And Group Viii Metal Containing (i.e., Iron Or Platinum Group) Patents (Class 502/213)
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Patent number: 7148176Abstract: The present invention is directed to phosphine ligands and the use of such ligands in catalytic complexes with transition metals. The catalysts may be used in a variety of reactions and are especially useful for refining halogenoaromatics.Type: GrantFiled: July 27, 2001Date of Patent: December 12, 2006Assignee: Degussa AGInventors: Matthias Beller, Wilhelm Hubert Ehrentraut, legal representative, Theresia Elisabeth Ehrentraut, legal representative, Christa Fuhrmann, Alexander Zapf, Andreas Ehrentraut, deceased
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Patent number: 7108804Abstract: In one aspect, the invention provides a catalyst for the production of synthesis gas, the catalyst comprising a) from about 0.1 to about 1.3% by weight of nickel that is supported on modified support, and b) a promoting agent. The catalyst can also comprise a dispersing agent. In another aspect, the invention provides a process for preparing the catalyst above, and a process for the catalytic partial oxidation of methane using the same catalyst.Type: GrantFiled: June 12, 2003Date of Patent: September 19, 2006Assignees: National University of Singapore, ABB Lummus Global Inc.Inventors: Yong Lu, Luwei Chen, Jianyi Lin, Frits M. Dautzenberg
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Patent number: 7094727Abstract: Provided is a novel heteropolyacid catalyst useful for partial oxidation of methacrolein (MACR) to methacrylic acid (MAA), as represented by the following formula 1: PMoaAbBcCdDeEfOg??(1) wherein A, B, C, D, E, a, b, c, d, e, f, and g are as defined in the specification. Provided is also a method for producing the heteropolyacid catalyst. The heteropolyacid catalyst produced by the method exhibits excellent catalyst activity in terms of conversion rate, selectivity, and yield.Type: GrantFiled: December 30, 2004Date of Patent: August 22, 2006Assignee: LG Chem, Ltd.Inventors: Gyo-hyun Hwang, Won-ho Lee, Min-ho Kil
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Patent number: 7074739Abstract: The invention relates to a process for producing alkylated aromatic hydrocarbons, preferably with an oxygen or sulfur containing alkylating agent, in the presence of a multi-component molecular sieve catalyst composition that includes a molecular sieve and an active metal oxide. The invention is also directed to methods of making and formulating the multi-component molecular sieve catalyst composition useful in producing alkylated aromatics.Type: GrantFiled: November 19, 2002Date of Patent: July 11, 2006Assignee: ExxonMobil Chemical Patents Inc.Inventors: Jihad Mohammed Dakka, James Clarke Vartuli, John Scott Buchanan, Jose G. Santiesteban, Doron Levin
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Patent number: 7074740Abstract: An improved catalyst for hydrodesulfurization of heavy feedstocks is disclosed. The catalyst is adopted for on-stream catalyst replacement in upflow processing units. It is characterized by a smaller peak pore diameter than general purpose hydrotreating catalysts.Type: GrantFiled: July 2, 2002Date of Patent: July 11, 2006Assignee: Chevron U.S.A. Inc.Inventors: Kirk R. Gibson, Richard Threlkel, Pak C. Leung
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Patent number: 7071371Abstract: A gel composition substantially contained within the pores of a solid material is disclosed for use as a catalyst or as a catalyst support in dehydrogenation and dehydrocyclization processes.Type: GrantFiled: November 21, 2003Date of Patent: July 4, 2006Assignee: E. I. du Pont de Nemours and CompanyInventors: Kostantinos Kourtakis, Leo E. Manzer
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Patent number: 7067685Abstract: The invention relates to phosphinites I of formulae (1) or (2), in which R1, R2, R5, R6, R7, R8, R9 independently represent hydrogen, an alkyl or alkylene group having 1 to 8 carbon atoms or an alkoxy group having 1 to 8 carbon atoms; R3 is H or methyl; R4 is i-propyl or t-butyl; X is F, Cl or CF3 and n is 1 or 2Type: GrantFiled: October 4, 2002Date of Patent: June 27, 2006Assignee: BASF AktiengesellschaftInventors: Michael Bartsch, Robert Baumann, Dagmar Pascale Kunsmann-Keitel, Gerd Haderlein, Tim Jungkamp, Marco Altmayer, Wolfgang Siegel, Ferenc Molnar
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Patent number: 7060857Abstract: In a process for preparing 3-aminomethyl-3,5,5-trimethylcyclohexylamine (isophoronediamine, IPDA) having a cis/trans isomer ratio of at least 70/30 from 3-cyano-3,5,5-trimethylcyclohexanone (isophoronenitrile, IPN), NH3 and H2, the hydrogenation is carried out at from 50 to 200° C. and a pressure of from 50 to 300 bar in the presence of a hydrogenation catalyst having an alkali metal content of ?0.03% by weight, calculated as alkali metal oxide referring to the total weight of the catalyst. The alkali metal content is made up of the contents of Li, Na, K, Rb and Cs; in particular, the alkali metal content is the Na content. A process for producing hydrogenation catalysts having an alkali metal content (in particular a sodium content) of ?0.03% by weight, calculated as alkali metal oxide/sodium oxide referring to the total weight of the catalyst, and the hydrogenation catalysts themselves are also provided by the invention.Type: GrantFiled: August 28, 2002Date of Patent: June 13, 2006Assignee: BASF AktiengesellschaftInventors: Frank Funke, Thomas Hill, Johann-Peter Melder, Ekkehard Schwab, Walter Himmel, Erhard Henkes, Hermann Petersen, Reinhard Körner
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Patent number: 7041619Abstract: Phosphonium salts represented by the general formula (I) wherein R1 and R2 each represents a phenyl group which may be substituted by a lower alkyl group, R3 represents a phenylene group which may be substituted by a lower alkyl group, R7 and R8 each represents a hydrogen atom or a hydrocarbon group having 1 to 12 carbon atoms which may be substituted and R9 represents a hydrogen atom or a hydrocarbon group having 1 to 5 carbon atoms which may be substituted; processes for producing the same and uses for the same; phosphines providing the same, and processes for producing said phosphines.Type: GrantFiled: July 22, 2004Date of Patent: May 9, 2006Assignee: Kuraray Co., Ltd.Inventors: Kazuyuki Yada, Kenji Shimoyamada, Masahiro Muranaka, Junichi Fuji, Shigeaki Suzuki
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Patent number: 7015172Abstract: A photo-catalyst comprising a compound having structure composing a network formed by mutual connection of an unit constructing oxygen octahedra or tetrahedra containing a transition metal ion or a typical metallic ion in d10 or d0 configuration and an unit constructing PO4 tetrahedron connected to said oxygen octahedra or tetrahedra, further containing an alkali metal besides said metallic ion as a consituent element, for example, AXNb2mP4O6m+8 (wherein A is Na, K or Li, X is 2, 3 or 4 and m is 3, 3.5 or 4) AXTa2mP4O6m+8 (wherein A is Na, K or Li, X is 2, 3 or 4 and m is 3, 3.5 or 4) AXIn2mP4O6m+8 (wherein A is Na, K or Li, X is 2, 3 or 4 and m is 3, 3.5 or 4) and RuO2 is loaded on the compound. The photo-catalyst can be used for the complete decomposition of water.Type: GrantFiled: June 12, 2002Date of Patent: March 21, 2006Assignee: Japan Science and Technology AgencyInventor: Yasunobu Inoue
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Patent number: 7015360Abstract: This invention relates to asymmetric hydroformylation (hf) processes in which a prochiral or chiral compound is contacted in the presence of an optically active metal-ligand complex catalyst to produce an optically active aldehyde or product derived from an optically active aldehyde. The invention encompasses novel ligands and catalysts for use in such processes.Type: GrantFiled: March 28, 2003Date of Patent: March 21, 2006Assignee: Dow Global Technologies, Inc.Inventors: Gregory Todd Whiteker, Jerzy Klosin, Kelli Jo Gardner
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Patent number: 6992037Abstract: One aspect of the invention relates to catalyst composite containing a metal catalyst and a specifically defined carbon support containing a carbonaceous material. For example, the carbon support may have a total pore surface area of about 800 m2/g or more and about 2,000 m2/g or less where about 20% or less of the total pore surface area is micro pore surface area. Alternatively the carbon support may have a total pore volume of at least about 0.75 cc/g where about 15% or less of the total pore volume is micro pore volume. In yet another aspect of the invention, the carbon support may have a phosphorus content of about 0.75% by weight or less. In still yet another aspect of the invention, a methods of making and using the catalyst composite are disclosed.Type: GrantFiled: September 17, 2001Date of Patent: January 31, 2006Assignee: Engelhard CorporationInventors: Jian Ping Chen, Charles R. Penquite, Deepak S. Thakur
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Patent number: 6984310Abstract: Alumina having a pore structure characterized by the absence of macropores, no more than 5% of the total pore volume in pores greater than 350 ?, a high pore volume (greater than 0.8 cc/g measured by mercury intrusion) and a bi-modal pore volume distribution character, where the two modes are separated by 10 to 200 ?, and the primary pore mode is larger than the median pore diameter (MPD), calculated either by volume or by surface area, the MPD by volume being itself larger than the MPD by surface area. Also provided are catalysts made from and processes using such alumina.Type: GrantFiled: December 17, 2002Date of Patent: January 10, 2006Assignee: Shell Oil CompanyInventors: Josiane M. Ginestra, Russell C. Ackerman, Christian G. Michel
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Patent number: 6927262Abstract: The invention relates to novel bridged biphosphole ligands according to the general formula: where R2, R3, R4 are chosen from hydrogen, alkyl, aryl or silyl, R1 is chosen from hydrogen, alkyl, aryl or halogen, R1 possibly being replaced with a direct bond between the two phosphorus atoms and T is a divalent group. The invention also relates to metallocenes obtained from these ligands. These metallocenes are useful as catalytic components for the polymerization of olefins.Type: GrantFiled: January 25, 2002Date of Patent: August 9, 2005Assignee: AtofinaInventors: Francois-Xavier Buzin, Francois Nief, Francois Mathey, Jean Malinge, Eliane Deschamps, Bernard Deschamps
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Patent number: 6916954Abstract: The invention relates to a catalyst system for carbonylating olefinically or acetylenically unsaturated compounds with carbon monoxide and a nucleophile compound, containing (a) palladium; (b) a phosphine and (c) a polymer containing nitrogen which is soluble in the reaction mixture, with the exception of polyvinyl polymers with aromatic radicals containing nitrogen on the polymer chain. The invention also relates to a method for carbonylation in the presence of one such catalyst system.Type: GrantFiled: September 25, 2001Date of Patent: July 12, 2005Assignee: BASF AktiengesellschaftInventors: Martin Schäfer, Michael Slany, Edgar Zeller, Michael Röper, Michael Schulz, Günther Grimm
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Patent number: 6903047Abstract: The present invention concerns a method for enhancing the activity of vanadium phosphorus oxide (VPO) catalysts. Promoter reagents are grafted onto or reacted with the catalyst surface. An optional calcination and activation heating cycle transforms the catalyst precursor into a final active phase. A preferred VPO catalyst produced has a ratio of molybdenum to vanadium on the surface of the catalyst to molybdenum to vanadium in the overall bulk of the catalyst represented by the equation (Mo/V) Surface?1.10 (Mo/V) overall bulk.Type: GrantFiled: January 16, 2001Date of Patent: June 7, 2005Assignee: E.I. du Pont de Nemours and CompanyInventors: Kostantinos Kourtakis, Pratibha Laxman Gai
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Patent number: 6903048Abstract: A method for producing a hydrorefining catalyst has the steps of preparing an impregnation solution containing molybdenum, phosphorus, cobalt and/or nickel, and citric acid, bringing a carrier into contact with the impregnation solution, and then calcinating the carrier in an oxidizing atmosphere at a temperature at which citric acid is removed. In the impregnation solution, a molar ratio of molybdenum/phosphorus is 6 to 13, a molar ratio of (cobalt and nickel)/phosphorus is 0.5 to 7, and a molar ratio of (cobalt and nickel)/citric acid is 0.5 to 2. As for the hydrorefining catalyst obtained by this method, the activity of the catalyst is high, and the catalyst life is long.Type: GrantFiled: June 27, 2002Date of Patent: June 7, 2005Assignee: Japan Energy CorporationInventors: Yoshiki Iwata, Chikanori Nakaoka, Yasuhito Goto
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Patent number: 6897275Abstract: Transition metal complexes of selected monoanionic phosphine ligands, which also contain a selected Group 15 or 16 (IUPAC) element and which are coordinated to a Group 3 to 11 (IUPAC) transition metal or a lanthanide metal, are polymerization catalysts for the (co)polymerization of olefins such as ethylene and ?-olefins, and the copolymerization of such olefins with polar group-containing olefins. These and other nickel complexes of neutral and monoanionic bidentate ligands copolymerize ethylene and polar comonomers, especially acrylates, at relatively high ethylene pressures and surprisingly high temperatures, and give good incorporation of the polar comonomers and good polymer productivity. These copolymers are often unique structures, which are described.Type: GrantFiled: May 31, 2001Date of Patent: May 24, 2005Assignee: E. I. du Pont de Nemours and CompanyInventors: Lin Wang, Elisabeth Hauptman, Lynda Kaye Johnson, Elizabeth Forrester McCord, Ying Wang, Steven Dale Ittel
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Patent number: 6893996Abstract: A process for preparing a hydrocyanation catalyst comprising contacting a bidentate phosphorous-containing ligand with a molar excess of nickel chloride in the presence of a nitrile solvent and a reducing metal which is more electropositive than nickel. Preferably, the nickel chloride is dried before use.Type: GrantFiled: November 26, 2001Date of Patent: May 17, 2005Assignee: Invista North America S.A.R.L.Inventors: Luis A. Chu, Lucy M. Clarkson, Norman Herron, Ronald J. McKinney, Kenneth G. Moloy, Zeru Tekie
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Patent number: 6884751Abstract: Hydrocyanation catalysts comprising aqueous solutions of at least one water-soluble phosphine and nickel values, well suited for the hydrocyanation of ethylenically unsaturated organic compounds such as diolefins, olefinic nitrites and monolefins, are produced by (a) admixing an aqueous solution of such at least one water-soluble phosphine with a nickel hydroxide, (b) adding hydrogen cyanide or a compound which generates hydrogen cyanide to the mixture thus formed, (c) stirring the resulting mixture until the nickel values have at least partially dissolved, and (d) reducing at least a portion of said nickel values having an oxidation state of greater than zero to the zero oxidation state.Type: GrantFiled: June 22, 2001Date of Patent: April 26, 2005Assignee: Rhodia Feber & Resin IntermedaitesInventors: Paolo Burattin, Pierre Coqueret, Marc Huser
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Patent number: 6864212Abstract: Bismuth- and phosphorus-containing naphtha reforming catalysts, methods of making such catalysts, and a naphtha reforming process using such catalysts.Type: GrantFiled: August 8, 2002Date of Patent: March 8, 2005Assignee: Shell Oil CompanyInventor: Peter Tanev
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Patent number: 6858561Abstract: A process for preparing a catalyst for maleic anhydride production wherein a +5 vanadium compound such as V2O5, an anhydrous phosphoric acid, and optionally promoters are admixed in an organic alcohol solvent, the admixture is rapidly brought to reflux and thereafter refluxed to reduced the vanadium compound to the desired degree, the reflux mixture is cooled, precursor crystals are separated by filtration and then dried and calcined.Type: GrantFiled: May 15, 2003Date of Patent: February 22, 2005Assignees: Scientific Design Company, Inc., Lonza S.p.A.Inventors: Arie Bortinger, Gianluca Mazzoni, Tiziana Monti
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Patent number: 6841499Abstract: A supported catalyst comprises a cationic rhodium(I) complex of the formula wherein R1 and R2 are the same or different hydrocarbon groups of up to 30 C atoms, or R1 and R2 are linked to form a ring, and a heterogeneous support medium that provides anionic binding sites. Such a complex is particularly useful as a catalyst in a process of hydrogenating an aldehyde to produce the corresponding primary alcohol.Type: GrantFiled: October 6, 2000Date of Patent: January 11, 2005Assignee: Chirotech Technology LimitedInventors: Mark Joseph Burk, Arne Gerlach
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Patent number: 6831035Abstract: Disclosed are novel catalyst systems comprising (1) a diorgano fluorophosphite ligand; (2) rhodium, wherein the ratio of gram moles fluorophosphite ligand (1) to gram atoms of rhodium is at least 1:1; and (3) a Group VIII metal, other than rhodium, or Group VIII metal-containing compound, in an amount effective to reduce the formation of HF during the use of the catalyst system. The presence of the other Group VIII metal decreases the amount of hydrogen fluoride produced during the use of the catalyst system. The hydrogen fluoride originates from very low level degradation of the ligand. Also disclosed are novel catalyst solutions of the aforesaid catalyst system and the use of the catalyst system in the hydroformylation of olefins to produce aldehydes.Type: GrantFiled: January 22, 2002Date of Patent: December 14, 2004Assignee: Eastman Kodak CompanyInventors: Thomas Allen Puckette, Ginette Struck Tolleson
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Patent number: 6812306Abstract: Metal compounds of the formula I, where M is selected from among Ni and Pd in the oxidation state +II can be used for the polymerization or copolymerization of olefins. Supported catalysts for the polymerization and copolymerization of olefins can be obtained by application of one or more of the above-described ionic metal compounds to a support.Type: GrantFiled: January 2, 2003Date of Patent: November 2, 2004Assignee: BASF AktiengesellschaftInventors: Marc Oliver Kristen, Peter Hofmann, Frank Eisenträger
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Patent number: 6812188Abstract: The present invention relates to a catalyst for producing methacrylic acid by the vapor-phase catalytic oxidation of methacrolein, comprising Mo, V, P and Cu as the indispensable active components, wherein copper acetate is used for all or a part of the necessary amount of a material for said Cu, a coated catalyst and a method for manufacturing the coated catalyst, and methacrolein is reacted in a high conversion and methacrylic acid is produced in a high selectivity by use of the catalyst of the present invention, and the catalyst can be used for reaction under high loading condition.Type: GrantFiled: March 13, 2003Date of Patent: November 2, 2004Assignee: Nippon Kayaku Kabushiki KaishaInventors: Yoshimasa Seo, Atsushi Sudo, Hideki Sugi
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Publication number: 20040204313Abstract: A photo-catalyst comprising a compound having structure composing a network formed by mutual connection of an unit constructing oxygen octahedra or tetrahedra containing a transition metal ion or a typical metallic ion in d10 or d0 configuration and an unit constructing PO4 tetrahedron connected to said oxygen octahedra or tetrahedra, further containing an alkali metal besides said metallic ion as a consituent element, for example,Type: ApplicationFiled: December 23, 2003Publication date: October 14, 2004Inventor: Yasuhobu Inoue
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Publication number: 20040176244Abstract: An orthorhombic phase mixed metal oxide is produced selectively in quantitative yield.Type: ApplicationFiled: March 23, 2004Publication date: September 9, 2004Inventors: Leonard Edward Bogan, Daniel A. Bors, Fernando Antonio Pessoa Cavalcanti, Michael Bruce Clark, Anne Mae Gaffney, Scott Han
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Patent number: 6780817Abstract: A hydrorefining catalyst of a hydrogenation active metal component supported on a refractory porous carrier has a median pore diameter determined by the nitrogen adsorption method of 8 to 20 nm, a pore volume determined by the nitrogen adsorption method of 0.56 cm3/g or greater, and a pore volume of pores with a pore diameter of 50 nm or larger determined by the mercury intrusion porosimetry method of 0.32 cm3/g or greater. Both the demetallizing activity and metal deposition capacity of the catalyst in hydrogenation and demetallizing of heavy oil are high. The hydrorefining catalyst is obtained by kneading a porous starting powder principally composed of &ggr;-alumina and having a pore capacity of 0.75 m3/g or larger and a mean pore diameter of 10 to 200 &mgr;m, molding and calcining, and supporting an active metal component on the product.Type: GrantFiled: August 8, 2000Date of Patent: August 24, 2004Assignee: Japan Energy CorporationInventors: Hiroki Koyama, Toru Saito, Hideaki Kumagai
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Patent number: 6777510Abstract: Rational combinatorial computational methods use accurate quantum mechanical and molecular modeling techniques to identify optimum polymerization catalysts for polar olefins. Using mechanistic information to model the polymerization reaction, the methods systematically vary components of a catalyst template to calculate a potential energy surface for a number of catalyst candidates. The potential energy surfaces are compared to identify a catalyst for the catalytic polymerization reaction. Internal Lewis acid single site polar olefin polymerization catalyst compositions and compounds for polymerizing polar olefins are also described.Type: GrantFiled: September 12, 2001Date of Patent: August 17, 2004Assignee: California Institute of TechnologyInventors: Dean M. Philipp, Richard P. Muller, William A. Goddard, III
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Patent number: 6777369Abstract: The present invention relates to the effective utilization of a used catalyst containing at least molybdenum, an A element (at least one element selected from the group consisting of phosphorus and arsenic) and an X element (at least one element selected from the group consisting of potassium, rubidium and cesium), and provides a process for producing a catalyst, which comprises dispersing said used catalyst in water, adding thereto an alkali metal compound and/or ammonia solution, adjusting the resulting mixture to pH 6.5 or less to generate a precipitate containing at least molybdenum and the A element, and using the precipitate as a material for catalyst-constituting elements.Type: GrantFiled: November 19, 2001Date of Patent: August 17, 2004Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Toru Kuroda, Seiichi Kawato, Masanori Nitta, Hideyasu Takezawa
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Patent number: 6774195Abstract: A catalyst composition and process for preparing norbornene-type homopolymers or copolymers. The norbornene-type homopolymers or copolymers can be prepared using an in-situ catalyst composition including: (a) a transition metal compound of ML4, wherein M is a Group 10 metal and L is a neutral electron donor ligand; (b) a hydrocarbyl halogen containing a double bond or a triple bond; and (c) a salt of a non or weakly coordinative anion that can replace a halogen bonded to a metal. The catalyst composition is in a mixing state of components (a), (b), and (c), or in a mixing state of a reaction product of components (a) and (b) together with component (c).Type: GrantFiled: July 2, 2002Date of Patent: August 10, 2004Assignee: Industrial Technology Research InstituteInventors: Ting-Yu Lee, Meei-Yu Hsu, Mei-Hua Wang
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Patent number: 6770590Abstract: An exhaust gas emission purifying catalyst has a catalyst layer (20) supported on a carrier (10). The catalyst layer includes a composite oxide, in which noble metals and occluding agents are mixed in order to inhibit the movement of the occluding agents even at high temperatures and to prevent deterioration of the purifying performance of the catalyst after operation at a high temperature. The composite oxide is comprised of silicon (Si) and at least one of cobalt (Co), zirconium (Zr), iron (Fe), and manganese (Mn).Type: GrantFiled: June 7, 2002Date of Patent: August 3, 2004Assignee: Mitsubishi Jidosha Kogyo Kabushiki KaishaInventor: Tetsuya Watanabe
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Patent number: 6734319Abstract: A process for the separation a substantially adduct-free diaryl carbonate from reaction solution is disclosed. The process entails obtaining a solution that contains diaryl carbonate, catalyst system components and an aromatic solvent, lowering the temperature of the solution, optionally in the presence of a nucleating agent, to produce a crystallization product, and washing the crystallization product with an anhydrous wash solution to remove catalyst residues and impurities.Type: GrantFiled: August 21, 2002Date of Patent: May 11, 2004Assignee: Bayer AktiengesellschaftInventors: Claus-Peter Reisinger, Sven Michael Hansen, Peter Fischer, Hans-Peter Wirges
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Patent number: 6717018Abstract: A process for producing oxygenated products from an olefinic feedstock, which process includes reacting, in a hydroformylation reaction stage, an olefin feedstock with carbon monoxide and hydrogen at elevated temperature and superatmospheric pressure in the presence of a hydroformylation catalyst. The hydroformylation catalyst comprises a mixture of a metal, M, where M is cobalt (Co), rhodium (Rh), ruthenium (Ru) or palladium (Pd); carbon monoxide; and a bicyclic tertiary phosphine having a ligating phosphorus atom. The ligating phosphorus atom is neither in a bridgehead position nor a member of a bridge linkage. The process produces oxygenated products comprising aldehydes and/or alcohols.Type: GrantFiled: February 5, 2003Date of Patent: April 6, 2004Assignee: Sasol Technology (Proprietary) LimitedInventors: Jan Petrus Steynberg, Khedaren Govender, Petrus Johannes Steynberg
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Patent number: 6710009Abstract: Catalysts useful for producing methylamines and having practical catalyst life and large selectivity for dimethylamine comprise crystalline silicoaluminophosphate molecular sieves which have a molar ratio of silicon atom to aluminum atom in the range of 0.01-0.30.Type: GrantFiled: July 10, 2002Date of Patent: March 23, 2004Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Toshio Hidaka, Katsumi Higuchi, Takeshi Kawai
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Publication number: 20040054222Abstract: The invention relates to a method for the heterogenically catalysed gas-phase partial oxidation of precursor compounds of (meth)acrylic acid in a fixed catalyst bed, containing as the catalyst an activated mass of mixed oxide, shaped to form a geometric body. Said geometric body is a geometric base body, into whose surface a cavity is incorporated.Type: ApplicationFiled: July 15, 2003Publication date: March 18, 2004Inventors: Raimund Felder, Signe Unverricht, Heiko Arnold, Jochen Petzoldt
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Patent number: 6706656Abstract: The invention provides a process for an improved oxirane hydroformylation catalyst, the improved oxirane hydroformylation catalyst, and a one step process for preparing a 1,3-diol in the presence of such a catalyst. One process for preparing the hydroformylation catalyst involves: a) forming a complex (A) by contacting a ruthenium(0) compound with a ditertiary phosphine ligand; and b) forming a complex (B) by subjecting complex (A) to a redox reaction with a cobalt(0) carbonyl compound. This catalyst is used in a one step hydroformylation process for preparing a 1,3-diol, comprising the reaction of an oxirane with syngas at hydroformylation conditions in an inert solvent in the presence of the above hydroformylation catalyst where recovery of product is preferably accomplished via phase separation of a diol rich phase from the bulk reaction liquor.Type: GrantFiled: April 23, 2002Date of Patent: March 16, 2004Assignee: Shell Oil CompanyInventors: John Frederick Knifton, Lynn Henry Slaugh, Paul Richard Weider, Talmadge Gail James, Joseph Broun Powell, Kevin Dale Allen, Timothy Scott Williams
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Patent number: 6696388Abstract: A gel composition substantially contained within the pores of a solid material for use as a catalyst or as a catalyst support in dehydrogenation and dehydrocyclization processes.Type: GrantFiled: January 10, 2001Date of Patent: February 24, 2004Assignee: E. I. du Pont de Nemours and CompanyInventors: Kostantinos Kourtakis, Leo E. Manzer
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Patent number: 6689712Abstract: A hydrorefining catalyst containing a metal belonging to group VIB of the Periodic Table and phosphorus is made by bringing the supporting liquid into contact with a porous carrier formed of inorganic oxide. The supporting liquid is an aqueous solution of a metal belonging to group VIB of the Periodic Table, a phosphorus compound, a hydroxycarboxylic acid, and hydrogen peroxide added to water. Thee hydroxycarboxylic acid content of the supporting liquid is such that molar ratio of group VIB metal:hydroxycarboxylic acid is 1:0.05 to 1:1 and the hydrogen peroxide content of the supporting liquid is such that molar ratio of group VIB metal:hydrogen peroxide is 1:0.03 to 1:1. The catalyst made with the supporting liquid has excellent desulfurization activity.Type: GrantFiled: October 19, 2001Date of Patent: February 10, 2004Assignee: Japan Energy CorporationInventor: Hideo Tanaka
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Patent number: 6664206Abstract: This invention provides a method of reactivating a catalyst for methacrylic acid production, which catalyst is used in production of methacrylic acid through vapor-phase oxidation of methacrolein or vapor-phase oxidative dehydrogenation of isobutyric acid, contains P and Mo, and exhibits reduced activity. The process comprises treating the catalyst, whose activity level has dropped (deteriorated catalyst), with a gas containing a nitrogen-containing heterocyclic compound (e.g., pyridine, piperidine, piperazine, quinoline).Type: GrantFiled: September 21, 2001Date of Patent: December 16, 2003Assignee: Nippon Shokubai Co., Ltd.Inventors: Hiroto Kasuga, Eiichi Shiraishi
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Patent number: 6656349Abstract: The invention relates to a spherical catalyst composition comprising a Group VI metal component and optionally a Group VIII metal component on a carrier, which catalyst has a particle size of 0.5-7 mm, a total pore volume of 0.5-1.3 ml/g, an average pore diameter of 15-30 nm, and a % PV(>100 nm) of 2-30%, there being substantially no difference in density between the core region of the carrier particles and their surface regions. The catalyst is particularly suitable for use in non-fixed bed processes for the hydroprocessing of heavy hydrocarbon feeds. It has high hydrodesulfurization and hydrodemetallization activity in combination with a high abrasion resistance.Type: GrantFiled: November 13, 2000Date of Patent: December 2, 2003Assignees: Nippon Ketjen Co., Ltd., Akzo Nobel N.V.Inventors: Katsuhisa Fujita, Masafumi Shimowake, Tetsuro Kamo
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Publication number: 20030220193Abstract: Bismuth- and phosphorus-containing naphtha reforming catalysts, methods of making such catalysts, and a naphtha reforming process using such catalysts.Type: ApplicationFiled: August 8, 2002Publication date: November 27, 2003Inventor: Peter Tanev
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Publication number: 20030216253Abstract: The invention pertains to new catalyst systems for polycondensation reactions, for example for producing polyethylene terephthalate. In accordance with the invention, complex compounds with hydrotalcite-analogous structures of general formula [M(II)1−xM(III)x(OH)2]x+(An−x/n).mH2O are used, wherein M(II) represents divalent metals, preferably Mg or Zn or NI or Cu or Fe(II) or Co, and M(III) represents trivalent metals, for example Al or Fe(III), and A represents anions, preferably carbonates or borates. These catalysts can be calcinated and can be used in combination with phosphorus compounds that contain at least one hydrolyzable phosphorus-oxygen bond.Type: ApplicationFiled: October 25, 2002Publication date: November 20, 2003Inventors: Jens-Peter Wiegner, Rolf Eckert, Volkmar Voerckel, Gutner Feix, Marion Sela, Sarat Munjal
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Patent number: 6627577Abstract: There is provided catalysts and conversion processes for converting hydrocarbons using the catalysts. The catalysts comprises a first alumino-phosphospho-molecular sieves and a binder comprising a second alumino-phopho-molecular sieves. Exemplary conversion processes include the conversion of oxygenates to olefins, dewaxing, reforming, dealkylation, dehydrogenation, transalkylation, alkylation, and isomerization.Type: GrantFiled: May 31, 2002Date of Patent: September 30, 2003Assignee: ExxonMobil Chemical Patents Inc.Inventors: Robert Scott Smith, Gary David Mohr, Jannetje Maatje van den Berge
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Patent number: 6624326Abstract: A novel method for preparing a heteropolyacid catalyst containing a heteropolyacid composed of molybdophosphoric acid and/or molybdovanadophosphoric acid, or a salt of the heteropolyacid, is provided. The method comprises preparing an aqueous solution or aqueous dispersion which (1) contains the nitrogen-containing heterocyclic compound, nitrate anions and ammonium ions, (2) the ammonium ion content not exceeding 1.7 mols per mol of the nitrate anion content, and (3) the ammonium ion content not exceeding 10 mols per 12 mols of the molybdenum atom content by mixing raw materials containing the catalyst-constituting elements with the nitrogen-containing heterocyclic compound in the presence of water, drying and calcining the same. This heteropolyacid catalyst excels over conventional catalysts in performance, life and strength.Type: GrantFiled: May 29, 2002Date of Patent: September 23, 2003Assignee: Nippon Shokubai Co., Ltd.Inventors: Hiroto Kasuga, Kaori Nakatani, Eiichi Shiraishi
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Patent number: 6617279Abstract: Hydroxyaromatic compounds such as phenol are carbonylated with oxygen and carbon monoxide in the presence of a catalyst system comprising a Group VIIIB metal, preferably palladium; an iodide salt, preferably sodium iodide; and at least one organic bisphosphine such as 1,3-bis(diphenylphosphino)propane or 1,4-bis(diphenylphosphino)butane. The catalyst system also preferably contains a compound of cerium or lead.Type: GrantFiled: February 12, 2001Date of Patent: September 9, 2003Assignee: General Electric CompanyInventors: Ben Purushotam Patel, Grigorii Lev Soloveichik, John Yaw Ofori
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Patent number: 6596156Abstract: A SAPO-11 silicoaluminopihosphate molecular sieve, its preparation method, and a catalyst containing the same are disclosed. The X-ray diffraction data of the molecular sieve before removing the template by calcination are as listed in Table 1. The molar composition of this molecular sieve after removing the template by calcination expressed in anhydrous oxides is Al2O3: yP2O5: zSiO2, in which y has a value of 0.60-1.20, and z has a value of 0.05-1.3, characterized in that after removing the template by calcination, its X-ray diffraction data are as listed in Table 3, and that the crystal structures of the molecular sieve before and after removing the template by calcination are substantially the same. The catalyst is composed of 10-85% by weight of said SAPO-11 molecular sieve, 0.05-1.5% by weight of Pd or Pt, and the balance is alumina.Type: GrantFiled: September 5, 2001Date of Patent: July 22, 2003Assignees: China Petroleum and Chemical Corporation, Research Institute of Petroleum Processing, SinopecInventors: Fengmei Zhang, Yucming Liu, Xingtian Shu, Weidong Wang, Fengming Qin
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Publication number: 20030125198Abstract: Alumina having a pore structure characterized by the absence of macropores, no more than 5% of the total pore volume in pores greater than 350 Å, a high pore volume (greater than 0.8 cc/g measured by mercury intrusion) and a bi-modal pore volume distribution character, where the two modes are separated by 10 to 200 Å, and the primary pore mode is larger than the median pore diameter (MPD), calculated either by volume or by surface area, the MPD by volume being itself larger than the MPD by surface area. Also provided are catalysts made from and processes using such alumina.Type: ApplicationFiled: December 17, 2002Publication date: July 3, 2003Inventors: Josiane M. Ginestra, Russell C. Ackerman, Christain G. Michel
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Patent number: RE39074Abstract: The present invention relates to a process for the selective preparation of acetic acid from a gaseous feed comprising ethane, ethylene or mixtures thereof plus oxygen at elevated temperature, which comprises bringing the gaseous feed into contact with a catalyst comprising the elements Mo, Pd, X and Y in gram atom ratios a:b:c:d in combination with oxygen MoaPdbXcYd??(I) where the symbols X and Y have the following meanings: X is one or more elements selected from the group consisting of: Cr, Mn, Nb, Ta, Ti, V, Te and/or W, in particular Nb, V and W; Y is one or more elements selected from the group consisting of: B, Al, Ga, In, Pt, Zn, Cd, Bi, Ce, Co, Cu, Rh, Ir, Au, Ag, Fe, Ru, Os, K, Rb, Cs, Mg, Ca, Sr, Ba, Zr, Hf, Ni, P, Pb, Sb, Si, Sn, TI and U, in particular Ca, Sb, Te and Li. The present invention further provides a catalyst for the selective preparation of acetic acid comprising the elements Mo, Pd, X and Y in the gram atom ratios a:b:c:d in combination with oxygen.Type: GrantFiled: July 16, 1997Date of Patent: April 18, 2006Assignee: Celanese Chemicals Europe GmbHInventors: Holger Borchert, Uwe Dingerdissen