Of Copper Patents (Class 502/244)
-
Patent number: 8101539Abstract: A purifying catalyst includes catalyst powder composed of a transition metal oxide of which an average particle diameter is within 1 nm to 2 ?m and in which an electron binding energy of oxygen is shifted to an energy side lower than 531.3 eV. The purifying catalyst shows good purification performance even when noble metal is not contained as an essential component.Type: GrantFiled: November 20, 2008Date of Patent: January 24, 2012Assignee: Nissan Motor Co., Ltd.Inventors: Hirofumi Yasuda, Yasunari Hanaki, Toru Sekiba, Shigeru Chida, Junji Ito
-
Patent number: 8088883Abstract: A transition metal complex obtained by contacting a bipyridine compound represented by the formula (1): wherein R1, R2 and R3 represent a C1-C10 alkyl group which may be substituted, etc., and R4 and R5 represent a hydrogen atom etc., with a compound of a transition metal belonging to Group 9, 10 or 11, and a process for producing a conjugated aromatic compound comprising reacting an aromatic compound (A) wherein one or two leaving groups are bonded to an aromatic ring with an aromatic compound (A) having the same structure as that of the above-mentioned aromatic compound (A) or an aromatic compound (B) being structurally different from the above-mentioned aromatic compound (A) and having one or two leaving groups bonded to an aromatic ring, in the presence of said transition metal complex.Type: GrantFiled: July 25, 2008Date of Patent: January 3, 2012Assignee: Sumitomo Chemical Company, LimitedInventors: Taku Asaumi, Takashi Kamikawa
-
Publication number: 20110313188Abstract: The present invention relates to a catalyst comprising one or more elements selected from the group consisting of cobalt, nickel and copper, said catalyst being present in the form of a structured monolith, wherein said catalyst comprises one or more elements selected from the group of the alkali metals, alkaline earth metals and rare earth metals. The invention further relates to processes for preparing the inventive catalyst and to the use of the inventive catalyst in a process for hydrogenating organic substances, especially for hydrogenating nitriles.Type: ApplicationFiled: February 4, 2010Publication date: December 22, 2011Applicant: BASF SEInventors: Christof Wilhelm Wigbers, Jochen Steiner, Martin Ernst, Bram Willem Hoffer, Ekkehard Schwab, Johann-Peter Melder
-
Publication number: 20110301022Abstract: There is provided by the present invention a process for preparing a copper-based catalyst having good catalytic activity, markedly excellent durability and good reproducibility. The process for preparing a copper-based catalyst of the invention is a process for preparing a catalyst composed of metal oxides containing copper oxide as an essential component and is characterized by comprising the following steps: (1) a step of bringing an acidic metal salt solution containing copper and a precipitant solution into contact with each other to obtain a slurry solution containing a precipitate of a catalyst precursor, and (2) a step of continuously bringing the slurry solution and a wash liquid into contact with each other to wash the precipitate, with substantially keeping the suspended state.Type: ApplicationFiled: February 15, 2010Publication date: December 8, 2011Applicant: MITSUI CHEMICALS, INC.Inventors: Masami Murakami, Ken Maeda, Yuya Goto
-
Patent number: 8071655Abstract: A catalyst applicable to the synthesis gas conversions especially E-T slurry processes, said catalyst comprising: a) a support containing at least a first aluminate element of mixed spinel structure of formula MxM?(1?x)Al2O4/Al2O3.SiO2, x ranging between and excluding 0 and 1, or of simple spinel structure of formula MAl2O4/Al2O3.SiO2, said support being calcined in an at least partly oxidizing atmosphere, at a temperature ranging between 850° C. and 900° C., and b) an active phase deposited on said support, which contains one or more group VIII metals, selected from among cobalt, nickel, ruthenium or iron. Said catalyst is used in a fixed bed or suspended in a three-phase reactor for hydrocarbon synthesis from a CO, H2 mixture.Type: GrantFiled: November 17, 2005Date of Patent: December 6, 2011Assignees: IFP Energies Nouvelles, ENI S.p.A.Inventors: Fabrice Diehl, François Hugues, Marie-Claire Marion, Denis Uzio
-
Publication number: 20110274602Abstract: Novel metal-containing silicates, in particular redox-active as well as crystalline silicates, a process for preparing metal-containing crystalline silicates, as well as use thereof as high-temperature oxidation catalyst or diesel oxidation catalyst. Further, a catalytic composition and a shaped catalyst body which contains the metal-containing crystalline silicates.Type: ApplicationFiled: November 13, 2009Publication date: November 10, 2011Inventor: Klaus Wanninger
-
Publication number: 20110257443Abstract: A catalyst comprising a first metal, a silicaceous support, and at least one metasilicate support modifier, wherein at least 1 wt. % of the at least one metasilicate support modifier is crystalline in phase, as determined by x-ray diffraction. The invention also relates to processes for forming such catalysts, to supports used therein, and to processes for hydrogenating acetic acid in the presence of such catalysts.Type: ApplicationFiled: February 1, 2011Publication date: October 20, 2011Applicant: CELANESE INTERNATIONAL CORPORATIONInventors: Heiko Weiner, Victor J. Johnston
-
Publication number: 20110236302Abstract: According to one embodiment, there is provided a catalyst including a first structure including a metal oxide substrate having a pore, and a fine particle including Cu as a main component supported on an inner surface of the substrate facing the pore, and a second structure formed on the outer surface of the first structure and including Cu as a main component. The second structure is formed into a needle with a tip thereof oriented outward from the first structure.Type: ApplicationFiled: September 23, 2010Publication date: September 29, 2011Inventors: Yoshio Hanakata, Takayuki Fukasawa, Naoki Shutoh
-
Publication number: 20110172085Abstract: A nanocrystalline supported or unsupported copper oxide with a residual carbon content of <10% and a BET surface area >95 m2/g. Further, a method for the production of a supported or unsupported nanocrystalline copper oxide as well as the use thereof in catalysis, in particular in the steam reforming of methanol or in the hydrogenation of esters.Type: ApplicationFiled: May 29, 2009Publication date: July 14, 2011Applicant: Süd-Chemie AGInventors: Hans-Jörg Wölk, Alfred Hagemeyer, Frank Großmann, Oliver Wegner
-
Publication number: 20110136658Abstract: A catalyst used in the reaction of oxidative bromination of methane is provided. The catalyst is prepared by the following procedures: mixing at least one of the precursors selected from the compounds of Rh, Ru, Cu, Zn, Ag, Ce, V, W, Cd, Mo, Mn, Cr and La which can dissolve in water with the Si precursor, hydrolyzing, drying and sintering. In the catalysis system, methane reacts with HBr, H2O and oxygen source (O2, air or oxygen-rich air), finally CH3Br and CH2Br2 are produced. Another catalyst used in the reaction of condensation of methane bromide to C3-C13 hydrocarbons is also provided. This catalyst is prepared by supporting compounds of Zn or Mg on molecular sieves such as HZSM-5, HY, Hb, 3A, 4A, 5A or 13X et al. With this catalyst, CH3Br and CH2Br2 produced in the former process can react further to give C3 to C13 hydrocarbons and HBr, and HBr can be recycled as a medium.Type: ApplicationFiled: April 14, 2008Publication date: June 9, 2011Inventors: Zhen Liu, Hongmin Zhang, Wensheng Li, Yanqun Ren, Xiaoping Zhou
-
Patent number: 7943108Abstract: Processes for purifying silicon tetrafluoride source gas by subjecting the source gas to one or more purification processes including: contacting the silicon tetrafluoride source gas with an ion exchange resin to remove acidic contaminants, contacting the silicon tetrafluoride source gas with a catalyst to remove carbon monoxide, by removal of carbon dioxide by use of an absorption liquid, and by removal of inert compounds by cryogenic distillation; catalysts suitable for removal of carbon monoxide from silicon tetrafluoride source gas and processes for producing such catalysts.Type: GrantFiled: September 11, 2008Date of Patent: May 17, 2011Assignee: MEMC Electronic Materials, Inc.Inventors: Vithal Revankar, Jameel Ibrahim
-
Patent number: 7932205Abstract: The invention relates to a process for the preparation of a catalyst comprising: a) The preparation of a colloidal oxide suspension of a first metal M1 that consists in the neutralization of a basic solution by an acidic mineral solution that contains the precursor of the metal M1, b) Bringing into contact the precursor of the promoter M2, either directly in its crystallized form or after dissolution in aqueous phase, with the colloidal suspension that is obtained in stage a), c) Bringing into contact the colloidal suspension that is obtained in stage b) with the substrate, d) Drying at a temperature of between 30° C. and 200° C., under a flow of air. The invention also relates to a process for the treatment of an olefinic fraction that uses the catalyst prepared [by] said preparation process.Type: GrantFiled: December 14, 2006Date of Patent: April 26, 2011Assignee: IFPInventors: Vincent Coupard, Denis Uzio, Carine Petit-Clair, Lars Fischer, Frederic Portejoie
-
Patent number: 7909986Abstract: Reduced emissions of gas phase reduced nitrogen species in the off gas of an FCC regenerator operated in a partial or incomplete mode of combustion is achieved by contacting the off gas with an oxidative catalyst/additive composition having the ability to reduce gas phase nitrogen species to molecular nitrogen and to oxidize CO under catalytic cracking conditions. The oxidative catalyst/additive composition is used in an amount less than the amount necessary to prevent afterburn. Fluidizable particles of the oxidative catalyst/additives are circulated throughout the partial or incomplete burn FCC unit along with the FCC catalyst inventory. The flue gas having a reduced content of gas phase reduced nitrogen species and NOx is passed to a downstream CO boiler, preferably a low NOx CO boiler. In the CO boiler, as CO is oxidized to CO2, a reduced amount of gas phase reduced nitrogen species is oxidized to NOx, thereby providing an increase in the overall reduction of NOx emitted into the environment.Type: GrantFiled: May 6, 2009Date of Patent: March 22, 2011Assignee: W. R. Grace & Co.-Conn.Inventors: George Yaluris, John Allen Rudesill
-
Patent number: 7906015Abstract: Reduced emissions of gas phase reduced nitrogen species in the off gas of an FCC regenerator operated in a partial or incomplete mode of combustion is achieved by contacting the off gas with an oxidative catalyst/additive composition having the ability to reduce gas phase nitrogen species to molecular nitrogen and to oxidize CO under catalytic cracking conditions. The oxidative catalyst/additive composition is used in an amount less than the amount necessary to prevent afterburn. Fluidizable particles of the oxidative catalyst/additives are circulated throughout the partial or incomplete burn FCC unit along with the FCC catalyst inventory. The flue gas having a reduced content of gas phase reduced nitrogen species and NOx is passed to a downstream CO boiler, preferably a low NOx CO boiler. In the CO boiler, as CO is oxidized to CO2, a reduced amount of gas phase reduced nitrogen species is oxidized to NOx, thereby providing an increase in the overall reduction of NOx emitted into the environment.Type: GrantFiled: September 29, 2005Date of Patent: March 15, 2011Assignee: W.R. Grace & Co.-Conn.Inventors: George Yaluris, John Allen Rudesill
-
Publication number: 20110058999Abstract: According to one embodiment, described herein is an exhaust gas after-treatment system that is coupleable in exhaust gas stream receiving communication with an internal combustion engine. The exhaust gas after-treatment system includes a low temperature SCR catalyst configured to reduce NOx in exhaust gas having a temperature below a temperature threshold. The system also includes a normal-to-high temperature SCR catalyst configured to reduce NOx in exhaust gas having a temperature above the temperature threshold.Type: ApplicationFiled: September 10, 2010Publication date: March 10, 2011Applicant: CUMMINS IP, INCInventors: Padmanabha Reddy Ettireddy, Matthew Henrichsen
-
Publication number: 20110060169Abstract: The invention relates to a hydrogenation catalyst which comprises a support material and at least one hydrogenation-active metal and in which the support material is based on titanium dioxide, zirconium dioxide, aluminium oxide, silicon oxide or mixed oxides thereof and the hydrogenation-active metal is at least one element from the group consisting of copper, cobalt, nickel, chromium, wherein the support material contains the element barium. The invention further relates to a process for preparing alcohols by hydrogenation of carbonyl compounds, in which the hydrogenation is carried out in the presence of such a hydrogenation catalyst.Type: ApplicationFiled: July 7, 2008Publication date: March 10, 2011Applicant: Evonik Oxeno GmbHInventors: Alfred Kaizik, Thomas Quandt, Hans-Gerd Lueken, Wilfried Bueschken
-
Patent number: 7902104Abstract: This invention relates to a solid divided composition comprising grains whose mean size is greater than 25 ?m and less than 2.5 mm, wherein each grain is provided with a solid porous core and a homogeneous continuous metal layer consisting of at least one type of transition non-oxidised metal and extending along a gangue coating the core in such a way that pores are inaccessible. A method for the production of said composition and for the use thereof in the form of a solid catalyst is also disclosed.Type: GrantFiled: June 21, 2005Date of Patent: March 8, 2011Assignees: Arkema France, Institut National Polytechnique de ToulouseInventors: Philippe Kalck, Philippe Serp, Massimiliano Corrias
-
Publication number: 20110053020Abstract: Nanostructured catalysts and related methods are described. The nanostructured catalysts have a hierarchical structure that facilitates modification of the catalysts for use in particular reactions. Methods for generating hydrogen from a hydrogen-containing molecular species using a nanostructured catalyst are described. The hydrogen gas may be collected and stored, or the hydrogen gas may be collected and consumed for the generation of energy. Thus, the methods may be used as part of the operation of an energy-consuming device or system, e.g., an engine or a fuel cell. Methods for storing hydrogen by using a nanostructured catalyst to react a dehydrogenated molecular species with hydrogen gas to form a hydrogen-containing molecular species are also described.Type: ApplicationFiled: November 7, 2008Publication date: March 3, 2011Applicants: WASHINGTON STATE UNIVERSITY RESEARCH FOUNDATION, IDAHO RESEARCH FOUNDATION, INC.Inventors: M. Grant Norton, David N. McIlroy
-
Publication number: 20100311575Abstract: An exhaust gas purifying catalyst includes: a composite oxide represented by: (Aa-w-xMwM?x) (Si6-yNy)O27-z. A is a cation of at least one of La and Pr; M is a cation of at least one of Ba, Ca, and Sr; M? is a cation of at least one of Nd, Y, Al, Pr, Ce, Sr, Li, and Ca; N is a cation of at least one of Fe, Cu, and Al. The following are satisfied: 6?a?10, 0<w<5, 0?x<5, 0<w+x?5, 0?y?3, 0?z?3, A?M?, and x?0 when A is a cation of La. A noble metal ingredient which forms a solid solution with the composite oxide or is supported on the composite oxide, and an exhaust gas purifying catalyst product formed of a carrier made of a ceramic or metallic material, and a layer of the exhaust gas purifying catalyst supported on the carrier.Type: ApplicationFiled: May 12, 2010Publication date: December 9, 2010Applicant: MITSUI MINING & SMELTING CO., LTD.Inventors: Takashi WAKABAYASHI, Yuunosuke NAKAHARA
-
Patent number: 7846867Abstract: A method for the production of a composition comprising a metal containing compound, a silica containing material, a promoter, and alumina is disclosed. The composition can then be utilized in a process for the removal of sulfur from a hydrocarbon stream.Type: GrantFiled: August 30, 2007Date of Patent: December 7, 2010Assignee: China Petroleum & Chemical CorporationInventors: Uday T. Turaga, Tushar V. Choudhary, Glenn W. Dodwell, Marvin M. Johnson, Deborah K. Just
-
Patent number: 7824656Abstract: The present invention relates to catalysts for the production of hydrogen using the water gas shift reaction and the carbon dioxide reforming of hydrocarbon-containing fuels. The catalysts nickel and/or copper on a ceria/zirconia support, where the support is prepared using a surfactant templating method. The invention also includes processes for producing hydrogen, reactors and hydrogen production systems utilizing these catalysts.Type: GrantFiled: March 14, 2006Date of Patent: November 2, 2010Assignee: University of ReginaInventors: Raphael Oyom Idem, Prashant Kumar, Yanping Sun
-
Patent number: 7772147Abstract: A solid catalyst carrier substrate coated with a surface area-enhancing washcoat composition including a catalytic component, a metal oxide and a refractory fibrous or whisker-like material having an aspect ratio of length to thickness in excess of 5:1.Type: GrantFiled: September 12, 2005Date of Patent: August 10, 2010Assignee: Johnson Matthey Public Limited CompanyInventors: Paul John Collier, Alison Mary Wagland
-
Publication number: 20100167053Abstract: The present invention relates to a catalyst composition for preparing carbon nanotube and a process for preparing carbon nanotube using the same. More particularly, this invention relates to a process for preparing carbon nanotube by the chemical vapor deposition method through the decomposition of lower saturated or unsaturated hydrocarbons using a multi-component metal catalyst composition containing active metal catalyst from Co, V, Al and inactive porous support. Further, the present invention affords the carbon nanotube having 5˜30 nm of diameter and 100˜10,000 of aspect ratio in a high catalytic yield.Type: ApplicationFiled: May 26, 2009Publication date: July 1, 2010Inventors: Hyun-Kyung Sung, Wan Sung Lee, Namsun Choi, Dong Hwan Kim, Youngchan Jang
-
Patent number: 7743738Abstract: The present invention relates to an apparatus and method for delivering tungsten into a fuel combustion system or to the exhaust therefrom. By the present invention, tungsten from the lubricant or the fuel will interact with combustion products and, in particular, phosphorus, sulfur, and/or lead from the combustion products. In this manner, the tungsten scavenges or inactivates harmful materials which have migrated into the fuel or combustion products, and which can otherwise poison catalytic converters, sensors and/or automotive on-board diagnostic devices The present invention can also lead to improved durability of exhaust after treatment systems. A lubricant in accordance with the present invention is also disclosed.Type: GrantFiled: March 1, 2007Date of Patent: June 29, 2010Assignee: Afton Chemical CorporationInventors: Dennis H. Rainear, Allen A. Aradi, Joseph W. Roos
-
Publication number: 20100113841Abstract: The present invention relates to a process for producing hydrogenolysis products of polyhydric alcohols with a good selectivity and a high yield, as well as hydrogenolysis catalysts used in the production process. The present invention provides (1) a process for producing a hydrogenolysis product of a polyhydric alcohol which includes the step of reacting the polyhydric alcohol with hydrogen in the presence of a catalyst containing a copper component, wherein the catalyst is a catalyst (A) containing the copper component, an iron component and an aluminum component, or a catalyst (B) containing the copper component and a silicon component; and (2) a hydrogenolysis catalyst for polyhydric alcohols which includes a copper component, an iron component and an aluminum component, and (3) a hydrogenolysis catalyst for polyhydric alcohols which includes a copper component and a silicon component.Type: ApplicationFiled: April 4, 2008Publication date: May 6, 2010Applicant: KAO CORPORATIONInventors: Nobuyoshi Suzuki, Masazumi Tamura, Yohei Yoshikawa, Taku Mimura, Masakatsu Takahashi
-
Publication number: 20100111796Abstract: Catalysts, methods of preparing catalyst, and methods for treating exhaust gas streams are described. In one or more embodiments, a catalyst system includes an upstream zone effective to catalyze the conversion of a mixture of NOx and NH3 to N2, and a downstream zone effective for the conversion of ammonia to N2 in the presence or absence of NOx. In an embodiment, a method for preparing a catalyst system includes: first coating one end of a substrate along at least 5% of its length with an undercoat washcoat layer containing a material composition effective to catalyze the removal of ammonia; second coating with an overcoat layer containing a material composition effective to catalyze the conversion of a mixture of NOx and NH3 to N2.Type: ApplicationFiled: November 3, 2008Publication date: May 6, 2010Applicant: BASF Catalysts LLCInventors: Matthew Tyler Caudle, Martin Dieterle, Scott E. Buzby
-
Publication number: 20100087312Abstract: Described is a method for the preparation of a chromium-free catalyst comprising Cu and at least one second metal in metallic or oxidic form, comprising the steps of a) preparing a final solution comprising ions of Cu and of at least one second metal, said final solution additionally comprising ions of a complexing agent and having a pH of above 5; b) contacting said final solution with inert carrier to form a final solution/carrier combination; c) optionally, drying the final solution/carrier combination; d) calcining the final solution/carrier combination obtained in step c) or d) to yield Cu and the at least one second metal in oxidic form; and e) reducing at least part of the thus obtained oxidic Cu on the carrier. Further, a catalyst obtainable by the said method as well as uses thereof are described.Type: ApplicationFiled: December 7, 2009Publication date: April 8, 2010Applicants: AVANTIUM INTERNATIONAL B.V., UNIVERSITI MALAYAInventors: André Harmen SIJPKES, Nelleke van der PUIL, Peter John van den BRINK, Sharifah Bee ABDUL HAMID, Adrianus Hendricus Joseph Franciscus de KEIJZER
-
Publication number: 20100016647Abstract: A catalyst for producing aromatic compounds from lower hydrocarbons while improving activity life stability of methane conversion rate; benzene formation rate; naphthalene formation rate; and total formation rate of benzene, toluene and xylene is formed by loading molybdenum and copper on metallo-silicate serving as a substrate and then calcining the metallo-silicate. When the catalyst is reacted with a reaction gas containing lower hydrocarbons and carbonic acid gas, aromatic compounds are produced. In order to obtain the catalyst, it is preferable that molybdenum and copper are loaded on zeolite formed of metallo-silicate after the zeolite is treated with a silane compound larger than a pore of the zeolite in diameter and having an amino group and a straight-chain hydrocarbon group, the amino group being able to selectively react with the zeolite at a Bronsted acid point of the zeolite. It is preferable that a loaded amount of molybdenum is within a range of from 2 to 12 wt.Type: ApplicationFiled: February 13, 2008Publication date: January 21, 2010Applicant: MEIDENSHA CORPORATIONInventors: Shinichi Yamada, Tomohiro Yamada, Yuji Ogawa, Hirokazu Akiyama, Takuya Hatagishi
-
Publication number: 20100009843Abstract: Processes for purifying silicon tetrafluoride source gas by subjecting the source gas to one or more purification processes including: contacting the silicon tetrafluoride source gas with an ion exchange resin to remove acidic contaminants, contacting the silicon tetrafluoride source gas with a catalyst to remove carbon monoxide, by removal of carbon dioxide by use of an absorption liquid, and by removal of inert compounds by cryogenic distillation; catalysts suitable for removal of carbon monoxide from silicon tetrafluoride source gas and processes for producing such catalysts.Type: ApplicationFiled: September 21, 2009Publication date: January 14, 2010Applicant: MEMC ELECTRONIC MATERIALS, INC.Inventors: Vithal Revankar, Jameel Ibrahim
-
Publication number: 20100009844Abstract: Processes for purifying silicon tetrafluoride source gas by subjecting the source gas to one or more purification processes including: contacting the silicon tetrafluoride source gas with an ion exchange resin to remove acidic contaminants, contacting the silicon tetrafluoride source gas with a catalyst to remove carbon monoxide, by removal of carbon dioxide by use of an absorption liquid, and by removal of inert compounds by cryogenic distillation; catalysts suitable for removal of carbon monoxide from silicon tetrafluoride source gas and processes for producing such catalysts.Type: ApplicationFiled: September 21, 2009Publication date: January 14, 2010Applicant: MEMC ELECTRONIC MATERIALS, INC.Inventors: Vithal Revankar, Jameel Ibrahim
-
Publication number: 20090325790Abstract: A metal-substituted mesoporous oxide framework, such as Co-MCM-41, are disclosed which includes more than one ion species with different reduction kinetics. The reducibility correlates strongly with the pore radius of curvature, with the metal ions incorporated in smaller pores more resistant to complete reduction. The metal-ion substituted oxide framework improves catalytic processes by controlling the size of the catalytic particles forming in the pores. The metal-substituted mesoporous oxide framework can be employed in selective hydrogenation of organic chemicals, in ammonia synthesis, and in automotive catalytic exhaust systems.Type: ApplicationFiled: June 17, 2005Publication date: December 31, 2009Applicant: Yale UniversityInventors: Gary L. Haller, Sangyun Lim, Dragos Ciuparu, Yuan Chen, Yanhui Yang, Lisa Pfefferle
-
Publication number: 20090325788Abstract: The present invention is related to single and/or multiple-wall carbon nanotubes which may contain interstitial metals obtainable by a preparation process, comprising a catalytic step using a catalytic system, said catalytic system comprising a catalyst and a support, said support comprising hydroxides and/or carbonates or mixtures thereof with or without metal oxides. The present invention is also related to carbon fibers obtainable by said preparation process. The present invention also pertains in particular to said catalytic system and to said preparation process. Another aspect concerns the use of the nanotubes and of the catalytic system according to the invention.Type: ApplicationFiled: July 20, 2009Publication date: December 31, 2009Applicant: FACULTES UNIVERSITAIRES NOTRE-DAME DE LA PAIXInventors: Janos B. Nagy, Narasimaiah Nagaraju, Isabelle Willems, Antonio Fonseca
-
Publication number: 20090298682Abstract: Oxychlorination catalyst compositions which include a catalytically effective amount of an oxychlorination catalyst and a diluent having certain chemical composition and/or physical properties are disclosed. Processes using such oxychlorination catalyst compositions are also described. Some oxychlorination catalyst compositions and processes disclosed herein can increase the optimal operating temperature, and thereby increase the production capacity of an existing reactor, such as a fluid-bed reactor, compared to other oxychlorination catalyst compositions.Type: ApplicationFiled: August 10, 2009Publication date: December 3, 2009Applicant: Oxy Vinyls, LPInventors: Keith S. Kramer, Joseph A. Cowfer
-
Publication number: 20090269269Abstract: The disclosed subject matter provides a copper oxide nanoparticle, a catalyst that includes the copper oxide nanoparticle, and methods of manufacturing and using the same. The catalyst can be used to catalyze a chemical reaction (e.g., oxidizing carbon monoxide (CO) to carbon dioxide (CO2)).Type: ApplicationFiled: October 14, 2008Publication date: October 29, 2009Applicant: The Trustees of Columbia University in City of New YorkInventors: Brian Edward White, Stephen O'Brien
-
Patent number: 7595276Abstract: The present invention provides a catalytic composition for oxychlorination excellent in the fluidity, the capability of suppressing lowering of the fluidity, and the attrition resistance as well as in the selectivity for EDC and the capability of suppressing combustion of ethylene. The catalytic composition for oxychlorination contains silica alumina particles in the range from 5 to 40 wt % when expressed as an oxide thereof, copper in the range from 5 to 20 wt % when expressed as an oxide thereof (CuO), and alumina as a carrier in the range from 40 to 90 wt % when expressed as that of Al2O3. The silica alumina particles are prepared by coating silica particles with alumina, and have the average particle diameter in the range from 3 to 100 nm. A content of alumina in the silica alumina particles is in the range from 0.1 to 10 wt %.Type: GrantFiled: July 29, 2008Date of Patent: September 29, 2009Assignee: JGC Catalysts and Chemicals Ltd.Inventors: Takashi Kodama, Tsuguo Koyanagi
-
Patent number: 7592290Abstract: The invention relates to supported catalysts and a process for the production of these catalysts. These supported catalysts may be used in various reactions such as reforming reactions (e.g. steam methane reforming (SMR) reactions and autothermal reforming (ATR) reactions). In one aspect of the invention, the supported catalyst comprises a transition metal oxide; optionally a rare-earth metal oxide; and a transition metal aluminate.Type: GrantFiled: April 7, 2005Date of Patent: September 22, 2009Assignee: Sulzer Metco(Canada) Inc.Inventors: Syed Tajammul Hussain, Eugene Stelmack
-
Patent number: 7585806Abstract: Oxychlorination catalyst compositions which include a catalytically effective amount of an oxychlorination catalyst and a diluent having certain chemical composition and/or physical properties are disclosed. Processes using such oxychlorination catalyst compositions are also described. Some oxychlorination catalyst compositions and processes disclosed herein can increase the optimal operating temperature, and thereby increase the production capacity of an existing reactor, such as a fluid-bed reactor, compared to other oxychlorination catalyst compositions.Type: GrantFiled: November 10, 2006Date of Patent: September 8, 2009Assignee: Oxy Vinyls, LPInventors: Keith S. Kramer, Joseph A. Cowfer
-
Publication number: 20090196812Abstract: Catalysts comprising metal-loaded non-zeolitic molecular sieves having the CHA crystal structure, including Cu-SAPO-34, methods for preparing such catalysts, and systems and methods for treating exhaust gas incorporating such catalysts are disclosed. The catalysts can be used to remove nitrogen oxides from a gaseous medium across a broad temperature range and exhibit hydrothermal stability at high reaction temperatures.Type: ApplicationFiled: January 29, 2009Publication date: August 6, 2009Applicant: BASF Catalysts LLCInventors: Ivor Bull, Gerald S. Koermer, Ahmad Moini, Signe Unverricht
-
Patent number: 7566393Abstract: Compounds and methods for sorbing organosulfur compounds from fluids are provided. Generally, compounds according to the present invention comprise mesoporous, nanocrystalline metal oxides. Preferred metal oxide compounds either exhibit soft Lewis acid properties or are impregnated with a material exhibiting soft Lewis acid properties. Methods according to the invention comprise contacting a fluid containing organosulfur contaminants with a mesoporous, nanocrystalline metal oxide. In a preferred embodiment, nanocrystalline metal oxide particles are formed into pellets (14) and placed inside a fuel filter housing (12) for removing organosulfur contaminants from a hydrocarbon fuel stream.Type: GrantFiled: April 26, 2005Date of Patent: July 28, 2009Assignee: NanoScale CorporationInventors: Kenneth Klabunde, Bill R. Sanford, P. Jeevanandam
-
Publication number: 20090126300Abstract: After newly attaching an interior-finishing vinyl wall covering onto at least one of a wall, floor and ceiling of a building, or after completion of washing/renovation of the vinyl wall covering, a liquid or slurry coating material containing a titanium oxide, a layered silicate mineral, and a silver ion and/or a copper ion, is sprayed or applied onto a surface of the vinyl wall covering. Subsequently the coating material is naturally dried to form a thin transparent coating layer. In a process of renovating the vinyl wall covering, the coating layer is removed by washing with water or wiping with water to completely remove various stains. The present invention makes it possible to allow any worker, i.e., even an unskilled worker, to fully renovate an interior-finishing material, such as a vinyl wall covering, without difficulty and at low cost.Type: ApplicationFiled: October 26, 2005Publication date: May 21, 2009Inventors: Misuo Fujiwara, Katsunori Kubota
-
Patent number: 7518023Abstract: The invention relates to highly active spherical metal support catalysts with a metal content of 10 to 70% by mass, and a process for their production with the use of a mixture of polysaccharides and at least one metal compound which is dropped into a metal salt solution.Type: GrantFiled: December 14, 2006Date of Patent: April 14, 2009Assignee: Shell Internationale Research Maatschappij, B.V.Inventors: Reinhard Geyer, Rainer Schödel, Peter Birke, Jürgen Hunold
-
Publication number: 20090092534Abstract: Processes for purifying silicon tetrafluoride source gas by subjecting the source gas to one or more purification processes including: contacting the silicon tetrafluoride source gas with an ion exchange resin to remove acidic contaminants, contacting the silicon tetrafluoride source gas with a catalyst to remove carbon monoxide, by removal of carbon dioxide by use of an absorption liquid, and by removal of inert compounds by cryogenic distillation; catalysts suitable for removal of carbon monoxide from silicon tetrafluoride source gas and processes for producing such catalysts.Type: ApplicationFiled: September 11, 2008Publication date: April 9, 2009Applicant: MEMC Electronic Materials, Inc.Inventors: Vithal Revankar, Jameel Ibrahim
-
Publication number: 20090078157Abstract: The invention is directed to a synthetic inorganic material, comprising inorganic compounds based on elementary particles with a sheet (phyllosilicate) structure, the elementary particles consisting of a central layer of octahedrally coordinated divalent metal ions between two layers of tetrahedrally surrounded silicon ions, which particles are substantially free of aluminum, free silica and salts and hydroxides of the divalent metal ions, the material not containing any metal ions that can be reduced to the corresponding metals at temperatures of 700° C. or less.Type: ApplicationFiled: May 1, 2006Publication date: March 26, 2009Applicant: Eurosupport B.V.Inventors: John Wihelm Geus, Jacobus Berend Dirksen
-
Patent number: 7491675Abstract: Nanocomposite copper-ceria catalysts are provided, which comprise copper oxide nanoparticles, copper nanoparticles, or a mixture thereof combined with ceria nanoparticles. Methods for making such catalysts are also provided, which involve the steps of (i) combining ceria nanoparticles in an aqueous suspension with copper 2,4-pentanedionate to form a slurry; (ii) heating the slurry formed in step (i) under an inert gas atmosphere or an oxygen-argon atmosphere, at a temperature and for a time sufficient to cause decomposition of the copper 2,4-pentanedionate to form copper nanoparticles and/or copper oxide nanoparticles that are combined with the ceria nanoparticles; and (iii) optionally, subjecting the product formed in step (ii) to a heat treatment process under conditions effective to convert at least some of the copper nanoparticles to copper oxide nanoparticles.Type: GrantFiled: September 28, 2004Date of Patent: February 17, 2009Assignee: Philip Morris USA Inc.Inventors: Sarojini Deevi, Sohini PalDey
-
Publication number: 20090036299Abstract: The present invention provides a catalytic composition for oxychlorination excellent in the fluidity, the capability of suppressing lowering of the fluidity, and the attrition resistance as well as in the selectivity for EDC and the capability of suppressing combustion of ethylene. The catalytic composition for oxychlorination contains silica alumina particles in the range from 5 to 40 wt % when expressed as an oxide thereof, copper in the range from 5 to 20 wt % when expressed as an oxide thereof (CuO), and alumina as a carrier in the range from 40 to 90 wt % when expressed as that of Al2O3. The silica alumina particles are prepared by coating silica particles with alumina, and have the average particle diameter in the range from 3 to 100 nm. A content of alumina in the silica alumina particles is in the range from 0.1 to 10 wt %.Type: ApplicationFiled: July 29, 2008Publication date: February 5, 2009Applicant: JGC CATALYSTS AND CHEMICALS LTD.Inventors: Takashi Kodama, Tsuguo Koyanagi
-
Patent number: 7476639Abstract: The invention relates to a method for the production of catalytically active layer silicates with one or more intermediate layers, especially Al and/or Ti-pillared clays, wherein a metal solution is added to the layer silicate and the mixture is dried, thereby producing metal atom columns supporting the corresponding intermediate layer. A metal salt is admixed dry to the resulting dry substance. The ensuing dry mixture is finally heated so that the metal atoms or the transition metal atoms become deposited in the intermediate layer.Type: GrantFiled: September 29, 2003Date of Patent: January 13, 2009Assignee: Iko Minerals GmbHInventors: Dietrich Koch, Kisnaduth Kesore, Anthony Arthur Gustaf Tomlinson
-
Publication number: 20090011925Abstract: A catalytically active glass-ceramic and method for producing a catalytically active multi-phase glass-ceramic in which at least one catalyst precursor is mixed with a glass-ceramic precursor formulation to form a catalyst precursor/glass-ceramic precursor mixture. The catalyst precursor/glass-ceramic precursor mixture is then melted to form an amorphous glass material which, in turn, is devitrified to form a polycrystalline ceramic. The polycrystalline ceramic is then activated, forming a catalytically active multi-phase glass-ceramic.Type: ApplicationFiled: July 6, 2007Publication date: January 8, 2009Inventors: Larry Gordon Felix, David Morrissey Rue, Thomas Philip Seward, III, Logan Edwin Weast
-
Publication number: 20080318765Abstract: There is disclosed a composition comprising an alloy represented by the following generic formula Aa)n(Bb)n(Cc)n(Dd)n(ee)n( . . . )n; wherein A is an oxygen storage agent; B is an anti-sintering agent; C is an oxidation catalyst; D is a reduction catalyst; and E is a NOx absorbing agent; wherein each subscript letter represents compositional stoichiometry; wherein n is greater than or equal to zero; wherein the sum of the n's is equal to or greater than 2, and wherein the alloy comprises at least two different metals. There is also disclosed a washcoat composition; a catalyst support; methods of making the alloy, the washcoat composition, and the catalyst support.Type: ApplicationFiled: June 19, 2007Publication date: December 25, 2008Inventors: Allen A. Aradi, C. S. Warren Huang
-
Publication number: 20080311291Abstract: Process for the production of doped metal oxide particles, wherein the doping component is present on the surface in the form of domains, wherein in a first reaction zone, an oxidizable and/or - hydrolysable metal compound as dopant together with an atomization gas is atomised into a flow of metal oxide particles in a carrier gas, wherein the mass flow of the metal oxide particles und - the mass flow of the dopant are selected such that the doped metal oxide particles contain 10 ppm to 10 wt.Type: ApplicationFiled: October 10, 2006Publication date: December 18, 2008Applicant: EVONIK DEGUSSA GmbhInventors: Kai Schumacher, Rainer Golchert, Helmut Roth, Harald Alff, Matthias Rochnia
-
Patent number: 7462576Abstract: The present invention provides combustion catalysts that have high exhaust gas-purifying activity and are less expensive than conventional ones. The catalysts include: (1) A calcium salt, amorphous silica, and a copper compound, (2) Amorphous silica, and a copper compound, (3) (1) At least one of crystalline silica and amorphous silica, (2) a calcium salt, and (3) a copper oxide, and (4) (1) At least one of crystalline silica and amorphous silica, and (2) a copper oxide.Type: GrantFiled: April 19, 2004Date of Patent: December 9, 2008Assignees: Honda Giken Kogyo Kabushiki Kaisha, Japan Insulation Co., LtdInventors: Masao Ishida, Tadahisa Masatani, Miyako Koga, Kazuo Shibahara, Kenichi Tsuge