Of Copper Patents (Class 502/345)
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Patent number: 6534432Abstract: A method and catalyst system for economically producing aromatic carbonates from aromatic hydroxy compounds. In one embodiment, the present invention provides a method of carbonylating aromatic hydroxy compounds by contacting at least one aromatic hydroxy compound with oxygen and carbon monoxide in the presence of a carbonylation catalyst system that includes a catalytic amount of an inorganic co-catalyst containing zinc. In various alternative embodiments, the carbonylation catalyst system can include an effective amount of a palladium source and an effective amount of a halide composition. Further alternative embodiments can include catalytic amounts of various inorganic co-catalyst combinations.Type: GrantFiled: September 15, 2000Date of Patent: March 18, 2003Assignee: General Electric CompanyInventors: James Lawrence Spivack, Donald Wayne Whisenhunt, Jr., James Norman Cawse, Bruce Fletcher Johnson
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Patent number: 6528029Abstract: Composite of at least two metal oxides in the form of Primary Particles and a support having a particle size greater than the Primary Particles used in the formation of a catalyst composition for the treatment of a pollutant containing gas.Type: GrantFiled: October 13, 1999Date of Patent: March 4, 2003Assignee: Engelhard CorporationInventors: Joseph C. Dettling, Joseph H-Z. Wu
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Publication number: 20030036669Abstract: Acetylenic compounds in olefin streams such as mixed 1,3-butadiene were selectively hydrogenated over the supported copper catalysts on highly porous supports such as alumina, silica, etc. The preferred supports have the average pore diameter larger than about 200 Å, no micro pores, total pore volume larger than about 0.65 cc/g, and preferably less than about 230 m2/g BET surface area. The copper catalysts were preferably promoted with the Group VIII metal such as palladium to improve low activity of copper catalyst. The product stream typically contains less than 20 ppm total alkynes. Also the copper catalysts and the palladium promoted copper catalysts may be modified with zinc oxide to improve the performance of the catalysts. The reactor was loaded with two or more copper catalysts promoted with different levels of palladium.Type: ApplicationFiled: April 6, 2001Publication date: February 20, 2003Applicant: CATALYTIC DISTILLATION TECHNOLOGIESInventors: J. Yong Ryu, Gary R. Gildert
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Patent number: 6521197Abstract: This invention relates to an improved process of producing hydrogen and carbon dioxide by the catalytical process of methanol reformation. The improvement resides in the use of catalysts made up substantially of metal oxides selected from the group consisting of Al2O3, TiO2, ZrO2 and ZnO, and which catalyst is in the form of a substantially cylindrical tablet having a maximum diameter in the range from 0.8 to 2.0 mm and a maximum height in the range of from 0.5 to 2.0 mm.Type: GrantFiled: July 14, 2000Date of Patent: February 18, 2003Assignee: BASF AktiengesellschaftInventors: Otto Kumberger, Otto Hofstadt
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Patent number: 6518220Abstract: Shaped catalysts for heterogeneously catalyzed reactions are in the form of hollow cylinders or annular tablets whose end faces are rounded both to the outer edge and to the edge of the central hole, i.e. have no right-angled edges.Type: GrantFiled: February 14, 2001Date of Patent: February 11, 2003Assignee: BASF AktiengesellschaftInventors: Christian Walsdorff, Otto Hofstadt, Raimund Felder, Ruprecht Meissner, Klaus Harth
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Patent number: 6517806Abstract: Present invention relates to a CdZnMS photocatalyst for producing hydrogen from water and a method for preparing thereof and a method for producing hydrogen by using said photocatalyst. Said photocatalyst is characterized by the following general formula VII: m(a)/CdxZnyMzS (VII) wherein ‘m’ represents at least one doped metal element as an electron acceptor selected from the group consisting of Ni, Pt, Ru and the oxidized compound of these metals; ‘a’ represents a % by weight of m, ranging from 0.10 to 5.00; ‘M’ is a catalyst element selected from the group consisting of Mo, V, Al, Cs, Mn, Fe, Pd, Pt, P, Cu, Ag, Ir, Sb, Pb, Ga and Re. ‘z’ represents an atom % of M/(Cd+Zn+M), ranging from 0.05 to 20.00 and ‘x’ and ‘y’ represent an atom % of Cd/(Cd+Zn+M) and an atom % of Zn/(Cd+Zn+M), ranging from 10.00 to 90.00, respectively.Type: GrantFiled: December 14, 2000Date of Patent: February 11, 2003Assignees: Korea Research Institute of Chemical Technology, Chonggu Co., Ltd.Inventors: Dae-Chul Park, Jin-Ook Baeg
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Patent number: 6500781Abstract: In a process for preparing C2-oxygenates by reaction of CO and H2over a rhodium-containing supported catalyst, the catalyst comprises, based on the total weight, from 0.01 to 1O% by weight of rhodium, from 0.001 to 10% by weight of zirconium, from 0.01 to 5% by weight of iridium, from 0.01 to 10% by weight of at least one metal selected from among copper, cobalt, nickel, manganese, iron, ruthenium and molybdenum, from 0.01 to 10% by weight of at least one alkali metal or alkaline earth metal selected from among lithium, sodium, potassium, rubidium, magnesium and calcium, on an inert support.Type: GrantFiled: October 16, 2001Date of Patent: December 31, 2002Assignee: BASF AktiengesellschaftInventors: Hongyuan Luo, Huanwen Zhou
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Publication number: 20020192515Abstract: The invention relates to a process for producing a catalytic component on a metallic or ceramic support for a fuel cell system, in which the catalytic component is applied to the metallic or ceramic support in at least one layer. This at least one layer contains at least one hydrophobic material component, which is applied together or alternately with at least one catalytically active material component in one process step. The invention also relates to a catalytic component, which is applied to a metallic or ceramic support, for a chemical reactor in a fuel cell system, and to methods of using the catalytic component.Type: ApplicationFiled: March 22, 2002Publication date: December 19, 2002Applicant: Ballard Power Systems AG.Inventors: Patrick Bachinger, Berthold Keppeler, Dagmar Nowak, Thomas Roeser, Michael Schmidt
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Publication number: 20020193248Abstract: A methanol reforming catalyst containing passivated copper and zinc oxide and/or alumina can be prepared byType: ApplicationFiled: March 6, 2002Publication date: December 19, 2002Inventors: Markus Holzle, Michael Jolyon Sprague, Klaus Harth, Martin Schussler, Martin Karl, Stefan Boneberg
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Patent number: 6489264Abstract: A catalyst for oxidation of ammonia is of the general formula (AxByO3z)k (MEmOn)f, wherein: A is a cation of Ca, Sr, Ba, Mg, Be, La or mixtures thereof, B is cations of Mn, Fe, Ni, Co, Cr, Cu, V or mixtures thereof, x=0-2, y=1-2, z=0.8-1.7; MemOn is an aluminum oxide and/or oxide of silicon zirconium, chromium, aluminosilicates, oxides of rare earth elements (REE) or mixtures thereof, m=1-3, n=1-2, k and f are % by weight, with the ratio f/k=0.01-1. The catalyst may be granules of different configuration, including blocks of honeycomb structure. The catalyst is thermally stable, resistant to thermal shocks. There is no water runoff.Type: GrantFiled: September 10, 1999Date of Patent: December 3, 2002Assignee: Institut Kataliza Imeni G.K.Inventors: Lubov Alexandrovna Isupova, Vladislav Alexandrovich Sadykov, Olga Ivanovna Snegurenko, Evgeny Abramovich Brushtein, Tatyana Viktorovna Telyatnikova, Valery Vasilievich Lunin
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Publication number: 20020161259Abstract: This invention is directed to a process for dehydrogenating primary alcohols to make salts of carboxylic acids. The process comprises contacting a catalyst, preferably a metal support coated with copper or silver, with an alkaline mixture comprising a primary alcohol. The invention further provides for novel copper-containing and silver-containing catalysts which may be used, for example, in the above process as well as processes for making such catalysts.Type: ApplicationFiled: February 28, 2002Publication date: October 31, 2002Applicant: Monsanto CompanyInventors: David A. Morgenstern, Juan P. Arhancet, Howard C. Berk, William L. Moench, James C. Peterson
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Publication number: 20020151436Abstract: A fixed bed Raney copper catalyst, which is doped with iron, noble metals or other metals, is employed as the fixed bed catalyst in the fixed bed dehydrogenation of alcohols.Type: ApplicationFiled: June 14, 2002Publication date: October 17, 2002Inventors: Daniel Ostgard, Monika Berweiler, Karsten Seelbach
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Patent number: 6464951Abstract: In accordance with the present invention, a catalyst is described which comprises at least one metal selected from the group consisting of copper, zinc, iron, tungsten, molybdenum, and chromium distributed over a catalyst support comprising a material containing at least one of silicon, titanium, zirconium, magnesium, aluminum, and activated carbon. The catalyst is used to remove phosgene from a contaminated gas stream and/or reduce or eliminate phosgene from an effluent of a previously treated gas stream. At least one metal in the catalyst of the present invention is preferably present in an amount from about 0.001 wt % to about 15 wt %. When more than one metal is present, the combined metals preferably do not exceed 20 wt %. Catalysts in accordance with the present invention may be used as Photocatalysts. Processes for using the catalysts and Photocatalysts of the present invention are also described.Type: GrantFiled: April 20, 2002Date of Patent: October 15, 2002Assignee: KSE, Inc.Inventors: James R. Kittrell, David A. Gerrish, Michael C. Milazzo
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Publication number: 20020141923Abstract: In accordance with the present invention, a catalyst is described which comprises at least one metal selected from the group consisting of copper, zinc, iron, tungsten, molybdenum, and chromium distributed over a catalyst support comprising a material containing at least one of silicon, titanium, zirconium, magnesium, aluminum, and activated carbon. The catalyst is used to remove phosgene from a contaminated gas stream and/or reduce or eliminate phosgene from an effluent of a previously treated gas stream. At least one metal in the catalyst of the present invention is preferably present in an amount from about 0.001 wt % to about 15 wt %. When more than one metal is present, the combined metals preferably do not exceed 20 wt %. Catalysts in accordance with the present invention may be used as photocatalysts. Processes for using the catalysts and photocatalysts of the present invention are also described.Type: ApplicationFiled: March 21, 2002Publication date: October 3, 2002Applicant: KSE, INC.Inventors: James R. Kittrell, David A. Gerrish, Michael C. Milazzo
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Patent number: 6458741Abstract: Catalyst compositions for destruction of volatile organic carbons (VOCs) in an oxygen-containing gas stream at low temperatures comprising: one or more first metals selected from the group consisting of: Ce and Zr; and at least one of: (a) one or more second metals selected from the group consisting of: Gd, La, Sr and Sc; (b) one or more third metals selected from the group consisting of: Ti, V, Mn, Fe, Co, Cr, Ni, Au, Ag and Cu; and (c) one or more fourth metals selected from the group consisting of Pt, Pd, Rh, Ru, Re, Os and Ir are provided. Catalyst compositions provided may be single-phase, mixed-metal oxides, or multi-phase. Catalysts of this invention have improved activity for VOC reduction at low temperatures in gaseous systems.Type: GrantFiled: December 20, 1999Date of Patent: October 1, 2002Assignee: Eltron Research, Inc.Inventors: Shane E. Roark, James H. White
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Publication number: 20020132042Abstract: Disclosed are catalyst compositions suitable for depositing electroless metal seed layers and for enhancing discontinuous seed layers. Also disclosed are methods of depositing electroless seed layers and enhancing discontinuous seed layers.Type: ApplicationFiled: October 24, 2001Publication date: September 19, 2002Applicant: Shipley Company, L.L.C.Inventors: David Merricks, Martin T. Goosey, Narinder Bains
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Patent number: 6452059Abstract: A catalyst for the oxi-chlorination of ethylene to 1,2-dichloroethane which comprises cupric oxychloride (CuOHCl) as an active component. CuOHCl is preferably supported on a porous support such as alumina and used in fixed-bed oxi-chlorination processes.Type: GrantFiled: October 26, 1999Date of Patent: September 17, 2002Assignee: Sud Chemie M.T. S.r.l.Inventors: Francesco Casagrande, Marinella Malentacchi
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Publication number: 20020128329Abstract: A combination comprising a bed of a particulate copper-containing catalyst and, a guard bed of a particulate composition containing a) lead and/or at least one lead compound that reacts with hydrogen chloride and b) a support therefor. The lead compound is preferably lead nitrate. The combination is of particular utility for the low temperature shift reaction wherein carbon monoxide is reacted with steam to produce hydrogen and carbon dioxide.Type: ApplicationFiled: March 5, 2002Publication date: September 12, 2002Inventor: Michael J. Watson
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Patent number: 6447576Abstract: A cleaning agent and a cleaning process for cleaning a harmful gas containing, as a harmful component, an organometallic compound represented by the general formula: Rm—M—Hn wherein R is alkyl; M is As, P, S, Se or Te; and m and n are each positive integer satisfying the relation: m+n=valence of M are described. The cleaning agent contains, as an effective component, copper (II) oxide or a mixture of copper (II) oxide and manganese dioxide. The copper (II) oxide has a BET specific surface area of 10 m2/g or greater which is extremely larger than that of copper (II) oxide conventionally used as the effective component of known cleaning agents. With such an extremely large BET specific surface area, the cleaning agent strongly and stably adsorbs the harmful organometallic compound, thereby efficiently cleaning the harmful gas without causing desorption of the adsorbed organometallic compound.Type: GrantFiled: September 28, 2000Date of Patent: September 10, 2002Assignee: Japan Pionics Co., Ltd.Inventors: Kenji Otsuka, Yutaka Amijima, Ryuji Hasemi, Youji Nawa
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Patent number: 6448457Abstract: A process for the catalytic hydrogenation of a carbonyl compound or of a mixture of two or more carbonyl compounds in the presence of a catalyst which comprises an inorganic support containing TiO2, and as active component copper or a mixture of copper and at least one of the metals selected from the group of zinc, aluminum, cerium, a noble metal and a group VIII metal, wherein the copper surface area does not exceed 10 m2/g.Type: GrantFiled: August 29, 2000Date of Patent: September 10, 2002Assignee: BASF AktiengesellschaftInventors: Michael Hesse, Detlef Kratz, Gerhard Schulz, Marc Walter, Manfred Sauerwald
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Patent number: 6444178Abstract: An exhaust gas purification device includes a porous body of catalytic material of the general formula AaBbO4 disposed in an exhaust gas stream of an engine. The porous body of catalytic material has a characteristic response temperature above which it is catalytically active to reduce pollutants in the presence of a reducing agent. The porous body stores at least 20% by volume hydrocarbons at temperatures below the response temperature. A represent at least one element selected from Mg, Ca, Mn, Fe, Ni, Co, Cu, Zn, Sn, Ti and A+B is less than 3, A is greater than 0 and B greater than 0.Type: GrantFiled: January 19, 2000Date of Patent: September 3, 2002Assignees: DaimlerChrysler AG, BASF AktiengesellschaftInventors: Martin Hartweg, Rolf-Dirc Roitzheim, Andrea Seibold, Leonhard Walz, Thomas Fetzer, Bernd Morsbach
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Patent number: 6437206Abstract: Unsaturated compounds in hydrocarbon streams are hydrogenated over a catalyst which, in the unused state, shows reflections which correspond to the following lattice plane spacings in the X-ray diffraction pattern [in 10−10m]: 4.52, 2.85, 2.73, 2.44, 2.31, 2.26, 2.02, 1.91, 1.80, 1.54, 1.51, 1.49, 1.45 and 1.39 and have specific relative intensities.Type: GrantFiled: August 30, 1999Date of Patent: August 20, 2002Assignee: BASF AktiengesellschaftInventors: Gerald Meyer, Ekkehard Schwab, Michael Hesse, Peter Trübenbach, Hans-Joachim Müller
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Patent number: 6432871Abstract: A process for manufacturing a catalyst body for generating hydrogen having at least one thin, large-surface catalyst layer, through which the reaction mixture can be passed includes steps of pressing a copper powder (particularly dendritic copper) to form a thin and highly compressed layer which forms a formed body, sintering, the formed body in a reducing atmosphere so that a net-type carrier structure made of copper is formed, and activating a surface layer of the formed body.Type: GrantFiled: October 18, 1999Date of Patent: August 13, 2002Assignee: XCELLSIS GmbHInventors: Patrick Bachinger, Berthold Keppeler, Oskar Lamla, Bernd Schoenrock, Martin Schuessler, Dagmar Waidelich
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Patent number: 6429332Abstract: A catalyst for the production of acrylic acid by the vapor-phase catalytic oxidation of acrolein or acrolein-containing gas and a method for the production of acrylic acid by the use of this catalyst are provided. The catalyst of this invention comprises (A) a catalyst having Mo and V as essential components and used for the production of acrylic acid by vapor-phase catalytic oxidation of acrolein and (B) a solid acid having acid strength (Ho) of not more than −11.93. Since this catalyst excels in catalytic activity and service life, it allows acrylic acid to be produced stably at a high yield for a long time.Type: GrantFiled: May 31, 1995Date of Patent: August 6, 2002Assignee: Nippon Shokubai Co., Ltd.Inventors: Michio Tanimoto, Tatsuya Kawajiri, Hiromi Yunoki, Yukio Aoki
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Publication number: 20020098975Abstract: A catalyst for purifying an exhaust gas includes zirconia particles, and a transition metal layer, covering at least a part of a surface of the zirconia particles in a lamellar manner. It can reduce the emission of particulate materials (i.e., P.M.), such as SOF and sulfates, because the contacting area enlarges between the transition metal layer and materials to be purified.Type: ApplicationFiled: November 15, 2001Publication date: July 25, 2002Applicant: CATALER CORPORATIONInventors: Mareo Kimura, Yoriko Hasegawa, Norihiko Aono, Seiji Tanaka
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Publication number: 20020082163Abstract: A reverse-layered, catalyzed adsorber system for treating exhaust gas comprises a catalyst washcoat supported by a catalyst substrate, with an adsorption material disposed over at least a portion of the catalyst washcoat. During the treatment of the hydrocarbons from an internal combustion engine exhaust, the adsorption material layer adsorbs hydrocarbons from the exhaust gas. A built-in catalyst layer later catalyzes the conversion of the hydrocarbons released from the adsorption material when the adsorber system is hot.Type: ApplicationFiled: December 22, 2000Publication date: June 27, 2002Inventors: JiYang Yan, W. Burton Williamson
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Patent number: 6410806Abstract: A reduction-treated copper-based catalyst obtained by reducing a copper-based catalyst with hydrogen in the presence of a liquid phase and a process for producing &agr;-phenylethyl alcohol, which comprises hydrogenating acetophenone in the presence of the same.Type: GrantFiled: January 18, 2001Date of Patent: June 25, 2002Assignee: Sumitomo Chemical Company, LimitedInventors: Noriaki Oku, Masaru Ishino
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Publication number: 20020074174Abstract: A pollutant treating device especially adapted for motor vehicles in which a housing containing a catalyst composition for treating pollutants is positioned within the normal flow pattern of ambient air within the motor vehicle and is preferably removably placed within a support, such as a bracket assembly where the housing can be readily removed and replaced and/or reused.Type: ApplicationFiled: October 17, 2001Publication date: June 20, 2002Applicant: ENGELHARD CORPORATIONInventors: Joseph C. Dettling, John J. Steger, Michael Spencer, Robert V. Russo
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Patent number: 6387841Abstract: Disclosed are catalysts situated on a polyoxometallate support. Also disclosed are methods of preparing these catalysts and processes for the conversion of alkanes to unsaturated organic compounds using these catalysts.Type: GrantFiled: July 27, 2000Date of Patent: May 14, 2002Assignee: Rohm and Haas CompanyInventors: Anna. Marie Devlin, Anthony Frank Volpe, Jr.
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Patent number: 6383273Abstract: The invention relates to a process for producing compositions containing a biocidal compound or adsorbent and/or catalyst compound and the compositions thereof. The invention also relates to a method for reducing or eliminating the amount of a bioactive agent or contaminant from an environment by contacting the environment with the composition of for a sufficient time to reduce or eliminate the amount of the bioactive agent or contaminant in the environment.Type: GrantFiled: August 12, 1999Date of Patent: May 7, 2002Assignee: Apyron Technologies, IncorporatedInventors: Bryan E. Kepner, Eric A. Mintz
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Patent number: 6383979Abstract: The invention is a catalyst composition and process for making and using the catalyst composition. The catalyst composition promotes the combustion of carbon monoxide to carbon dioxide. The catalyst composition includes an effective concentration of Group VIII transition metal, such as palladium, an effective concentration of Group IB transition metal, such as copper, and a support, such as microspheroidal alumina.Type: GrantFiled: August 10, 1998Date of Patent: May 7, 2002Assignee: Tricat industries, Inc.Inventors: John R. McCauley, J. Gary McDaniel, Ranier Schödel, Peter Birke, Michael Keck
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Publication number: 20020052291Abstract: A sorbent material is provided comprising a material reactive with sulfur, a binder unreactive with sulfur and an inert material, wherein the sorbent absorbs the sulfur at temperatures between 30 and 200° C. Sulfur absorption capacity as high as 22 weight percent has been observed with these materials.Type: ApplicationFiled: September 30, 1999Publication date: May 2, 2002Inventor: RANJANI SIRIWARDANE
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Patent number: 6379536Abstract: Compositions comprising a component containing (i) an acidic oxide support, (ii) an alkali metal and/or alkaline earth metal or mixtures thereof, (iii) a transition metal oxide having oxygen storage capability, and (iv) a transition metal selected from Groups Ib and/or IIb of the Periodic Table provide NOx control performance in FCC processes. The acidic oxide support preferably contains silica alumina. Ceria is the preferred oxygen storage oxide. Cu and Ag are preferred Group I/IIb transition metals. The compositions are especially useful in the cracking of hydrocarbon feedstocks having above average nitrogen content.Type: GrantFiled: August 17, 2000Date of Patent: April 30, 2002Assignee: W. R. Grace & Co.-Conn.Inventors: Alan W. Peters, John A. Rudesill, Gordon Dean Weatherbee, Edward F. Rakiewicz, Mary Jane A. Barbato-Grauso
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Patent number: 6376562Abstract: The present invention provides a hybrid catalyst which is prepared by mixing a methanol synthesis catalyst with SAPO-type zeolite as a methanol conversion catalyst, and a process for the preparation of hydrocarbons from carbon dioxide by using the hybrid catalyst. The hybrid catalyst of the invention can be used for preparing hydrocarbons having a carbon number of more than 2 from carbon dioxide under a relatively on the hydrocarbons produced. Therefore, the hybrid catalyst may be used for preparing various high-valued hydrocarbons from an ubiquitous carbon source of carbon dioxide.Type: GrantFiled: September 30, 1999Date of Patent: April 23, 2002Assignee: Korea Advanced Institute of Science and TechnologyInventors: Son-Ki Ihm, Young-Kwon Park, Jong-Ki Jeon, Kwang-Eun Jeong
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Patent number: 6372193Abstract: A process for catalytically oxidizing H2S contained in a gas directly to sulphur containing the following steps: combining the H2S-containing gas with a gas containing free oxygen in an amount to produce an oxygen-enriched H2S-containing gas having O2/H2S molar ratio ranging from about 0.05 to about 15; and contacting the oxygen-enriched H2S-containing gas with a catalyst for selective oxidation of H2S to sulphur, wherein the catalyst includes a catalytically active phase combined with a silicon carbide-based support and wherein the active phase of the catalyst consists of at least one oxysulphide of at least one metal selected from the group consisting of iron, copper, nickel, cobalt, chromium, molybdenum and tungsten, at a temperature above the dew point of sulphur formed during H2S oxidation.Type: GrantFiled: May 24, 2000Date of Patent: April 16, 2002Assignee: Elf Exploration ProductionInventors: Marc Ledoux, Jean Nougayrede, Cuong Pham-Huu, Nicolas Keller, Sabine Savin-Poncet, Claude Crouzet
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Patent number: 6372683Abstract: A method and catalyst system for producing aromatic carbonates from aromatic hydroxy compounds. In one embodiment, the method includes the step of contacting at least one aromatic hydroxy compound with oxygen and carbon monoxide in the presence of a carbonylation catalyst system having catalytic amounts of the following components: a Group VIII B metal source; a combination of inorganic co-catalysts including a copper source and at least one of a titanium source or a zirconium source; an onium chloride composition; and a base. Alternative embodiments include inorganic co-catalyst combinations of a lead source and at least one of a titanium source or a manganese source.Type: GrantFiled: January 10, 2001Date of Patent: April 16, 2002Assignee: General Electric CompanyInventors: Kirill Vladimirovich Shalyaev, Grigorii Lev Soloveichik, Bruce Fletcher Johnson, Donald Wayne Whisenhunt, Jr.
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Patent number: 6365766Abstract: Organohalosilanes are prepared by reacting an organic halide with metallic silicon particles in the presence of a metallic copper catalyst which is a metallic copper powder in flake form having a bulk specific gravity of 1-3 g/cm3 and a mean particle size of 10 &mgr;m to 1 mm as measured by laser diffraction particle size distribution analysis.Type: GrantFiled: April 12, 2000Date of Patent: April 2, 2002Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Mikio Aramata, Masaaki Furuya, Yoshihiro Shirota, Akio Muraida, Susumu Ueno, Toshio Shinohara
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Publication number: 20020037809Abstract: A catalyst structure is formed by forging catalyst support particles from a slurry into the surface of a metal substrate such that the particles protrude from the surface and are permanently fixed into the surface. The forging is accomplished by engaging rollers with the surface as it passes through the slurry to press the particles into the surface. The rollers may be brush rollers, fabric rollers or solid rollers. The particles may be any particles which are capable of having a catalyst deposited thereon and which are hard enough to forge into the metal substrate. The catalyst material is then deposited onto the catalyst support particles.Type: ApplicationFiled: August 27, 2001Publication date: March 28, 2002Inventors: Howard A. Fromson, William J. Rozell
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Patent number: 6361757Abstract: This invention provides a catalyst for producing hydrogen gas from a mixed gas comprising dimethyl ether and water vapor or carbon dioxide gas, which comprises copper, iron, cobalt, palladium, iridium, platinum, rhodium, or nickel as an active component, and a method of producing synthesis gas or hydrogen gas in a high yield at a low temperature. By using the catalyst, a fuel cell, electricity generation, reduction of iron ore and the like can be carried out.Type: GrantFiled: June 4, 1999Date of Patent: March 26, 2002Assignee: NKK CorporationInventors: Tsutomu Shikada, Yotaro Ohno, Norio Inoue, Masatsugu Mizuguchi, Keiji Tomura, Takeshi Furukawa, Takuya Kadowaki, Sadayoshi Iwabuchi, Takashi Ogawa, Masami Ono, Kaoru Fujimoto
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Patent number: 6355597Abstract: A catalyst system for economically producing aromatic carbonates from aromatic hydroxy compounds. In one embodiment, the present invention provides a carbonylation catalyst system that includes a catalytic amount of an inorganic co-catalyst containing bismuth. In various alternative embodiments, the carbonylation catalyst system can include an effective amount of a palladium source and an effective amount of a halide composition. Further alternative embodiments can include catalytic amounts of various inorganic co-catalyst combinations.Type: GrantFiled: April 27, 2000Date of Patent: March 12, 2002Assignee: General Electric CompanyInventors: James Lawrence Spivack, Donald Wayne Whisenhunt, Jr., James Norman Cawse, Bruce Fletcher Johnson, Kirill Shalyaev
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Publication number: 20020028746Abstract: A catalyst element for a stacked reactor for generating hydrogen from hydrocarbons includes a catalyst disc of porous material and a solid connection element. The catalyst-side end of the connection element is at least partially enclosed by the catalyst disc and is connected to this disc. The catalyst-side end of the connection element may have a mediator layer that is joined to the connection element over the entire area by sintering, soldering, or adhesive bonding. The mediator layer is joined to the catalyst disc over the entire area by sintering. Attachment means are provided at the exposed end, which is remote from the catalyst, of the connection element.Type: ApplicationFiled: August 8, 2001Publication date: March 7, 2002Inventors: Andreas Ebert, Oskar Lamla, Thomas Stefanovski
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Publication number: 20020025905Abstract: A structured catalyst for selective reduction of nitrogen oxides with ammonia using an ammonia-supplying compound. The catalyst is preferably used for exhaust gas treatment of diesel vehicles powered by diesel motors. The catalyst is characterized by the fact that it contains a reduction catalyst for selective reduction of nitrogen oxides with ammonia and a hydrolysis catalyst for the hydrolysis of urea, where the hydrolysis catalyst is applied in the form of a coating onto the reduction catalyst. By this arrangement of the two catalytic functions in one catalyst the exhaust gas system can be made very compactly and space saving. Moreover, advantageous synergistic effects result from the direct contact of the hydrolysis catalyst and the reduction catalyst.Type: ApplicationFiled: May 9, 2001Publication date: February 28, 2002Inventors: Michael Harris, Jurgen Leyrer, Yvonne Demel, Egbert Lox, Thomas Kreuzer
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Patent number: 6350714Abstract: The present invention relates to a process for preparing a catalyst by activating a catalytic composition which comprises a) at least one metal of group IB or IIB or a compound thereof, b) where appropriate a carrier which comprises treating the composition with an alkyne of the general formula I R1—C≡C—R2 (I) in which R1 is alkyl, cycloalkyl, aryl, hydroxyalkyl, haloalkyl, alkoxy or alkoxyalkyl, R2 is a hydrogen atom, alkyl, cycloalkyl or aryl, and a carbonyl compound of the general formula II in which R3 and R4 are, independently of one another, a hydrogen atom, alkyl, haloalkyl, cycloalkyl or aryl, to catalysts obtainable by this process, and to alkynylations and aminoalkylations employing these catalysts.Type: GrantFiled: May 31, 2000Date of Patent: February 26, 2002Assignee: BASF AktiengesellschaftInventors: Arnd Böttcher, Jochem Henkelmann, Thomas Preiss, Melanie Brunner
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Catalyst and process for the selective hydrogenation of unsaturated compounds in hydrocarbon streams
Patent number: 6350717Abstract: A catalyst comprising at least one metal of the 10th group of the Periodic Table of the Elements and at least one metal of the 11th group of the Periodic Table of the Elements on an aluminum oxide support, wherein the metal or metals of the 10th group is or are essentially concentrated in an outer layer close to the surface of the catalyst particle, the metal or metals of the 11th group is or are distributed essentially uniformly over the volume of the catalyst particle and the weight ratio of the metal or metals of the 11th group to the metal or metals of the 10th group is not more than 1.95.Type: GrantFiled: August 30, 1999Date of Patent: February 26, 2002Assignee: BASF AktiengesellschaftInventors: Andrea Frenzel, Cristina Freire Erdbrügger, Ekkehard Schwab, Michael Hesse, Gerd Linden, Herbert Wanjek, Hans-Martin Allmann -
Patent number: 6342191Abstract: This invention relates to a process for producing an enhanced adsorbent particle comprising contacting a non-amorphous, non-ceramic, crystalline, porous, calcined, aluminum oxide particle that was produced by calcining at a particle temperature of from 300° C. to 700° C., with an acid for a sufficient time to increase the adsorbent properties of the particle. A process for producing an enhanced adsorbent particle comprising contacting a non-ceramic, porous, oxide adsorbent particle with an acid for a sufficient time to increase the adsorbent properties of the particle is also disclosed. Particles made by the process of the instant invention and particle uses, such as remediation of waste streams, are also provided. The invention also relates to a method for producing an adsorbent and/or catalyst and binder system. The invention also relates to particles made by the process, binders, and methods for remediating contaminants in a stream.Type: GrantFiled: December 10, 1998Date of Patent: January 29, 2002Assignee: Apyron Technologies, Inc.Inventors: Bryan E. Kepner, Eric A. Mintz
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Publication number: 20020009414Abstract: Nanostructured materials and processes for the preparation of these nanostructured materials in high phase purities using cavitation is disclosed. The method preferably comprises mixing a metal containing solution with a precipitating agent and passing the mixture into a cavitation chamber. The chamber consists of a first element to produce cavitation bubbles, and a second element that creates a pressure zone sufficient to collapse the bubbles. The process is useful for the preparation of catalysts and materials for piezoelectrics and superconductors.Type: ApplicationFiled: January 16, 2001Publication date: January 24, 2002Inventors: William R. Moser, Oleg V. Kozyuk, Ivo M. Krausz, Sean Christian Emerson, Josef Find
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Publication number: 20020010091Abstract: A catalyst structure has catalytic particles dispersed over and forged into the surface of a metal substrate such that the particles protrude from the surface and are permanently fixed into the surface. The forging is accomplished by brush graining to press the particles into the surface The particles may be any particles which have catalytic activity for a particular purpose and which are hard enough to forge into the metal substrate.Type: ApplicationFiled: July 18, 2001Publication date: January 24, 2002Applicant: Howard A. FromsonInventors: Howard A. Fromson, William J. Rozell
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Patent number: 6338830Abstract: The invention relates to a method for producing an adsorbent and/or catalyst and binder system comprising I) mixing components comprising (a) a binder comprising a colloidal metal oxide or colloidal metalloid oxide, (b) an oxide adsorbent and/or catalyst particle, and (c) an acid, (ii) removing a sufficient amount of water from the mixture to cross-link components a and b to form an adsorbent and/or catalyst and binder system. The invention also relates to particles made by the process, binders, and methods for remediating contaminants in a stream.Type: GrantFiled: March 31, 1999Date of Patent: January 15, 2002Assignee: Apyron Technologies, Inc.Inventors: Mark L. Moskovitz, Bryan E. Kepner
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Patent number: 6331503Abstract: The method of the present invention involves the in situ formation of metal-molybdate catalyst particles active for methanol oxidation to formaldehyde, with iron as an example, the catalyst is made by mixing particulate forms of Fe2O3 and MoO3 which form an active Fe2(MoO4)3/MoO3 component inside the reactor during methanol oxidation.Type: GrantFiled: April 6, 1999Date of Patent: December 18, 2001Assignee: Lehigh UniversityInventors: Israel E. Wachs, Laura E. Briand
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Patent number: 6313064Abstract: A copper alloy comprising 0.1-7.3% of titanium and optionally comprising one or more of zinc, silicon and silver in amounts of 0.001-10%, 0.001-3% and 0.001-1%, respectively, wherein its surface layer contains an oxide containing titanium. This copper alloy exhibits sterilizing effect based on copper and antibacterial effect based on optical catalyst function resulting from the oxide which contains titanium dispersed in the surface layer. The oxide containing titanium can be produced by heating the copper alloy which has the above-mentioned composition and is produced in the usual manner to 200-800° C. to oxidize titanium preferentially. In the case that zinc and silicon are contained, these elements are also preferentially oxidized by the heating, so as to produce oxides. Thus, zinc exhibits antibacterial effect and sterilizing effect. Silicon exhibits hydrophilicity. Silver exhibits sterilizing effect.Type: GrantFiled: June 25, 1999Date of Patent: November 6, 2001Assignee: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Motohisa Miyafuji, Yoshinobu Tsuzaki, Sadako Yamada, Takenori Nakayama, Wataru Urushihara