 | Stable and selective dehydrogenation catalyst and a process for the preparation thereof A novel catalyst for use in dehydrogenation of saturated hydrocarbons to unsaturated hydrocarbons and a method for its preparation is disclosed. Said catalyst comprises a composite incorporated within its spatial geometry on a percentage by weight basis, ... | 10/21/2003 |
| 6608155 | Metal halide solid acids and supported metal halides as catalysts for the preparation of hydrocarbon resins Supported metal halides and metal halide solid acids are used as catalysts for the polymerization of a feed stream containing at least one of pure monomer, C5 monomers, and C9 monomers to produce hydrocarbon resins. Freely-associated water may be removed ... | 08/19/2003 |
| 6605561 | Activator solid support for metallocene catalysts in the polymerization of olefins, a process for preparing such a support, and the corresponding catalytic system and polymerization process Activator solid support for metallocenes as catalysts in the polymerization of olefins, characterized in that it consists of a group of support particles for a solid catalytic component, which are formed from at least one porous mineral oxide, the said pa... | 08/12/2003 |
| 6593269 | Catalysts for exothermic reactions on a fixed bed Catalysts for exothermic reactions conducted in a fixed bed, comprising an inert diluent constituted by metal granules in which the metal has a thermal conductivity of more than 0.5 W/cm/K, particularly catalysts for the oxychlorination of ethylene to 1,2... | 07/15/2003 |
| 6524990 | Active fluoride catalysts for fluorination reactions Active fluoride catalysts that are useful in producing electrophilic fluorination agents; especially useful in producing BDM from the reaction of fluorine with carbon dioxide and FTM from the reaction of fluorine with carbonyl fluoride. The fluoride catal... | 02/25/2003 |
| 6511593 | Homogeneous bed of catalyst and a process for transforming hydrocarbons into aromatic compounds using said bed The invention relates to a homogeneous bed of catalyst particles comprising at least one amorphous matrix, at least one noble metal, at least one additional metal M and at least one halogen, and in which, for a catalyst particle: CPt is the loc... | 01/28/2003 |
| 6495487 | Selective bifunctional multimetallic reforming catalyst A novel 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, indium and lanthanide-series metal. Utilization of this catalyst in the convers... | 12/17/2002 |
| 6476164 | Carbenium cationic complexes suitable for polymerization catalysts This description addresses a process for the preparation of polyolefins from one or more olefinic monomers comprising combining under polymerization conditions said olefins with the product of combining i) an organometallic catalyst compound and ii) a coc... | 11/05/2002 |
| 6414209 | Catalyst for converting paraffinic hydrocarbon into corresponding olefin The invention relates to a calcinated catalyst for converting paraffinic hydrocarbon into corresponding olefin through dehydrogenation. The catalyst is an oxidic, heat-stable carrier material and contains a catalytic active constituent, which is applied o... | 07/02/2002 |
| 6403743 | Petroleum resins and their production with supported catalyst Petroleum resins are produced by using a supported halide based Lewis acid polymerization catalyst wherein the Lewis acid is chemically bound to the support and free hydrogen halide and/or alkane formed by the reaction of the Lewis acid with the support h... | 06/11/2002 |
| 6316377 | Rare earth oxide fluoride nanoparticles and hydrothermal method for forming nanoparticles A hydrothermal method for forming nanoparticles of a rare earth element, oxygen and fluorine has been discovered. Nanoparticles comprising a rare earth element, oxygen and fluorine are also described. These nanoparticles can exhibit excellent refractory p... | 11/13/2001 |
| 6294500 | Production of polyethylene having a bimodal molecular weight distribution A process for producing high density polyethylene, the process comprising polymerising ethylene, or copolymerising ethylene and an alpha-olefinic comonomer comprising from 3 to 10 carbon atoms, in the presence of a catalyst system comprising first and sec... | 09/25/2001 |
| 6284699 | Modified particles, catalyst for olefin polymerization containing the same, and method for producing olefin polymer Modified particles obtained by a process comprising contacting water-containing particles(a), an organometallic compound(b) and a compound(c) having a functional group containing active hydrogen or a non-proton donative Lewis basic functional group, and h... | 09/04/2001 |
| 6218332 | (Polyfluoroaryl) fluoroanions of aluminum, gallium, and indium of enhanced utility, uses thereof, and products based thereon The (polyfluoroaryl)fluoroanions of aluminum, gallium, and indium are novel weakly coordinating anions which are highly fluorinated. (Polyfluoroaryl)fluoroanions of one such type contain at least one ring substituent other than fluorine. These (polyfluoro... | 04/17/2001 |
| 6214764 | Paraffin-isomerization catalyst and process An improved catalyst is disclosed for the conversion of hydrocarbons which comprises an alumina support, a Friedel-Crafts metal halide, and a platinum-group metal component, wherein the support comprises primarily eta alumina having defined narrow pore-si... | 04/10/2001 |
| 6194346 | Photocatalyst and method of making Fluorine contained within a photocatalyst layer containing titanium oxide and other metallic oxide semiconductors increases the metallic oxide's photocatalytic activity. The described photocatalyst may be in the form of either film, flake, particulate, or... | 02/27/2001 |
| 6194345 | Process for activating halogenated catalysts, catalysts obtained by this process, and use of these catalysts in acid catalyst processes The invention relates to a process of activating a supported acid catalyst, and consists in the conversion of Lewis acid-type acid sites which are deposited on a solid substrate into activated acid sites in a non-oxydizing acid medium. The catalyst is exp... | 02/27/2001 |
| 6191064 | Catalyst material, the preparation thereof and the use thereof in converting hydrocarbons A catalyst composition suitable for the conversion of n-butane to butenes. The same catalyst composition that with chlorination is further suitable, when used in the conversion of n-butane, for the production of an increased amount of BTX (benzene-toluene... | 02/20/2001 |
| 6187280 | Process for the preparation of aluminum fluoride Process for preparing aluminum fluoride having an high surface area and high pore volume comprising the fluorination with HF of alumina having surface area of at least 150 m2 /g and pore volume not lower than 0.3 cc/g, said alumina comprising f... | 02/13/2001 |
| 6184172 | Mixed fluorination catalyst Mixed fluorination catalyst comprising one or more nickel and chromium oxides, halides and/or oxyhalides deposited on a support composed of aluminium fluoride or of a mixture of aluminium fluoride and alumina, characterized in that the weight of nickel/we... | 02/06/2001 |
| 6180557 | Supported catalyst useful for Friedel-Crafts reactions and process for the preparation of aralkylated aromatic compounds using the catalyst A supported catalyst and a process for the preparation of the catalyst, the catalyst containing mixed metal oxides or halides deposited on porous catalyst carriers or supports, useful for heterogeneously or solid catalyzed Friedel-Crafts reactions such as... | 01/30/2001 |
| 6177381 | Layered catalyst composition and processes for preparing and using the composition This invention relates to a layered catalyst composition, a process for preparing the composition and processes for using the composition. The catalyst composition comprises an inner core such as alpha-alumina, and an outer layer bonded to the inner core ... | 01/23/2001 |
| 6150296 | Process for preparing a catalyst suitable for use in isomerizing hydrocarbons, the catalyst thus obtained, and its use A process for preparing an activated isomerization or alkylation catalyst composition in which a catalyst composition comprising a Group VIII noble metal and a hydrocarbon-substituted aluminum compound on an alumina carrier containing up to 20 wt. % of ot... | 11/21/2000 |
| 6149799 | Catalyst compromising a mixed sulphide and its use for hydrorefining and hydroconverting hydrocarbons The invention concerns a catalyst for hydrorefining and hydroconverting hydrocarbon feeds, comprising a mixed sulphide comprising at least two elements selected from elements with an atomic number selected from the group formed by the following numbers: 3... | 11/21/2000 |
| 6121186 | Catalyst based on a halogenated alumina, its preparation and use for the isomerization of normal C4 -C6 paraffins The invention concerns a catalyst composed of at least one halogen, at least one metal from group VIII and a formed support of gamma alumina and optionally eta alumina, the catalyst being characterized in that the smallest average dimension of said suppor... | 09/19/2000 |
| 6096678 | Process for the preparation of supported aluminium chloride catalyst containing organo aluminium compound A process for the preparation of an inert oxide supported metal halide organo aluminium compound catalyst. The catalyst is obtained by reacting an activated support having surface hydroxyl groups with aluminium chloride selected from aluminium chloride so... | 08/01/2000 |
| 6090992 | Isomerization catalyst system, method of making and method of using such catalyst system in the isomerization of saturated hydrocarbons A catalyst system comprising alumina, at least one carburized transition metal, and at least one halogen component, and a method of preparing such catalyst system which comprises incorporating at least one transition metal compound into alumina thereby fo... | 07/18/2000 |
| 6087294 | Dispersion and stabilization of reactive atoms on the surface of metal oxides Particulate metal oxide compositions having reactive atoms stabilized on particulate surfaces and methods for reacting the compositions with saturated and unsaturated species are provided. The preferred particulate metal oxides of the compositions are nan... | 07/11/2000 |
| 6083870 | Alkaline earth metal compound-supported silver catalysts Propylene is oxidized to propylene oxide in the vapor phase using an oxygen-containing gas and a supported silver catalyst comprising silver and a support comprised in whole or in substantial part of certain alkaline earth metal compounds. The alkaline ea... | 07/04/2000 |
