Silicon Containing Or Process Of Making Patents (Class 502/232)
- Of Group VII (i.e., Mn, Tc or Re) (Class 502/241)
- Of Group IV (i.e., Ti, Zr, Hf, Ge, Sn or Pb) (Class 502/242)
- Of Group I (i.e., Alkali, Ag, Au or Cu) (Class 502/243)
- Of Group V (i.e., V, Nb, Ta, As, Sb or Bi) (Class 502/246)
- Of Group II (i.e., alkaline earth, Be, Mg, Zn, Cd or Hg) (Class 502/250)
- Of Group VI (i.e., Cr, Mo, W or Po) (Class 502/254)
- Of Group VIII (i.e., iron or platinum group) (Class 502/258)
- Of Group III or lanthanide group (i.e., Sc, Y, Al, Ga, In, Tl, or atomic number 57 to 71 inclusive) (Class 502/263)
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Publication number: 20020147107Abstract: Disclosed is a hydrogen generation process for use with fuel cells which includes a preferential oxidation step to reduce the concentration of carbon monoxide. The preferential oxidation step includes contacting a fuel stream comprising hydrogen and carbon monoxide in the presence of an oxygen at a preferential oxidation temperature of between about 70° and about 160° C. with preferential oxidation catalyst for reducing the concentration of carbon monoxide to produce a treated fuel gas stream comprising less than about 50 ppm-vol carbon monoxide. The preferential oxidation catalyst comprises ruthenium metal dispersed on a shaped alumina carrier, wherein at least 60 percent of the ruthenium metal is present in a band extending from the surface towards the center and having a width of about 50 percent of the distance from the surface to the center of the shaped alumina carrier. Superior performance at low preferential oxidation temperatures below 130° C.Type: ApplicationFiled: March 14, 2002Publication date: October 10, 2002Inventors: Suheil F. Abdo, Cynthia A. DeBoy, Geralyn F. Schroeder
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Patent number: 6458187Abstract: A shaped zeolite-containing body, e.g., zeolite-containing monoliths, having high compressive strength is prepared from a particular class of siloxane-based binders in combination with zeolite, plasticizing agent, and methylcellulose. It has been discovered that when using the particular class of siloxane binder with the aforementioned components, the body formed therefrom can be processed and calcined at temperatures below 300° C., thereby reducing costs typically seen with other processes for preparing shaped materials containing zeolite. The shaped bodies of this invention have been shown to have compressive strengths of at least 20 N/mm2 or more.Type: GrantFiled: November 6, 2000Date of Patent: October 1, 2002Assignee: Grace GmbH & Co. KGInventors: Hans-Gerhard Fritz, Christian Trefzger, Hans Hermann Höfer
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Patent number: 6455457Abstract: A supported catalyst system suitable for the polymerization of olefins prepared by a specific preparative route comprising optionally pretreating a support followed by addition of a neutral metal complex/activator solution. The metal complex may be a metallocene in particular a complex with trifluoromethanesulfonate ligands and the activator is a Lewis acid.Type: GrantFiled: January 7, 2000Date of Patent: September 24, 2002Assignee: BP Chemicals LimitedInventor: Christopher Sharp
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Patent number: 6432869Abstract: Moldings are disclosed for use as a catalyst or catalyst support for hydrating olefin, such as ethylene and propylene. The moldings are based on a pyrogenically produced mixed oxide having the following physicochemical parameters: External diameter 0.8-25 mm BET surface area 5-400 m2/g Pore volume 0.2-1.8 ml/g Fracture strength 5 to 350 N Composition At least two materials selected from the group of SiO2, Al2O3, TiO2 and ZrO2 in any desired combination, with the proviso that when the combination is a SiO2/Al2O3 mixed oxide, at least 75 wt. % of SiO2 is present based on the total weight of the mixed oxide. Other constituents <1 wt. % Bulk density 250-1500 g/l.Type: GrantFiled: September 22, 1999Date of Patent: August 13, 2002Assignee: Degussa AGInventors: Helmfried Krause, Hermanus Gerhardus Josef Lansink Rotgerink, Thomas Tacke, Helmut Mangold, Heike Riedemann, Manfred Fuchs
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Patent number: 6420306Abstract: An exhaust gas emission control catalyst includes an under catalyst layer containing at least one of barium and lanthanum and an over catalyst layer containing an agent for absorbing water in a gas, at least one of the under catalyst layer and over catalyst layer containing catalytic metal.Type: GrantFiled: November 30, 1998Date of Patent: July 16, 2002Assignee: Mazda Motor CorporationInventors: Takahiro Kurokawa, Akihide Takami, Makoto Kyogoku, Hideharu Iwakuni, Kenji Okamoto, Hirosuke Sumida, Kenichi Yamamoto, Hiroshi Murakami, Hiroshi Yamada
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Patent number: 6410665Abstract: The present invention relates to a catalyst system containing (a) at least one compound of the formula (II): where R are each a halogen or a C1-40 group; X are each a C1-40 haloalkylene, C6-40 arylene, C6-40 haloarylene, C7-40 arylalkylene, C7-40 haloarylalkylene, C2-40 alkynylene, a haloalkynylene group containing up to 40 carbon atoms, C2-40 alkenylene, or C2-40 haloalkenylene group; M are each an element of group IIa, IIIa, IVa, or Va of the Periodic Table of the elements; A is a cation of group Ia, IIa, IIIa of the Periodic Table of the Elements; a, b, or c is an interger from 0 to 10 and if a=0 then b=0; if a≧1 then a=b·c; d, f, or g is 0 or 1 and when d=0, g is 0; j is an integer from 1 to 5 and (b) at least one metallocene.Type: GrantFiled: December 3, 1999Date of Patent: June 25, 2002Assignee: Basell Polyolefine GmbHInventors: Cornelia Fritze, Frank Küber, Hans Bohnen
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Patent number: 6395847Abstract: The invention is directed to organometallic catalysts prepared by a process comprising a) combining nucleophilic group-containing particulate support material with an arylboron or arylaluminum Lewis acid compound in the presence of a Lewis base compound; b) contacting the product of a) with a trialkylaluminum compound before combining said product with a metal precursor compound capable of activation for olefin polymerization by said product a); and, c) combining the product of b) with said metal precursor compound. These catalyst compositions are suitable for addition reactions of ethylenically and acetylenically unsaturated monomers. The invention includes a polymerization process of combining or contacting olefinically unsaturated monomers with the invention catalyst composition. Use of the invention catalyst to polymerize &agr;-olefins is exemplified.Type: GrantFiled: November 19, 1999Date of Patent: May 28, 2002Assignee: ExxonMobil Chemical Patents Inc.Inventor: Main Chang
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Patent number: 6387844Abstract: A titanium dioxide film having at least photocatalytic activity, whose light linear transmittance corresponding to light having a wavelength of 550 nm is not less than 50 % and whose thickness is 0.1 to 5 &mgr;m or so, is formed on a transparent substrate constituted by a glass plate or the like. Preferably, a precoat film, which has optical transmissivity and is constituted by a SiO2 film having a thickness of 0.02 to 0.2 &mgr;m or so, is provided between the transparent substrate and the titanium dioxide film. Thereby, excellent photocatalytic action and optical transmissivity can be obtained. Moreover, members composing various structures such as a glass window, which are especially required to have optical transparency, can be further provided with photocatalytic activities.Type: GrantFiled: March 17, 1998Date of Patent: May 14, 2002Inventors: Akira Fujishima, Kazuhito Hashimoto, Tomokazu Iyoda, Shigemichi Fukayama, Tetsuo Yoshimoto, Tokuyoshi Saitoh
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Patent number: 6387842Abstract: This invention relates in part to a processes and catalysts for the conversion of a feedstock comprising carbon monoxide and hydrogen to a product stream comprising at least one of an ester, acid, acid anhydride and mixtures thereof. This invention also relates in part to processes and catalysts for converting an alcohol, ether and/or ether alcohol feedstock to oxygenated products, e.g., esters, acids, acid anhydrides and mixtures thereof. The processes and catalysts are especially suitable for the production of acetic acid and methyl acetate from a synthesis gas feedstock or from an alcohol, ether or ether alcohol feedstock.Type: GrantFiled: April 21, 2000Date of Patent: May 14, 2002Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Richard William Wegman, David Michael Minahan, William J. Bartley, Chinsoo Stephen Lee, David McNeill Somerville
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Patent number: 6372685Abstract: Silica powders and mixed silica-oxide powders and methods of preparing such powders for use as catalyst supports for polymerization processes.Type: GrantFiled: April 25, 2000Date of Patent: April 16, 2002Assignee: Chevron Phillips Chemical Company, LPInventors: Theresa A. Pecoraro, Ignatius Y. Chan, Darryl K. Whaley, Pamela R. Auburn
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Patent number: 6368994Abstract: A method for rapid polymerization, curing or a combination thereof of a polymerizable or curable composition to yield polymers and composites based on these polymers through the utilization of short wavelength microwave energy is described. The inventive method is generally applicable to the chemical transformation of any organic material that can be processed by heating. This invention also relates to specially prepared particulate polymerization curing materials which, when dispersed and irradiated in a polymerizable or curable composition, will effect rapid polymerization, curing or a combination of polymerization and curing of that composition without exceeding the decomposition temperature of the polymerizable or curable composition when the composition is exposed to microwave radiation. The polymerization agent may also be encapsulated by a material which coats the polymerization agent to prevent its premature release into the polymerizable or curable composition.Type: GrantFiled: December 27, 1999Date of Patent: April 9, 2002Assignee: Gyrorron Technology, Inc.Inventor: Vladislav E. Sklyarevich
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Patent number: 6365539Abstract: This invention is directed to novel Group 8-10 transition metal catalysts and to batch or continuous polymerizations using these catalysts. The catalysts of the present invention readily convert ethylene and &agr;-olefins to high molecular weight polymers, and allow for olefin polymerizations under various conditions, including ambient temperature and pressure, and in solution. Preferred catalysts are group 8-10 transition metals having certain dipyridyl ligands bonded thereto.Type: GrantFiled: May 23, 2000Date of Patent: April 2, 2002Assignee: Eastman Chemical CompanyInventors: James Allen Ponasik, Jr., Peter Borden Mackenzie, Christopher Moore Killian
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Publication number: 20020038062Abstract: There is disclosed a catalyst support for selective gas phase reactions in a tubular fixed bed reactor comprising a metallic monolith having channels the walls of which are adapted to receive a catalytically active phase or an intermediate layer acting as a carrier for a catalytically active phase. The monoliths are coated with catalytically active material and loaded lengthwise into tubular reactors, the channels being parallel to the length of the reactors. The catalysts are particularly useful in the chlorination/oxychlorination of alkenes and alkanes, and the oxidation of alkenes. Compared with the use of conventional catalysts in pellet form or in the form of ceramic monoliths the catalysts of the invention offer greater yields and selectivity, the avoidance of hot spots, greater catalyst life and flexibility in use.Type: ApplicationFiled: December 22, 2000Publication date: March 28, 2002Inventors: Diego Carmello, Andrea Marsella, Pio Forzatti, Enrico Tronconi, Gianpiero Groppi
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Patent number: 6355856Abstract: Catalyst based on molibden and silicon having a surface area ranging from 20 to 400 m2/g and a molar ratio Mo/Si>0.2 obtainable with a process which comprises: a) dissolving a soluble molibden salt in an aqueous solution containing at least one basic compound selected from ammonium hydroxides having general formula (I): R1R2R3R4N+OH− (I) b) adding to the solution of step (a) at least one compound of silicon capable of hydrolyzing to Sio2; c) gelifying and calcining the gel obtained.Type: GrantFiled: June 23, 1999Date of Patent: March 12, 2002Assignees: Agip Petroli S.p.A., EniTechnologies S.p.A.Inventors: Stefano Peratello, Angela Carati, Giuseppe Bellussi, Caterina Rizzo
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Patent number: 6353035Abstract: A process is disclosed for producing hydrocarbons by contacting a feed stream comprising hydrogen and carbon monoxide with a catalyst in a reaction zone maintained at conversion-promoting conditions effective to produce an effluent stream comprising hydrocarbons. The process is characterized by using a catalyst prepared by a method involving (1) forming a catalyst gel by destabilizing an aqueous colloid comprising (a) at least one catalytic metal for Fischer-Tropsch reactions (e.g., iron, cobalt, nickel and/or ruthenium), (b) colloidal cerium oxide, zirconium oxide, titanium oxide and/or aluminum oxide, and optionally (c) Al(OR)3, Si(OR)4, Ti(OR)4 and/or Zr(OR)4 where each R is an alkyl group having from 1 to 6 carbon atoms; and (2) drying the gel.Type: GrantFiled: February 21, 2001Date of Patent: March 5, 2002Assignee: Conoco Inc.Inventors: Leo E. Manzer, Kostantinos Kourtakis
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Patent number: 6333388Abstract: Described are an aluminum compound-containing solid catalyst component obtained by bringing a carrier into contact with an organoaluminumoxy compound, followed by bringing this product into contact with a compound having an electron attractive group; a transition metal-containing solid catalyst component obtained by bringing the aluminum compound-containing solid catalyst component into contact with a transition metal compound; a catalyst for olefin polymerization, constituting the aluminum compound-containing solid catalyst component and an organoaluminum compound; and a method for producing an olefin polymer, which includes polymerizing or copolymerizing an olefin using the catalyst for olefin polymerization.Type: GrantFiled: February 29, 2000Date of Patent: December 25, 2001Assignee: Sumitomo Chemical Company, LimitedInventors: Shin-ichi Kumamoto, Hiroaki Katayama, Akio Imai
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Publication number: 20010051759Abstract: Catalyst based on molibden and silicon having a surface area ranging from 20 to 400 m2/g and a molar ratio Mo/Si>0.Type: ApplicationFiled: June 23, 1999Publication date: December 13, 2001Inventors: STEFANO PERATELLO, ANGELA CARATI, GIUSEPPE BELLUSSI, CATERINA RIZZO
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Patent number: 6329313Abstract: The present invention relates to a supported chemical compound of the formula (I) in which Ac+ is a cation, c is an integer from 1 to 10, b is an integer ≧0, T is a support, y is an integer ≧1, a is an integer from 0 to 10, where a·y=c·b, and N is a unit of the formula (II) in which R independently at each occurrence is an identical or different substituent of M1 such as a halogen atom or a C1-C40 carbon-containing group, such as a C1-C40-alkyl, C1-C40-haloalkyl, C6-C40-aryl, C6-C40-haloaryl, C7-C40-arylalkyl or C7-C40-halo-arylalkyl group, X independently at each occurrence is identical or different and is a C1-C40 carbon-containing group, for example a divalent, carbon-containing group such as a C1-C40-alkylene, C1-C40-haloalkylene, C6-C4-arylene, C6-C40-haloarylene, C7-C40-arylalkylene or C7-C40-halo-arylalkylene, C2-C40-alkynylene, C2-C40-haloalkynylene, C2-C40-alkenylene or C2-C40haloalkenylene group, or a trivalent, carboType: GrantFiled: August 12, 1997Date of Patent: December 11, 2001Assignee: Basell Polyolefine GmbHInventors: Cornelia Fritze, Frank Küber, Hans Bohnen
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Patent number: 6329315Abstract: Frangible, spray dried agglomerate catalyst supports are provided, e.g. of silica gel, which possess a controlled morphology of microspheroidal shape, rough, scabrous appearance, and interstitial void spaces which penetrate the agglomerate surface and are of substantially uniform size and distribution. The agglomerates also possess a 1-250 micron particle size, 1-1000 m2/gm. surface area, and an Attrition Quality Index (AQI) of at least 10. The agglomerates are derived from a mixture of dry milled inorganic oxide particles, e.g. silica gel, and optionally but preferably wet milled inorganic oxide particles, e.g. silica gel particles, (which preferably contain a colloidal segment of <1 micron particles) slurried in water for spray drying. The high AQI assures that the agglomerates are frangible and that polymerization performance is improved.Type: GrantFiled: June 19, 1997Date of Patent: December 11, 2001Assignee: W. R. Grace & Co.-Conn.Inventors: Dean Alexander Denton, Michael J. Carney
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Patent number: 6316557Abstract: Provided area catalyst for polymerizing olefinic monomers, which comprises (a) a transition metal compound, (b) at least one member selected from clay, clay minerals and ion-exchanging layered compounds, (c) a silane compound, and optionally (d) an alkylating agent; a catalyst for polymerizing olefinic monomers, which comprises (a) a transition metal compound, (b) at least one member selected from clay, clay minerals and ion-exchanging layered compounds, (c) a silane compound, and optionally (e) an organic aluminum compound, and further optionally (d) an alkylating agent; and a method for producing olefinic polymers or styrenic polymers, which comprises homopolymerizing or copolymerizing olefinic or styrenic monomers in the presence of the catalyst for polymerizing olefinic monomers. The method does not require a large amount of aluminoxane, and the catalyst to be used therein has high polymerization activity.Type: GrantFiled: May 14, 1999Date of Patent: November 13, 2001Assignee: Idemitsu Petrochemical Co., Ltd.Inventors: Haruhito Sato, Toshiya Abiko, Satoshi Ikeuchi, Junichi Matsumoto, Harumi Nakashima
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Patent number: 6316383Abstract: Moldings based on silica having a hollow cylindrical configuration with internal reinforcing stays or spokes leading from an inner wall of a hollow cylinder to the center of the molding or in the form of miniliths having passageway channels therethrough, are produced by homogenizing silica with methyl hydroxyethyl cellulose, wax and/or polyethylene glycol. Water and optionally aqueous alkaline ammonia solution are added, and the mixture is subjected to kneading and forming, extruding, optionally cutting the extrudate to the desired length by means of a cutting device, drying at a temperature from 20 to 150° C., and annealing for a period from 30 minutes to 10 hours at a temperature of 400 to 1200° C. The moldings can be used as catalyst supports for the production of unsaturated esters from olefins, organic acids and oxygen in the gas phase and and can be used in particular for the production of vinyl acetate monomer.Type: GrantFiled: June 25, 1999Date of Patent: November 13, 2001Assignee: Degussa AGInventors: Thomas Tacke, Peter Schinke, Hermanus Lansink Rotgerink, Helmfried Kraus
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Patent number: 6316555Abstract: Processes for the living polymerization of olefin monomers with terminal carbon-carbon double bonds are disclosed. The processes employ initiators that include a metal atom and a ligand having two group 15 atoms and a group 16 atom or three group 15 atoms. The ligand is bonded to the metal atom through two anionic or covalent bonds and a dative bond. The initiators are particularly stable under reaction conditions in the absence of olefin monomer. The processes provide polymers having low polydispersities, especially block copolymers having low polydispersities. It is an additional advantage of these processes that, during block copolymer synthesis, a relatively small amount of homopolymer is formed.Type: GrantFiled: March 4, 1999Date of Patent: November 13, 2001Assignee: Massachusetts Institute of TechnologyInventors: Richard R. Schrock, Robert Baumann
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Patent number: 6309998Abstract: A process and catalyst for the direct oxidation of an olefin having three or more carbon atoms, such as propylene, by oxygen to the corresponding olefin oxide, such as propylene oxide. The process involves contacting the olefin with oxygen under reaction conditions in the presence of hydrogen and in the presence of a catalyst. The catalyst comprises gold on a titanosilicate, preferably a microporous or mesoporous titanosilicate, such as, TS-1, TS-2, Ti-beta, Ti-ZSM-48, or Ti-MCM-41. Selectivity to the olefin oxide is high at good conversions of the olefin. The catalyst is readily regenerated, and the time between catalyst regenerations is long.Type: GrantFiled: December 9, 1999Date of Patent: October 30, 2001Assignee: The Dow Chemical CompanyInventors: Robert G. Bowman, Joseph L. Womack, Howard W. Clark, Joseph J. Maj, George E. Hartwell
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Patent number: 6306289Abstract: A hydrotreating catalyst having both a high desulfurization activity and a denitrogenation activity and a method of hydrotreating a hydrocarbon oil using the same is provided.Type: GrantFiled: November 16, 1999Date of Patent: October 23, 2001Assignee: Tonen CorporationInventors: Fumitaka Hayashi, Akira Kamo, Hiroshi Toshima
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Patent number: 6294493Abstract: Disclosed are silicoaluminophosphates (SAPOs) having unique silicon distributions and high catalytic cracking activity, a method for their preparation and their use as FCC catalysts. More particularly, the new SAPOs have a high silica:alumina ratio and favorable Si atom distribution. The new SAPOs may have a small crystal size and may be synthesized from a single- phase synthesis solution.Type: GrantFiled: May 20, 1999Date of Patent: September 25, 2001Assignee: Exxon Mobil Chemical Patents Inc.Inventors: Karl G. Strohmaier, David E. W. Vaughan
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Patent number: 6288007Abstract: A catalyst with a high sulphur tolerance for the hydrogenation of middle distillate aromatics which comprises as a support (a) an alumina, the surface of which has been modified by contacting it with a silicon-containing compound, or (b) a silica, the surface of which has been modified by contacting it with an aluminum-containing compound. The support has been treated with air, oxygen or water vapor at an elevated temperature in order to convert the said silicon-containing compound or the said aluminum-containing compound to oxide form. The hydrogenating component of the catalyst is one or more metals of the platinum group.Type: GrantFiled: December 15, 1999Date of Patent: September 11, 2001Assignee: Fortum Oil & Gas OyInventors: Marina Lindblad, Aimo Rautiainen, Göran Sandström
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Patent number: 6271325Abstract: This invention relates to a composition of matter represented by the formula below, and to a polymerization process comprising combining an olefin in the gas or slurry phase with an activator, a support and a compound represented by the following formula: wherein M is a group 3 to 14 metal, each X is independently an anionic leaving group, n is the oxidation state of M, m is the formal charge of the YZL ligand, Y is a group 15 element, Z is a group 15 element, L is a group 15 or 16 element, R1 and R2 are independently a C1 to C20 hydrocarbon group, a heteroatom containing group, silicon, germanium, tin, lead, phosphorus, a halogen, R1 and R2 may also be interconnected to each other, R3 is absent, or is hydrogen, a group 14 atom containing group, a halogen, a heteroatom containing group, R4 and R5 are independently an aryl group, a substituted aryl group, a cyclic alkyl group, a substituted cyclic alkyl group, or multiple ring system, R6 and R7 are independently absent or hydrogenType: GrantFiled: May 17, 1999Date of Patent: August 7, 2001Assignee: Univation Technologies, LLCInventors: David H. McConville, Richard R. Schrock
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Patent number: 6242167Abstract: An electron accepting developer useful for producing visible images by reaction with an electron donor in carbonless paper and photo-imaging systems, the developer comprising an acid-treated, water insoluble alkali metal-modified, inorganic oxide or an acid-treated molecular sieve.Type: GrantFiled: April 12, 1999Date of Patent: June 5, 2001Assignee: Rentech, Inc.Inventors: Dale R. Shackle, Benjamin Chaloner-Gill
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Patent number: 6235258Abstract: A non-crystalline silica solid is obtainable by a process comprising the step of contacting in a liquid medium at least one silica precursor with at least one template comprising a polyethyleneimine or a mixture of two or more thereof.Type: GrantFiled: July 27, 1998Date of Patent: May 22, 2001Assignee: BASF AktiengesellschaftInventors: Ulrich Müller, Ulrich Steuerle
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Patent number: 6235677Abstract: A process is disclosed for producing hydrocarbons by contacting a feed stream comprising hydrogen and carbon monoxide with a catalyst in a reaction zone maintained at conversion-promoting conditions effective to produce an effluent stream comprising hydrocarbons. The process is characterized by using a catalyst prepared by a method involving (1) forming a catalyst gel by destabilizing an aqueous colloid comprising (a) at least one catalytic metal for Fischer-Tropsch reactions (e.g., iron, cobalt, nickel and/or ruthenium), (b) colloidal cerium oxide, zirconium oxide, titanium oxide and/or aluminum oxide, and optionally (c) Al(OR)3, Si(OR)4, Ti(OR)4 and/or Zr(OR)4 where each R is an alkyl group having from 1 to 6 carbon atoms; and (2) drying the gel.Type: GrantFiled: August 18, 1999Date of Patent: May 22, 2001Assignee: Conoco Inc.Inventors: Leo E. Manzer, Kostantinos Kourtakis
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Patent number: 6228797Abstract: A method of preparing a catalyst system which comprises mixing a first solid material comprising at least one perfluoroalkylsulfonic acid salt with a second solid material comprising at least one silanol comprising hydroxy groups and silicon to form a gel comprising silica and the at least one perfluororalkylsulfonic acid salt, and contacting the gel with an acidic solution to convert at least a portion of the at least one perfluoroalkylsulfonic acid salt to at least one perfluoroalkylsulfonic acid is disclosed. Alternatively, a method of preparing a catalyst system which comprises mixing at least one perfluoroalkylsulfonic acid salt with silica gel to form a gel comprising silica and at least one perfluororalkylsulfonic acid salt, and contacting the gel with an acidic solution to convert at least a portion of the at least one perfluororalkylsulfonic acid salt to at least one perfluororalkylsulfonic acid is disclosed.Type: GrantFiled: December 11, 1998Date of Patent: May 8, 2001Assignee: Phillips Petroleum CompanyInventors: G. J. Greenwood, Bruce B. Randolph
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Patent number: 6228800Abstract: A noble metal-supported article which comprises a carrier and a palladium-containing metal component supported on the carrier, which article has (A) a layer in which substantially no palladium is supported in the interior of the carrier and (B) a layer in which palladium is supported in the region from the outer surface to a depth of less than 100 &mgr;m of the carrier.Type: GrantFiled: May 26, 1999Date of Patent: May 8, 2001Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Tatsuo Yamaguchi, Setsuo Yamamatsu, Hiroshige Okamoto
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Patent number: 6211113Abstract: A layered catalyst support or carrier provides a core member for carrying out non-steady state heterogeneously catalyzed processes where reaction gases and their products come in contact with a conventional catalyst applied to the carrier. The support as a carrier is made up of a large number of individually shaped particulate bodies or monolithic packings to be loaded into a reactor and maintained as a fluidized bed or a fixed bed during the non-steady state reaction and the recovery of the products. The support or carrier may consist of glass, quartz, oxides, nitrides, aluminosilicates, magnesium silicates, metals and carbon or their mixtures. Each shaped particle or monolithic packing of this core support is then completely enclosed by depositing thereon a thin protective layer of a nitride, oxide, carbide or chloride of a metal, a non-metal or a mixture thereof, which exhibits a dense, pore-free microstructure and a nonpolar surface having a very low density of acid centers.Type: GrantFiled: September 10, 1996Date of Patent: April 3, 2001Assignee: BASF AktiengesellschaftInventors: Klaus Harth, Alfred Hagemeyer, Otto Watzenberger
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Patent number: 6211416Abstract: Enol ethers of the formula I where R1 is an aliphatic, cycloaliphatic, araliphatic, aromatic or heterocyclic radical which may carry further substituents which do not react with acetylenes or allenes, and the radicals R, independently of one another, are hydrogen or aliphatic, cycloaliphatic, araliphatic, aromatic or heterocyclic radicals, which may be bonded to one another to form a ring, and m is 0 or 1, are prepared by reacting an acetal or ketal of the formula II with an acetylene or allene of the formula III or IV where R and R1 have the abovementioned meanings, in the gas phase at elevated temperatures in the presence of a zinc- or cadmium- and silicon- and oxygen-containing heterogeneous catalyst.Type: GrantFiled: December 6, 1999Date of Patent: April 3, 2001Assignee: BASF AktiengesellschaftInventors: Joaquim Henrique Teles, Norbert Rieber, Klaus Breuer, Dirk Demuth, Hartmut Hibst, Heinz Etzrodt, Udo Rheude
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Patent number: 6207610Abstract: Compacts based on pyrogenically produced silicon dioxide and having the following physical and chemical characteristics: Outer diameter 0.8-20 mm BET surface area 30-400 m2/g Pore volume 0.5-1.3 ml/g Breaking strength 10-250N Composition >99.8 wt. % SiO2 Other constituents <0.2 wt. % Abrasion <5 wt. % Apparent weight 350-750 g/l are produced in that pyrogenically produced silicon dioxide is homogenized with methyl cellulose, microwax and polyethylene glycol with addition of water, dried at a temperature of 80-150° C. and comminuted to a powder, optionally the powder is compressed into compacts, and heat-treated at a temperature of 400 to 1200° C. for a time of 0.5 to 8 hours. These compacts can be used as catalysts or catalyst carriers in vinyl acetate monomer production and ethylene hydration.Type: GrantFiled: May 16, 1997Date of Patent: March 27, 2001Assignee: Degussa-Huls AGInventors: Helmfried Krause, Hermanus Lansink Rotgerink, Thomas Tacke, Peter Panster, Roland Burmeister
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Patent number: 6204218Abstract: A catalyst comprising, in its active composition, from 0.05 to 1.0% by weight of at least one metal or compound of a metal of the 10th group of the Periodic Table of the Elements and from 0.05 to 1.0% by weight of at least one metal or compound of a metal of the 11th group of the Periodic Table of the Elements, with the weight ratio of the metal of the 11th group to the metal of the 10th group being from 0.95 to 1.05, and, as support, an SiO2-containing catalyst support having a BET surface area of from 2 to 400 m2/g, wherein at least 20% of the total pore volume of the catalyst is made up by pores having a diameter greater than 100 nanometers, can be used in processes for removing alkynes, dienes and/or monounsaturated hydrocarbons from streams of materials.Type: GrantFiled: August 30, 1999Date of Patent: March 20, 2001Assignee: BASF AktiengesellschaftInventors: Klemens Flick, Ruprecht Meissner, Werner Hefner, Rainer Feser, Fabian Kunz
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Patent number: 6204346Abstract: Polymerization processes for ethylene and at least one mono-1-olefin comonomer having from about three to eight carbon atoms per molecule in the presence of a twice-aged catalyst system comprising chromium supported on a silica-titania support and a trialkylboron compound is provided. Novel ethylene copolymers also are produced.Type: GrantFiled: December 17, 1998Date of Patent: March 20, 2001Assignee: Phillips Petroleum Co.Inventors: Joseph J. Bergmeister, Steven J. Secora, Gerhard K. Guenther, Elizabeth A. Benham, Max P. McDaniel
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Patent number: 6200920Abstract: The present invention relates to a supported chromium-based catalyst titanated under specific conditions and used for the homopolymerization or the copolymerization of ethylene. The polyethylene obtained with this catalyst has high shear resirance and environmental stress crack resistance, and can be used for manufacturing films with improved tear properties.Type: GrantFiled: June 5, 1998Date of Patent: March 13, 2001Assignee: Fina Research, S.A.Inventors: Guy Debras, Jean-Pierre Dath
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Patent number: 6201077Abstract: A process comprising polymerizing ethylene, or polymerizing ethylene and at least one other olefin, to produce a polymer is provided.Type: GrantFiled: December 1, 1998Date of Patent: March 13, 2001Assignee: Phillips Petroleum CompanyInventors: Joseph J. Bergmeister, Steven J. Secora, Gerhard Guenther, Elizabeth A. Benham, Max P. McDaniel
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Patent number: 6194340Abstract: A solution of a siloxy-aluminoxane composition formed by mixing (i) a hydrocarbylsiloxane substantially free of hydroxyl groups with (ii) an aluminoxane, in an organic solvent medium in which the molar ratio of aluminum to hydrocarbylsiloxane is from 1:1 to 1000:1, is heated under reduced pressure to form a more concentrated solution. A siloxy-aluminoxane composition having greater solution stability than the initial siloxy-aluminoxane composition is thereby produced.Type: GrantFiled: March 2, 2000Date of Patent: February 27, 2001Assignee: Albemarle CorporationInventor: Samuel A. Sangokoya
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Patent number: 6180731Abstract: Polymers of ethylene are obtainable by polymerization of ethylene and, if desired, further comonomers in the presence of a catalyst system comprising as active constituents I) a Phillips catalyst, II) a solid which is different from I) and comprises a component which is derived from the metallocene complexes of the formula (A) in which the substituents and indices have the following meanings: R1 to R10 are hydrogen, C1-C10-alkyl, 5-to 7-membered cycloalkyl which may in turn bear C1-C6-alkyl groups as substituents, C6-C15-aryl or aryalkyl, where two adjacent radicals may also together form a cyclic group having from 4 to 15 carbon atoms, or Si(R11)3, where R11 is C1-C10-alkyl, C6-C15-aryl or C3-C10-cycloalkyl, or the radicals R4 and R9 together form a group —[Y(R12R13)]m—, where Y is silicon, germanium, tin or carbon, and R12, R13 are hydrogen C1-C10-alky, C3-C10-cycloalyl or C6-C15-aryl, M is a metal of transition groups IV to VIII or a metal of the lanthanideType: GrantFiled: January 22, 1997Date of Patent: January 30, 2001Assignee: BASF AktiengesellschaftInventors: Wolfgang Rohde, Roland Saive, Dieter Lilge, Martin Lux, Peter Bauer
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Patent number: 6159893Abstract: A honeycomb structure in which partitioning walls comprising, as a chief component, cordierite of a chemical composition containing 45 to 55% by weight of SiO.sub.2, 33 to 42% by weight of Al.sub.2 O.sub.3, and 12 to 18% by weight of MgO are formed in the shape of a honeycomb. The partitioning walls have a thickness of not larger than 250 .mu.m and a porosity of from 45 to 80%.Type: GrantFiled: March 25, 1999Date of Patent: December 12, 2000Assignee: Denso CorporationInventor: Tosiharu Kondo
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Patent number: 6127301Abstract: The present invention provides a novel catalyst system which can be preferably used in the trimerization, oligomerization reaction or polymerization reaction of an olefin, and a method for the trimerization, oligomerization or polymerization reaction of an olefin, which comprises using the catalyst system. A catalyst system obtained by contacting the following components (A) to (C):(A) a chromium compound,(B) an imine compound, and(C) a metal alkyl compound, and a method for the trimerization, oligomerization or polymerization reaction of an olefin, which comprises using the catalyst system are disclosed.Type: GrantFiled: June 27, 1997Date of Patent: October 3, 2000Assignee: Sumitomo Chemical Company, LimitedInventors: Kiyoshi Iwanaga, Mitsuhisa Tamura
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Patent number: 6121187Abstract: The present invention relates to amorphous microporous mixed oxides, characterized by having, in dried form, a narrow pore size distribution (half width <.+-.10% of the pore diameter) of micropores with diameters in the range of <3 nm and a total surface area of between 20 and 1000 m.sup.2 /g, containing a fraction of from 0.1 to 20% by weight of non-hydrolyzable organic groups, and to a process for the preparation of such oxides.Type: GrantFiled: October 26, 1998Date of Patent: September 19, 2000Assignee: Studiengesellschaft Kohle mbHInventor: Wilhelm F. Maier
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Patent number: 6111038Abstract: The present invention intends to provide a process for preparation of a solid titanium catalyst component for an olefin polymerization excellent in polymerization activity per unit catalyst, and a process for preparation of a polyolefin using a catalyst containing the catalyst component. The process according to the present invention is characterized by comprising the steps of contacting (A) a magnesium compound with (B) a solution titanium compound to obtain a solid titanium catalyst component composed of titanium, magnesium and a halogen as the essential components, wherein a titanium compound mixture liquid composed of 88 to 99% by weight of a titanium compound and 1 to 12% by weight of hydrocarbon containing halogen-containing hydrocarbon is used as (B) the solution titanium compound.Type: GrantFiled: April 9, 1998Date of Patent: August 29, 2000Assignee: Mitsui ChemicalsInventors: Mamoru Kioka, Shinichi Kojoh, Tsuneo Yashiki
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Patent number: 6096674Abstract: An HC adsorbent has an MFI-type metallo-silicate including at least one of gallium and indium as a framework forming element, and aluminum (Al) in the MFI-type metallo-silicate in a content of Al.ltoreq.0.05% by weight. Such an HC adsorbent has an excellent heat-resistance.Type: GrantFiled: January 14, 1999Date of Patent: August 1, 2000Assignees: Honda Giken Kogyo Kabushiki Kaisha, Nippon Chemical Industrial Co., Ltd.Inventors: Takahiro Naka, Tetsuo Endo, Haruhiko Shimizu, Yoshikazu Fujisawa, Muneo Mita, Kenji Agemoto
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Patent number: 6096679Abstract: A process for producing a chromium-based catalyst for the production of polyethylene, the process comprising the steps of providing a catalyst support selected from silica, silica-titania and silica-zirconia; reacting the support with one of an aluminium alkyl compound or a chromium salt compound selected from at least one of chromium (III) acetylacetonate, chromium (III) acetate, chromium (III) oxalate and chromium (III) stearate; and thereafter reacting the support with the other of the aluminium alkyl compound or the chromium salt to produce a chromium-impregnated catalyst having a silica-alumina support, the catalyst composition comprising from 0.4 to 1.5 wt % chromium, based on the weight of the chromium-based catalyst and the alumina in the silica-containing support comprising from 0.5 to 4 wt % aluminium in the chromium-based catalyst.Type: GrantFiled: September 26, 1998Date of Patent: August 1, 2000Assignee: Fina Research, S.A.Inventors: Nicodeme Lonfils, Philippe Bodart, Guy Debras
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Patent number: 6090359Abstract: The present invention is a process of hydrogenating high molecular weight aromatic polymers comprising hydrogenating the high molecular weight aromatic polymer in the presence of a silica supported metal hydrogenation catalyst, characterized in that the silica has a pore size distribution such that at least 98 percent of the pore volume is defined by pores having diameter of greater than 600 angstroms.Type: GrantFiled: February 17, 1998Date of Patent: July 18, 2000Assignee: The Dow Chemical CompanyInventor: Dennis A. Hucul
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Patent number: 6083867Abstract: A composition is prepared by a method which comprises mixing a first solid material comprising a platinum group metal, a rhenium component, a porous carrier material and, optionally, a halogen component and a second solid material comprising silica and bismuth. The thus-obtained composition is employed as a catalyst in the conversion of hydrocarbons to aromatics.In an alternate embodiment, hydrocarbons are converted to aromatics by sequentially contacting the hydrocarbons with the first solid material and then the second solid material.Type: GrantFiled: August 31, 1998Date of Patent: July 4, 2000Assignee: Phillips Petroleum CompanyInventors: An-hsiang Wu, Charles A. Drake
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Patent number: 6060421Abstract: A mixed metal oxide MoVLaPdNbXO catalytic system (wherein X=Al, Ga, Ge and/or Si) providing higher selectivity and space time yield of acetic acid at low pressure and low temperature in a single stage oxidation of ethane with a molecular oxygen-containing gas and steam.Type: GrantFiled: December 23, 1998Date of Patent: May 9, 2000Assignee: Saudi Basic Industries CorporationInventors: Khalid Karim, Mohammad Al-Hazmi, Asah Khan