Of Group V (i.e., V, Nb, Ta, As, Sb Or Bi) Patents (Class 502/353)
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Patent number: 7722845Abstract: Catalysts, methods, and systems for treating diesel engine exhaust streams are described. In one or more embodiments, the catalyst comprises platinum, a second metal from one of the groups VB, VIB, VIIB, VIIIB, IB, or IIB of the periodic table, a refractory metal oxide, and a zeolite, the oxidation catalyst already being effective to remove ammonia at temperatures less than about 300° C. and exhibiting no significant decrease in ammonia oxidation efficiency upon hydrothermal aging. A method aspect includes first passing a vehicle's engine exhaust stream through a NOx abatement catalyst; and passing the exhaust stream exiting the NOx abatement catalyst and containing ammonia through the ammonia oxidation catalyst. Systems including such catalysts are also provided.Type: GrantFiled: February 27, 2008Date of Patent: May 25, 2010Assignee: Basf CorporationInventors: Matthew T. Caudle, Martin Deiterle, Stanley A. Roth, Wen-Mei Xue
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Publication number: 20100120610Abstract: A photocatalytic device for reacting with volatile organic compounds includes a photocatalyst and at least one additive, such as hafnium oxide and zirconium oxide, that is capable of forming a stable silicate with silicon dioxide. The additive reacts with volatile silicon-containing compounds to form stable silicate compounds. As a result, the silicon-containing compounds are unavailable for deactivation of the photocatalyst.Type: ApplicationFiled: January 15, 2010Publication date: May 13, 2010Applicant: CARRIER CORPORATIONInventors: Wayde R. Schmidt, Treese Campbell-Hugener, Tania Bhatia
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Patent number: 7713907Abstract: The invention provides a method for depositing catalytic clusters on a surface, the method comprising confining the surface to a controlled atmosphere; contacting the surface with catalyst containing vapor for a first period of time; removing the vapor from the controlled atmosphere; and contacting the surface with a reducing agent for a second period of time so as to produce catalyst-containing nucleation sites.Type: GrantFiled: March 5, 2007Date of Patent: May 11, 2010Assignee: UChicago Argonne, LLCInventors: Jeffrey W. Elam, Michael J. Pellin, Peter C. Stair
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Patent number: 7713908Abstract: A method of producing a porous composite metal oxide comprising the steps of: dispersing first metal oxide powder, which is an aggregate of primary particles each with a diameter of not larger than 50 nm, in a dispersion medium by use of microbeads each with a diameter of not larger than 150 ?m, thus obtaining first metal oxide particles, which are 1 nm to 50 nm in average particle diameter, and not less than 80% by mass of which are not larger than 75 nm in diameter; dispersing and mixing up, in a dispersion medium, the first metal oxide particles and second metal oxide powder, which is an aggregate of primary particles each with a diameter of not larger than 50 nm, and which is not larger than 200 nm in average particle diameter, thus obtaining a homogeneously-dispersed solution in which the first metal oxide particles and second metal oxide particles are homogeneously dispersed; and drying the homogeneously-dispersed solution, thus obtaining a porous composite metal oxide.Type: GrantFiled: August 29, 2005Date of Patent: May 11, 2010Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Toshio Yamamoto, Akihiko Suda, Akira Morikawa, Kae Yamamura, Hirotaka Yonekura
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Patent number: 7713910Abstract: The present invention provides a method for manufacture of supported noble metal based alloy catalysts with a high degree of alloying and a small crystallite size. The method is based on the use of polyol solvents as reaction medium and comprises of a two-step reduction process in the presence of a support material. In the first step, the first metal (M1=transition metal; e.g. Co, Cr, Ru) is activated by increasing the reaction temperature to 80 to 160° C. In the second step, the second metal (M2=noble metal; e.g. Pt, Pd, Au and mixtures thereof) is added and the slurry is heated to the boiling point of the polyol solvent in a range of 160 to 300° C. Due to this two-step method, an uniform reduction occurs, resulting in noble metal based catalysts with a high degree of alloying and a small crystallite size of less than 3 nm. Due to the high degree of alloying, the lattice constants are lowered.Type: GrantFiled: October 29, 2004Date of Patent: May 11, 2010Assignee: Umicore AG & Co KGInventors: Dan V. Goia, Marco Lopez, Tapan Kumar Sau, Mihaela-Ortansa Jitianu
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Patent number: 7709412Abstract: The invention relates to a bulk metal hydrotreating catalyst, suitable for the production of low sulfur diesel fuels, said bulk metal hydrotreating catalyst being in the oxide state and having a composition of MoxCoyNbz, excluding the oxygen, wherein x, y, and z represent about 0.1 to about 2 moles of Mo, about 0.5 to about 2 moles of Co, and about 0.1 to about 2 moles Nb and wherein Nb is present in amounts from about 2 to about 45 wt. %, Mo is present in amounts from about 1 to about 50 wt. %, and Co is present in amounts from about 10 to about 45 wt. %.Type: GrantFiled: April 1, 2005Date of Patent: May 4, 2010Assignee: ExxonMobil Research & Engineering CompanyInventors: Stuart S. Shih, Stuart L. Soled, Sabato Miseo
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Patent number: 7709541Abstract: An improved skeletal iron catalyst is provided for use in Fischer-Tropsch synthesis reactions for converting CO and H2 to hydrocarbon products. The skeletal iron catalyst is manufactured using iron and a removable non-ferrous component such as aluminum. The iron and removable non-ferrous component are mixed together to form a precursor catalyst and then a portion of the removable non-ferrous component is removed to leave a skeletal iron catalyst. One or more first promoter metals and optionally one or more second promoter metals are incorporated into the skeletal iron catalyst either by blending the promoter into the precursor catalyst during the formation thereof or by depositing the promoter on the skeletal iron. The first promoter metals comprises a metal selected from the group consisting of titanium, zirconium, vanadium, cobalt, molybdenum, tungsten, and platinum-group metals.Type: GrantFiled: July 14, 2006Date of Patent: May 4, 2010Assignee: Headwaters Technology Innovation, LLCInventors: Yijun Lu, Zhihua Wu, Zhenhua Zhou, Bing Zhou
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Patent number: 7704474Abstract: The invention relates to a method for the catalytic decomposition of N2O in a gas containing N2O in the presence of a catalyst, wherein the catalyst comprises a zeolite that has been loaded with a first metal selected from the group of noble metals consisting of ruthenium, rhodium, silver, rhenium, osmium, iridium, platinum and gold, and with a second metal selected from the group of transition metals consisting of chromium, manganese, iron cobalt, nickel and copper, and wherein the loading of the zeolite with metals has been obtained by first loading the zeolite with the noble metal and then with the transition metal, as well as a catalyst for this method and a method for the preparation of this catalyst.Type: GrantFiled: May 17, 2005Date of Patent: April 27, 2010Assignee: Stichting Energieonderzoek Centrum NederlandInventors: Johannis Alouisius Zacharias Pieterse, Rudolf Willem Van Den Brink
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Publication number: 20100096618Abstract: A catalyst particle for use in growth of elongated nanostructures, such as e.g. nanowires, is provided. The catalyst particle comprises a catalyst compound for catalyzing growth of an elongated nanostructure comprising a nanostructure material without substantially dissolving in the nanostructure material and at least one dopant element for doping the elongated nanostructure during growth by substantially completely dissolving in the nanostructure material. A method for forming an elongated nanostructure, e.g. nanowire, on a substrate using the catalyst particle is also provided. The method allows controlling dopant concentration in the elongated nanostructures, e.g. nanowires, and allows elongated nanostructures with a low dopant concentration of lower than 1017 atoms/cm3 to be obtained.Type: ApplicationFiled: December 19, 2007Publication date: April 22, 2010Applicant: Interuniversitair Microelektronica Centrum (IMEC)Inventors: Francesca Iacopi, Philippe M. Vereecken
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Publication number: 20100099012Abstract: Transition metal nanostructures coated with a contiguous, conformal submonolayer-to-multilayer noble metal film and their method of manufacture are described. The manufacturing process involves the initial formation of suitably sized transition metal or alloy nanostructures which may be nanorods, nanobars, or nanowires. A monolayer of a non-noble metal is deposited onto the surface of the nanostructures by underpotential deposition. This is followed by the galvanic displacement of the non-noble metal by a second metal to yield a conformal coating of a monolayer of the second metal on the surface of the nanostructures. The replacement of atoms of the first metal by atoms of the second metal is an irreversible and spontaneous redox reaction which involves the replacement of a non noble metal by a more noble metal. The process can be controlled and repeated to obtain the desired film coverage.Type: ApplicationFiled: October 19, 2009Publication date: April 22, 2010Applicant: Brookhaven Science Associates, LLCInventor: Radoslav Adzic
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Patent number: 7696119Abstract: A process for producing various organic carbonates by performing transesterification and disproportionation reactions in dual vapor/liquid phase mode preferably in the presence of solid catalyst composition selected from the group consisting of oxides, hydroxides, oxyhydroxides or alkoxides of two to four elements from Group IV, V and VI of the Periodic Table supported on porous material which has surface hydroxyl groups and the method of reactivating catalyst deactivated by polymer deposition by contacting the deactivated catalyst with a solution of hydroxy containing compound in a solvent such as benzene or THF.Type: GrantFiled: December 14, 2007Date of Patent: April 13, 2010Assignee: Catalytic Distillation TechnologiesInventor: J. Yong Ryu
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Patent number: 7691777Abstract: An oxidation catalyst for purifying an exhaust gas, which can provide an excellent catalyst activity at lower temperatures for particulates and high boiling point hydrocarbons in an exhaust gas of an internal combustion engine, is provided. The oxidation catalyst for purifying an exhaust gas is composed of a composite metal oxide represented by the general formula: Y1-xAgxMnO3, wherein 0.01?x?0.15. The composite metal oxide is represented by the general formula: Y1-xAgxMn1-yAyO3, wherein A is one metal selected from the group consisting of Ti, Nb, Ta and Ru, and 0.005?y?0.2.Type: GrantFiled: October 18, 2007Date of Patent: April 6, 2010Assignee: Honda Motor Co., Ltd.Inventors: Yuji Isogai, Kiyoshi Tanaami
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Publication number: 20100063326Abstract: Catalyst comprising a combination of oxidized metals and processes for cleaving phenylalkyl hydroperoxides in the presence of the catalyst.Type: ApplicationFiled: May 14, 2007Publication date: March 11, 2010Inventors: Narayana Mysore, John Charles Saukaitis, John Anthony Smegal
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Patent number: 7662742Abstract: A method for producing a catalyst containing given atoms in a given atomic proportion for use in producing methacrylic acid through gas-phase catalytic oxidation of methacrolein with molecular oxygen comprising the steps of: (i) preparing a solution or slurry containing at least molybdenum, phosphorus, and vanadium (liquid I); (ii) preparing a solution or slurry containing ammonium radical (liquid II); (iii) preparing a mixture of the liquid I and the liquid II by introducing one liquid (liquid PR) of the liquid I and the liquid II into a tank (tank A) and pouring the other liquid (liquid LA) on a continuous region in the surface of the liquid PR, the continuous region occupying 0.01 to 10% of the whole area of the surface of the liquid PR; and (iv) drying and calcining the resultant solution or slurry containing a catalyst precursor comprising all the catalyst constituents.Type: GrantFiled: October 27, 2004Date of Patent: February 16, 2010Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Hiroyuki Naitou, Takashi Karasuda, Tomoki Fukui
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Patent number: 7655749Abstract: Methods for synthesizing dimeric or higher polymeric reaction products of nitrogen aromatics comprise contacting a composition comprising the nitrogen aromatic with a catalyst composition. The catalyst is in particulate form and comprises a first metal substrate having a second reduced metal coated on the substrate.Type: GrantFiled: September 19, 2005Date of Patent: February 2, 2010Assignee: GM Global Technology Operations, Inc.Inventors: Andrew M. Mance, Tao Xie, Belabbes Merzougui, Charlene A. Hayden
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Patent number: 7642214Abstract: An object of the present invention is to provide a highly active catalyst for producing an unsaturated oxygen-containing compound from an alkane and the catalyst comprising Mo, V, Ti and Sb or Te as the indispensable active components. The preferable catalyst is represented by formula (1) or (2) as shown below, Mo1.0VaTibXcYdOe??(1) Mo1.0VaTibXcYdZfOe??(2) wherein X represents Sb or Te; Y represents Nb, W or Zr; Z represents Li, Na, K, Rb, Cs, Mg, Ca or Sr; a, b, c, d, e and f represent atomic ratios of their respective elements, with 0<a<0.7, 0<b<0.3, 0<c<0.7, 0?d<0.3, 0<f<0.1; e is a number determined by oxidation states of the other elements than oxygen.Type: GrantFiled: July 28, 2006Date of Patent: January 5, 2010Assignee: Nippon Kayaku Kabushiki KaishaInventors: Tomoaki Kobayashi, Yoshimasa Seo
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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
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Publication number: 20090324468Abstract: The present invention pertains to catalyst systems for nitrogen oxide, carbon monoxide, hydrocarbon, and sulfur reactions that are free or substantially free of platinum group metals. The catalyst system of the present invention comprise a substrate and a washcoat, wherein the washcoat comprises at least one oxide solid, wherein the oxide solid comprises one or more selected from the group consisting of a carrier material oxide, a catalyst, and mixtures thereof. The catalyst system may optionally have an overcoat, wherein the overcoat comprises at least one oxide solid, wherein the oxide solid comprises one or more selected from the group consisting of a carrier material oxide, a catalyst, and mixtures thereof. The catalyst comprises one or more selected from the group consisting of a ZPGM transition metal catalyst, a mixed metal oxide catalyst, a zeolite catalysts, or mixtures thereof.Type: ApplicationFiled: June 27, 2008Publication date: December 31, 2009Inventors: Stephen J. Golden, Randal Hatfield, Jason Pless, Johnny Ngo, Mann Sakbodin
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Patent number: 7638457Abstract: Disclosed is a process for the preparation of a modified vanadium/phosphorus mixed oxide catalyst for the partial oxidation of n-butane to maleic anhydride. The catalyst comprises vanadyl pyrophosphate as main component and niobium as a promoter element in an amount corresponding to an atomic ratio of vanadium to niobiurn in the range of 250:1 to 60:1. The catalyst exhibits improved activity, improved yield of maleic anhydride, and optimal performance from the very beginning of its catalytic lifetime.Type: GrantFiled: September 15, 2004Date of Patent: December 29, 2009Assignee: Lonza S.p.A.Inventors: Federico Ghelfi, Gianluca Mazzoni, Carlo Fumagalli, Fabrizio Cavani, Francesca Pierelli
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Patent number: 7638459Abstract: A layered composition which can be used in various processes has been developed. The composition comprises an inner core such as a cordierite core and an outer layer comprising a refractory inorganic oxide, a fibrous component and an inorganic binder. The refractory inorganic oxide layer can be alumina, zirconia, titania, etc. while the fibrous component can be titania fibers, silica fibers, carbon fibers, etc. The inorganic oxide binder can be alumina, silica, zirconia, etc. The layer can also contain catalytic metals such as gold and platinum plus other modifiers. The layered composition is prepared by coating the inner core with a slurry comprising the refractory inorganic oxide, fibrous component, an inorganic binder precursor and an organic binding agent such as polyvinyl alcohol. The composition can be used in various hydrocarbon conversion processes.Type: GrantFiled: May 25, 2005Date of Patent: December 29, 2009Assignee: UOP LLCInventors: Dean E. Rende, James E. Rekoske, Jeffery C. Bricker, Jeffrey L. Boike, Masao Takayama, Kouji Hara, Nobuyuki Aoi
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Publication number: 20090317308Abstract: Catalysts are formulated to resemble a direct ammonia/air fuel cell at short circuit at the nanoscale level to convert ammonia in aqueous solution directly and spontaneously to nitrogen at near or above ambient temperature. The catalyst particle contains a type-A catalyst subparticles for ammonia oxidation to nitrogen, and a type-C catalyst subparticles for oxygen reduction, with the type-A and type-C catalyst subparticles electrically shorted. Advantages realized at the nanoscale level are enhanced conductances for electrons and hydroxyl anions between the neighboring type-A and type-C catalyst subparticles. With the catalysts packed and confined in a catalyst bed in a chemical reactor, the direct conversion of ammonia in an aqueous phase to nitrogen can be carried out continuously for ammonia removal from a water stream in a compact package, and without the high cost arising from constructing and maintaining a bulk electrochemical device, and without the step of exacting the ammonia into gas phase.Type: ApplicationFiled: June 18, 2009Publication date: December 24, 2009Inventor: Xiaoming Ren
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Patent number: 7628968Abstract: The present invention is directed to high activity titanium oxide DeNOx catalysts. In preferred embodinents, by depositing vanadium oxide on a titania supported metal oxide such as tungsten oxide, an improved catalyst may be generated. This catalyst may be used in the treatment of exhaust from sources such as automobiles and industrial plants.Type: GrantFiled: May 23, 2008Date of Patent: December 8, 2009Assignee: Millenium Inorganic Chemicals, Inc.Inventors: Steven M Augustine, Guoyi Fu
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Patent number: 7625840Abstract: A nanoporous catalytic membrane which displays several unique features including pores which can go through the entire thickness of the membrane. The membrane has a higher catalytic and product selectivity than conventional catalysts. Anodic aluminum oxide (AAO) membranes serve as the catalyst substrate. This substrate is then subjected to Atomic Layer Deposition (ALD), which allows the controlled narrowing of the pores from 40 nm to 10 nm in the substrate by deposition of a preparatory material. Subsequent deposition of a catalytic layer on the inner surfaces of the pores reduces pore sizes to less than 10 nm and allows for a higher degree of reaction selectivity. The small pore sizes allow control over which molecules enter the pores, and the flow-through feature can allow for partial oxidation of reactant species as opposed to complete oxidation. A nanoporous separation membrane, produced by ALD is also provided for use in gaseous and liquid separations.Type: GrantFiled: September 14, 2004Date of Patent: December 1, 2009Assignee: UChicago Argonne, LLC.Inventors: Michael J. Pellin, John N. Hryn, Jeffrey W. Elam
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Patent number: 7625834Abstract: In a method of producing a catalyst for the production of methacrylic acid, which has a composition of the following formula (1), when mixing 100 parts by mass of a solution or a slurry (liquid A) containing molybdenum atoms, phosphorous atoms and vanadium atoms in which the content of ammonium species is 0 to 1.5 mol relative to 12 mol of the molybdenum atoms, 5 to 300 parts by mass of a solution or a slurry (liquid B) containing 6 to 17 mol of ammonium species relative to 12 mol of the molybdenum atoms contained in the liquid A and a solution or a slurry (liquid C) containing an element Z such as cesium, the liquid B is mixed with the liquid A, the liquid C or a mixture of the liquid A and the liquid C over 0.1 to 15 minutes PaMobVcCudXeYfZgOh??(1).Type: GrantFiled: July 4, 2003Date of Patent: December 1, 2009Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Hiroyuki Naitou, Takashi Karasuda
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Patent number: 7625837Abstract: A composition, containing vanadium, potassium and a support is disclosed. A method of preparing such composition is also disclosed. The composition is employed in a process to remove a heavy metal from a gaseous feed stream which can optionally include a separate heavy metal adsorption stage.Type: GrantFiled: June 21, 2005Date of Patent: December 1, 2009Assignee: ConocoPhillips CompanyInventors: Glenn W. Dodwell, Joseph B. Cross, Marvin M. Johnson, Edward L. Sughrue, II, Jianhua Yao
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Publication number: 20090285741Abstract: The present invention concerns the selective removal of nitrogen oxides (NOx) from gasses. In particular, the invention concerns a process, a catalyst and the use of a catalyst for the selective removal of nitrogen oxides in the presence of ammonia from gases containing a significant amount of alkali metal and/or alkali-earth compounds which process comprises using a catalyst combined of (i) a formed porous superacidic support, said superacidic support having an Hammett acidity stronger than Ho=?12, and (ii) a metal oxide catalytic component deposited on said superacidic support selected from the group consisting of oxides of Fe, Cu, V, Cr, Mn, and any mixtures thereof.Type: ApplicationFiled: September 25, 2007Publication date: November 19, 2009Applicant: Technical University of DenmarkInventors: Soren Birk Rasmussen, Arkady Kustov, Rasmus Fehmann, Johannes Due-Hansen
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Patent number: 7615513Abstract: The present invention relates to the use of a catalyst comprising at least one first catalyst zone located towards the gas inlet, a second catalyst zone located closer to the gas outlet and a third catalyst zone located even closer to or at the gas outlet for the preparation of phthalic anhydride by gas-phase oxidation of o-xylene and/or naphthalene, with the catalyst zones preferably each having an active composition comprising TiO2, characterized in that the catalyst activity of the first catalyst zone is higher than the catalyst activity of the second catalyst zone. Furthermore, a preferred process for the preparation of phthalic anhydride is described.Type: GrantFiled: March 2, 2006Date of Patent: November 10, 2009Assignee: Süd-Chemie AGInventors: Christian Guckel, Harald Dialer, Marvin Estenfelder, Werner Pitschi
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Patent number: 7608652Abstract: The present invention relates to a catalyst composition for producing polyethylene terephthalate from terephthalic acid and ethylene glycol, comprising: (i) an antimony compound, being present such that the elemental antimony is in a range of about 15 ppm to less than 150 ppm; (ii) a zinc compound, being present such that the elemental zinc is in a range of about 40 to about 160 ppm; as well as a process for the preparation thereof.Type: GrantFiled: February 10, 2005Date of Patent: October 27, 2009Assignee: Saudi Basic Industries CorporationInventors: Zahir Bashir, Jamil Siddiqui, Venkatanathan Sampath, Khalid Al-Luhaidan
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Patent number: 7608558Abstract: The present invention pertains to a sulfur-containing catalyst composition suitable for the hydrotreating of hydro-carbon feeds which comprises a Group VIB metal component selected from molybdenum, tungsten, and mixtures thereof, a Group V metal component selected from vanadium, niobium, tantalum, and mixtures thereof, and a Group VIII metal component selected from nickel, cobalt, iron, and mixtures thereof, the metal components (calculated as oxides) making up at least 50 wt. % of the catalyst, wherein the molar ratio between the metal components satisfies the following formula: (Group VIB+Group V):(Group VIII)=0.5-2:1. This catalyst has been found to show a high activity in sulfur removal in combination with good aromatics removal properties.Type: GrantFiled: April 19, 2005Date of Patent: October 27, 2009Inventors: Sonja Eijsbouts, Stuart Leon Soled, Sabato Miseo
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Patent number: 7598205Abstract: In a three-way catalyst for purifying exhaust gases from internal combustion engines, scattering of bismuth components can be suppressed by employing a Bi—Ti composite oxide at a predetermined ratio. Accordingly, the effect of suppressing hydrogen sulfide emissions can be retained for a long time. This catalyst comprises a support substrate, and a catalyst layer formed on the support substrate and including a noble metal, a porous oxide, and a Bi—Ti composite oxide, and satisfies 0.3?R?1.5, where R is the molar ratio of the Bi content to the Ti content per unit volume of the support substrate.Type: GrantFiled: January 27, 2006Date of Patent: October 6, 2009Assignee: Toyota Jidosha Kabushiki KaishaInventor: Hiromasa Suzuki
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Patent number: 7592294Abstract: A process is described for producing a catalyst for gas-phase oxidations, in which a suspension of TiO2 and V2O5 particles is applied to a fluidized inert support, wherein at least 90% by volume of the V2O5 particles have a diameter of 20 ?m or less and at least 95% by volume of the V2O5 particles have a diameter of 30 ?m or less. The defined particle size distribution of the V2O5 allows a high coating efficiency.Type: GrantFiled: September 24, 2004Date of Patent: September 22, 2009Assignee: BASF SEInventors: Sebastian Storck, Jürgen Zühlke, Samuel Neto, Frank Rosowski, Wolfgang Rummel
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Patent number: 7589046Abstract: In a process for the thermal treatment of the precursor material of a catalytically active material in a rotary tube furnace through which a gas stream flows, at least a proportion of the gas stream flowing through the rotary tube furnace is circulated, and the associated rotary tube furnace apparatus and tube-bundle reactors for the partial gas-phase oxidation of acrolein to acrylic acid are loaded with catalysts whose catalytically active material is obtainable by the process for the thermal treatment.Type: GrantFiled: May 12, 2004Date of Patent: September 15, 2009Assignee: BASF AktiengesellschaftInventors: Martin Dieterle, Wolfgang Juergen Poepel, Silke Berndt, Raimund Felder, Signe Unverricht, Klaus Joachim Mueller-Engel
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Patent number: 7585477Abstract: The invention provides a catalyst for catalytic reduction of nitrogen oxides contained in exhaust gases wherein fuel is supplied and subjected to combustion under periodic rich/lean conditions and the resulting exhaust gases are brought into contact therewith, which catalyst comprises: (A) a catalyst component A comprising (c) ceria or (d) praseodymium oxide or (e) an oxide and/or a composite oxide of at least two elements selected from the group consisting of cerium, zirconium, praseodymium, neodymium, terbium, samarium, gadolinium and lanthanum; (B) a catalyst component B comprising (d) a noble metal catalyst component selected from the group consisting of platinum, rhodium, palladium and oxides thereof and (e) a carrier; and (C) a catalyst component C comprising (f) a solid acid, and (g) a solid acid supporting an oxide of at least one element selected from the group consisting of vanadium, tungsten, molybdenum, copper, iron, cobalt, nickel and manganese.Type: GrantFiled: November 8, 2004Date of Patent: September 8, 2009Assignee: Honda Motor Co., Ltd.Inventors: Tadao Nakatsuji, Norio Suzuki, Hiroshi Ohno, Naohiro Sato, Tomoko Morita, Katsuji Wada
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Patent number: 7585487Abstract: A composition, containing vanadium and a support, wherein at least a portion of the vanadium has crystallite sizes of less than about 100 ? as determined by an analytical method such as X-Ray Diffraction, is disclosed. A method of preparing such composition is also disclosed. The composition is employed in a process to remove a heavy metal from a gaseous feed stream which can optionally include a separate mercury adsorption stage.Type: GrantFiled: December 12, 2003Date of Patent: September 8, 2009Assignee: Conocophillips CompanyInventors: Edward L. Sughrue, II, Glenn W. Dodwell, Joseph B. Cross, Jianhua Yao, Marvin M. Johnson
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Patent number: 7582588Abstract: A method of manufacturing a catalyst, a catalyst precursor, or a catalyst support comprising: (a) mixing a refractory metal oxide or precursor thereof with a liquid to form a paste; (b) adding said paste to an extruder, the extruder having a die plate comprising one or more dies, each die having a plurality of apertures, the outlet of each aperture having a cross sectional area of 6 mm2 or less; (c) extruding the paste through the apertures to form catalyst support extrudates; wherein the inlet of the apertures has a greater cross sectional area than the outlet of said apertures; and wherein for at least one die the combined cross sectional area of all apertures at the inlet relative to the total cross sectional area of the die at the inlet is higher than 50%.Type: GrantFiled: October 25, 2007Date of Patent: September 1, 2009Assignee: Shell Oil CompanyInventors: Peter John Van Den Brink, Ronald Jan Dogterom, Carolus Matthias Anna Maria Mesters
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Patent number: 7582276Abstract: The invention relates to nanoscale rutile or oxide powder that is obtained by producing amorphous TiO2 by mixing an alcoholic solution with a titanium alcoholate and with an aluminum alcohalate and adding water and acid. The amorphous, aluminum-containing TiO2 is isolated by removing the solvent, and is redispersed in water in the presence of a tin salt. Thermal or hydrothermal post-processing yields rutile or oxide that can be redispersed to primary particle size. The n-rutile or the obtained oxide having a primary particle size ranging between 5 and 20 nm can be incorporated into all organic matrices so that they remain transparent. Photocatalytic activity is suppressed by lattice doping with trivalent ions. If the amorphous precursor is redispersed in alcohol, or not isolated, but immediately crystallized, an anatase is obtained that can be redispersed to primary particle size.Type: GrantFiled: August 30, 2002Date of Patent: September 1, 2009Assignee: ITN Nanovation AGInventor: Ralph Nonninger
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Publication number: 20090209417Abstract: A method for treating a catalyst base that comprises a contact area of porous material. A fluid, such as a flue gas stream, can be conducted along the contact area. A catalytically relevant substance is introduced into pores of the catalyst base using a transport fluid and remains on pore wall areas after removal of the transport fluid. The introduction is carried out such that an amount of the catalytically relevant substance relative to the surface remains on the pore wall areas as a function of location within the pore and decreases within the pore after exceeding a specific pore depth. A blocking fluid can first be introduced into pore regions beyond the specific pore depth, thus blocking these regions when transport fluid containing the catalytically relevant substance is introduced.Type: ApplicationFiled: April 1, 2009Publication date: August 20, 2009Applicant: Evonik Energy Services GmbHInventors: Hermann Bruggendick, Maik Blohm
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Patent number: 7576033Abstract: An alkaline solution of an alkali-soluble compound, which is selected from the group consisting of an alkali-soluble silicon compound and an alkali-soluble germanium compound, is prepared. Also, a water-soluble bismuth compound solution is prepared. The alkaline solution and the water-soluble bismuth compound solution are subjected to mixing processing with agitation at a temperature of at least 80° C. by use of a shearing type agitator and are thereby allowed to react with each other. Thus Bi12MO20 particles, in which M represents an element selected from the group consisting of Si and Ge, are produced. The produced Bi12MO20 particles have small particle diameters and uniform composition.Type: GrantFiled: March 9, 2006Date of Patent: August 18, 2009Assignee: FUJIFILM CorporationInventor: Shigeru Nakamura
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Patent number: 7572543Abstract: A supported catalyst includes an oxide carrier, catalyst particles supported on the oxide carrier, and catalyst layers which locate among the catalyst particles, with interface portions among the oxide carrier, the catalyst particles and the catalyst layers. The catalyst layers have a melting point lower than 1,500° C. and contain an oxide or a composite oxide which includes at least one element selected from the group consisting of Mo, W, Sn and Ru.Type: GrantFiled: August 30, 2006Date of Patent: August 11, 2009Assignee: Kabushiki Kaisha ToshibaInventors: Wu Mei, Jun Tamura, Yoshihiko Nakano
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Patent number: 7572751Abstract: The present invention provides an oxidation catalyst for cleaning exhaust gas, capable of achieving an excellent catalytic activity at a lower temperature for particulates and high boiling point hydrocarbons in exhaust gas from internal-combustion engines. The oxidation catalyst for cleaning exhaust gas according to the present invention is a composite metal oxide represented by the general formula: LnyMn1-xAxO3, wherein Ln is a metal selected from the group consisting of Sc, Y, Ho, Er, Tm, Yb, and Lu; A is a metal selected from the group consisting of Ti, Nb, Ta, and Ru; 0.005?x?0.2; and 0.9?y?1. Ln is Y. The composite metal oxide has a hexagonal structure.Type: GrantFiled: April 4, 2007Date of Patent: August 11, 2009Assignee: Honda Motor Co., Ltd.Inventors: Yuji Isogai, Kiyoshi Tanaami
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Patent number: 7572427Abstract: The present invention is related to single and/or multiple-wall carbon nanotubes which may contain interstitial metals obtainable by a preparation process. The process includes a catalytic step using a catalytic system which includes a catalyst and a support. The support comprises 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: GrantFiled: July 3, 2002Date of Patent: August 11, 2009Assignee: Facultes Universitaires Notre-Dame De La PaixInventors: Janos B. Nagy, Narasimaiah Nagaraju, Isabelle Willems, Antonio Fonseca
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Publication number: 20090191431Abstract: To smoothly deliver a thermal energy required in an active site of a catalyst carried on a carrier. A method of manufacturing a catalyst carrier of the present invention includes the steps of: forming a mixed thin film in which at least metal and ceramics are mixed on a metal base, by spraying aerosol, with metal powders and ceramics powders mixed therein, on the metal base; and making the mixed thin film porous, by dissolving the metal of the mixed thin film into acid or alkaline solution to remove this metal.Type: ApplicationFiled: January 28, 2009Publication date: July 30, 2009Applicant: HITACHI CABLE, LTD.Inventors: Mineo Washima, Kenji Shibata, Fumihito Oka
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Publication number: 20090191101Abstract: A catalyst includes a carrier body and a catalytic portion carried by the carrier body. The catalytic portion includes a plurality of distinct layers of catalytic material, which layers may be deposited through atomic layer deposition techniques. The catalyst may have a selectivity for the conversion of alkanes to alkenes of over 50%. The catalyst may be incorporated in a reactor such as a fluidized bed reactor or a single pass reactor.Type: ApplicationFiled: January 28, 2009Publication date: July 30, 2009Inventors: Jeffrey W. ELAM, Michael J. Pellin, Joseph A. Libera, Peter C. Stair, Gerry Zajac, Steven A. Cohen
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Patent number: 7553794Abstract: A supported catalyst comprising a support having supported thereon at least one member selected from the group consisting of heteropolyacids and heteropolyacid salts, in which the heteropolyacid and/or heteropolyacid salt is substantially present in a surface layer region of the support to a depth of 30% from the support surface. The catalyst has a high performance when used for the production of compounds by various reactions.Type: GrantFiled: November 27, 2003Date of Patent: June 30, 2009Assignee: Showa Denko K.K.Inventor: Masaaki Sakai
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Publication number: 20090163357Abstract: An oxidation catalyst system is formed by particles of an oxidation catalyst dispersed in a porous sol-gel binder. The oxidation catalyst system can be applied by brush or spray painting while the sol-gel binder is in its sol state.Type: ApplicationFiled: February 12, 2009Publication date: June 25, 2009Applicant: USA as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Anthony N. Watkins, Bradley D. Leighty, Donald M. Oglesby, JoAnne L. Patry, Jacqueline L. Schryer
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Publication number: 20090163355Abstract: Plasma modifications of catalyst supports before and after impregnation of metal precursors improve the activity, selectivity and stability of catalysts, e.g. Ni catalysts for benzene hydrogenation and Pd catalysts for selective hydrogenation of acetylene. Plasma modification of the support before impregnation is slightly more effective than the plasma modification after impregnation. However, plasma modifications after impregnation increase the stability and selectivity of catalysts more effectively. The economic benefit of much improved stability of Ni catalysts for hydrogenation of benzene and the enhanced activity and selectivity of Pd catalysts for acetylene hydrogenation, e.g., is significant. Similar benefits for various catalysts and other industrial processes via RF plasma techniques are expected.Type: ApplicationFiled: August 31, 2007Publication date: June 25, 2009Inventors: Wen-Long Jang, Chalita Ratanatawanate
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Patent number: 7547655Abstract: The present invention provides a catalyst precursor for producing maleic anhydride by oxidizing butane. Said catalyst precursor is prepared by a process comprising partially reducing V+5 to V+4 in a mixture of alcohols consisting of isobutanol and benzyl alcohol in a volume ratio of 2.5-5.0, then adding a phosphoric oxy-acid and an alkylsilicon in turn. The catalyst precursor prepared according to said process has a small pore volume, a relatively high bulk density in an appropriate pore size distribution.Type: GrantFiled: January 30, 2004Date of Patent: June 16, 2009Assignee: New Tianjin T. & D. Co., Ltd.Inventor: Renshui Lan
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Patent number: 7547658Abstract: Syntheses of a new blue EC monomer (ProDOT-MePro), and a new red EC monomer (ProDOP-Et2) are described. Two additional new types of EC monomers based on 3,4-alkylenedioxythiophene include fluorinated EC monomers and an EC monomer including silicon. EC polymer devices having more than one different color EC polymer to enable additional colors to be provided using subtractive color mixing are also described, as well as EC polymer devices incorporating a logo, image, or text, are generally obscured when the device is colored, but become visible when the device is not colored. Also described are EC polymer devices that include a cathodic EC polymer layer, a gel electrolyte, a counter electrode, and a reference electrode. Working prototypes of such devices exhibit significant increases in the speed of transition of the EC device from a colored state to a transparent state.Type: GrantFiled: October 31, 2007Date of Patent: June 16, 2009Assignee: University of WashingtonInventors: Lu Liu, Chunye Xu, Susan E. Legenski, Minoru Taya
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Publication number: 20090143225Abstract: The present invention provides for catalysts for selective catalytic reduction of nitrogen oxides. The catalysts comprise metal oxide supporters, vanadium, an active material, and antimony, a promoter that acts as a catalyst for reduction of nitrogen oxides, and at the same time, can promote higher sulfur poisoning resistance and low temperature catalytic activity. The amount of antimony of the catalysts is preferably 0.5-7 wt %.Type: ApplicationFiled: January 10, 2006Publication date: June 4, 2009Inventors: Heon-Phil Ha, Soon-Hyo Chung, Young-Joo Oh
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Patent number: 7541012Abstract: The present invention features a catalytic material which includes a metal catalyst anchored to a nano-sized crystal containing a metal oxide. Furthermore, the present invention features a method of producing the catalytic material described herein. Finally, the present invention features using the catalytic material for removing contaminants and for getting the desired products.Type: GrantFiled: July 7, 2004Date of Patent: June 2, 2009Assignee: The Hong Kong University of Science and TechnologyInventors: King Lun Yeung, Nan Yao, Ka Yee Ho