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| Number | Title | Issue Date |
| 7517829 | Process for the production of Raney nickel catalysts and their use in the hydrogenation of organic compounds The invention relates to a process for the production of Raney nickel catalysts. In this process, the melt of an alloy comprising from 40 to 95 wt. % aluminum, from 5 to 50 wt. % nickel, 0 to 20 wt. % iron, from 0 to 15 wt. % of one or more transition metals selecte... | 04/14/2009 |
| 7365040 | Catalysts A process for preparing a cobalt-based Fischer-Tropsch synthesis catalyst includes introducing a soluble modifying component precursor of the formula Mc(OR)x, where Mc is a modifying component selected from the group comprising Si, Ti, Cu, Zn, Zr, Mn, Ba,... | 04/29/2008 |
| 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 |
| 7361620 | Catalytically active layer A catalytically active layer that is used, for example, as an electrode for a solid electrolyte-based sensor element of a gas sensor for determining a gas component in a gas mixture. The catalytically active layer includes a metallic component, that includes a noble... | 04/22/2008 |
| 7361625 | Photocatalyst producing method, photocatalyst, and gas purifier A carrier supporting titania thereon is further caused to carry a metal compound thereon. This metal compound is hydrogen reduced in a heating atmosphere at a first treatment temperature, then oxidized in a heating atmosphere at a second treatment temperature not hi... | 04/22/2008 |
| 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 |
| 7241718 | Dimethyl ether steam reforming catalyst and method for producing the same The object of the present invention is to achieve excellent reforming ability even at lower temperatures, with a dimethyl ether steam reforming catalyst. According to the present invention, there is provided a dimethyl ether steam reforming catalyst capable o... | 07/10/2007 |
| 7235694 | Process for preparing 4-aminodiphenylamine A process for preparing 4-aminodiphenylamine having the steps of reacting nitrobenzene and aniline in the presence of a complex base catalyst, hydrogenating the reaction mixture with hydrogen, a powdery composite catalyst, and a hydrogenation solvent; separating, re... | 06/26/2007 |
| 7214829 | Method for the production of primary amines by hydrogenating nitriles The present invention relates to an improvement in a process for preparing primary amines by hydrogenating nitriles. The improvement in the hydrogenation process is that a hydrogenation catalyst modified ex situ with preadsorbed alkali metal carbonate or hydrogencar... | 05/08/2007 |
| 7193112 | Process for the production of aromatic amines by heterogeneously catalysed hydrogenation The invention describes a process for the production of aromatic amines by the catalytic hydrogenation of aromatic nitro compounds, with the process being characterized by at least one catalytic hydrogenation step and the catalyst consists at least of a monolithic s... | 03/20/2007 |
| 7176333 | Process for preparing 4-aminodiphenylamine The present invention discloses a process for preparing 4-aminodiphenylamine, which process uses nitrobenzene and aniline as raw materials, a complex base catalyst as condensation catalyst and a powdery composite catalyst as hydrogenation catalyst, and comprises fiv... | 02/13/2007 |
| 7111802 | Apparatus for pressing and other mechanical treatment of materials such as catalysts Methods and apparatus for combinatorial (i.e., high-throughput) materials research, such as catalysis research, that involves parallel apparatus for simultaneously effecting mechanical treatments such as grinding, mixing, pressing, crushing, sieving, and/or fraction... | 09/26/2006 |
| 7094729 | Raney catalyst preparation by gas atomization of molten alloy A method of producing a Raney type catalyst, the method comprising melting together a Raney metal and aluminium to form an alloy mixture, pouring the mixture through a nozzle, directing a gas jet on to the mixture to form a spray of droplets, which droplets are dire... | 08/22/2006 |
| 7087191 | Shell metal catalyst and a precursor thereof, a process for their preparation and the use of the catalyst A process for preparing a shell metal catalyst or a precursor of a shell metal catalyst which process includes the steps of: applying a slurry having a diluent; a catalytically active metal or a precursor compound thereof; and optionally a refractory oxide; designat... | 08/08/2006 |
| 7084302 | Process for preparing 4-aminodiphenylamine A process for preparing 4-aminodiphenylamine using nitrobenzene and aniline as raw materials, a complex base catalyst as the condensation catalyst, and a powdery composite catalyst as the hydrogenation catalyst. The process has 5 process stages including condensatio... | 08/01/2006 |
| 7071140 | Catalyst for the manufacture of acrylonitrile A catalyst comprising a complex of catalytic oxides comprising rubidium, cerium, chromium, iron, bismuth, molybdenum, and at least one of nickel or nickel and cobalt, optionally magnesium, and optionally one of phosphorus, antimony, tellurium, sodium, lithium, potas... | 07/04/2006 |
| 7045484 | Method of making a catalyst A method of making a catalyst. The method comprises the step of leaching alloy particles. Preferably, the alloy particles are hydrogen storage alloy particles. ... | 05/16/2006 |
| 7001586 | CO-free hydrogen from decomposition of methane The generation of CO-free hydrogen from methane, with use of catalyst compositions represented by NixMgyO and NixMgyCuzO. ... | 02/21/2006 |
| 6998366 | Thin layer catalysts based on Raney alloys, and method for the production thereof Raney alloy catalysts applied to a support are described, said catalysts having an extremely thin layer of Raney alloy with a thickness of 0.01 to 100 μm. These catalysts are prepared by vapor deposition of the appropriate metals under reduced pressure. They are ge... | 02/14/2006 |
| 6995115 | Catalyst for the generation of CO-free hydrogen from methane Catalyst compositions useful for the generation of CO-free hydrogen from methane, which catalyst compositions can be represented by NixMgyO and NixMgyCuzO. The present invention also relates to a method for prep... | 02/07/2006 |
| 6995107 | Raney catalyst, process for producing it and process for producing a sugar-alcohol using the same To obtain a Raney catalyst for fixed bed permitting a continuous use with a high initial activity and to produce a high purity sugar-alcohol at a low cost using the same. For this object, sugar-alcohol is produced by: using the powder type Raney catalyst made... | 02/07/2006 |
| 6992041 | Deep desulfurization catalyst, method for preparing the same and method for desulfurization using the same A catalyst for deep desulfurization of a mineral oil corresponding to kerosene, having a nickel component of nickel and nickel oxide, zinc oxide, and aluminum oxide The contents of the nickel component, and the aluminum oxide and the zinc oxide are defined. The nitr... | 01/31/2006 |
| 6971593 | Methods for mechanical treatment of materials such as catalysts Methods and apparatus for combinatorial (i.e., high-throughput) materials research, such as catalysis research, that involves parallel apparatus for simultaneously effecting mechanical treatments such as grinding, mixing, pressing, crushing, sieving, and/or fraction... | 12/06/2005 |
| 6946096 | Use of powder metal sintering/diffusion bonding to enable applying silicon carbide or rhenium alloys to face seal rotors A method for making aerospace face seal rotors reinforced by rhenium metal, alloy, or composite in combination with silicon carbide or other ceramic. The resulting rotor also is disclosed. Ceramic grains, preferably silicon carbide (SiC), are mixed with powdered met... | 09/20/2005 |
| 6924394 | Low pressure process for the manufacture of 2-(aminomethyl)-1-cyclopentylamine Disclosed herein is a process for the manufacture of 2-(aminomethyl)-1-cyclopentylamine by low-pressure hydrogenation of 1-amino-2-cyano-1-cyclopentene using a combination catalyst system of nickel with palladium on carbon, or a single palladium-doped Raney-type cat... | 08/02/2005 |
| 6794331 | Raney copper Raney copper which is doped with at least one metal from the group comprising iron and/or noble metals is used as a catalyst in the dehydrogenation of alcohols. ... | 09/21/2004 |
| 6747180 | Metal catalysts Metal catalysts comprising hollow forms or spheres are made of metal alloy and optionally activated. The metal catalysts can be used for the hydrogenation, dehydrogenation, isomerization reductive alkylation, reductive amination, and/or hydration reaction of organic... | 06/08/2004 |
| 6677486 | Hydrogenation of nitriles over Raney catalysts Nitriles are hydrogenated to primary amines over an activated, alpha-Al2 O3 -containing, macroporous Raney catalyst based on an alloy of aluminum and at least one transition metal selected from the group consisting of iron, cobalt an... | 01/13/2004 |
| 6624204 | Carbon monoxide hydrogenation process A method is disclosed for renewing the activity of a Dispersed Active Metal (DAM) catalyst during operation of a reactor wherein the hydrogenation of carbon monoxide to produce a mixture of hydrocarbons is being carried out comprising withdrawing a mixtur... | 09/23/2003 |
| 6573213 | Metal catalysts Metal catalysts comprising hollow forms or spheres are made of metal alloy and optionally activated. The metal catalysts can be used for the hydrogenation, dehydrogenation, isomerization reductive alkylation, reductive amination, and/or hydration reaction... | 06/03/2003 |
| 6541663 | Process for preparation of aminocarboxylic acids Raney copper, which is doped (promoted) with an effective quantity of a doping (promoting) agent selected from the group boric acid, onium fluorides, salts of fluorine complex anions, and heteropoly acids, represents an outstanding oxidation catalyst for ... | 04/01/2003 |
| 6521564 | Modification of a hydrogenation catalyst A process for the modification of a hydrogenation catalyst of the Raney nickel, Raney cobalt, nickel-on-carrier or cobalt-on-carrier type, which process includes treating the hydrogenation catalyst at temperatures of about 0° C. to about 120° C. with ca... | 02/18/2003 |
| 6518449 | Method for regenerating a hydrogenation catalyst, method for hydrogenating compounds comprising nitrile functions The invention concerns a method for regenerating a hydrogenation catalyst, and hydrogenation methods carried out with a catalyst comprising at least one regenerated catalyst. More particularly, it concerns a method for regenerating Raney catalysts used in... | 02/11/2003 |
| 6489521 | Fixed bed catalysts In the overall methods of hydrogenating esters and maleic anhydride, which methods comprise a hydration reaction, comprising conducting the hydration reaction in the presence of the shaped Raney metal fixed-bed catalysts of the invention.... | 12/03/2002 |
| 6414201 | Raney catalyst, process for producing it and process for producing a sugar-alcohol using the same To obtain a Raney catalyst for fixed bed permitting a continuous use with a high initial activity and to produce a high purity sugar-alcohol at a low cost using the same. For this object, sugar-alcohol is produced by: using the powder type Raney catalyst ... | 07/02/2002 |
| 6395403 | 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 ... | 05/28/2002 |
| 6395934 | Raney nickel catalysts, a method for producing said raney nickel catalysts and the use of the same for hydrogenating organic compounds Raney nickel catalysts obtainable by a process in which the melt of an alloy comprising 50 to 94 wt. % aluminum, 10 to 50 wt. % nickel, 0 to 20 wt. % iron, 0 to 15 wt. % cerium, cerium mixed metal, vanadium, niobium, tantalum, chromium, molybdenum or mang... | 05/28/2002 |
| 6368996 | Hydrogenation catalyst and its preparation An amorphous alloy catalyst for hydrogenation and its preparation method are disclosed herein. The catalyst essentially consists of nickel ranging between 60 and 98 wt %, iron ranging between 0 and 20 wt %, one doping metal element selected from the group... | 04/09/2002 |
| 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 |
| 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 |
