And Group I Metal Containing (i.e., Alkali, Ag, Au Or Cu) Patents (Class 502/218)
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Patent number: 4931418Abstract: Catalyst compositions are disclosed containing potassium pyrosulfate, cesium pyrosulfate, supported on an inorganic oxide. The catalysts will selectively oxidize naphthalene and/or o-xylene to phthalic anhydride in a fluidized- or fixed-bed reactor system. Sulfur-containing gaseous promoter may be fed with the aromatic hydrocarbon to enhance selectivity.Type: GrantFiled: November 9, 1987Date of Patent: June 5, 1990Assignee: Aristech Chemical CorporationInventors: Leonard A. Cullo, Elliott V. Nagle, Jr., Edward F. Restelli, Jr., Thomas J. Yogan
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Patent number: 4912082Abstract: A catalyst for the combination of CO and O.sub.2 to form CO.sub.2 which includes a platinum group metal--e.g., platinum; a reducible metal oxide having multiple valence states--e.g., SnO.sub.2 ; and a compound which can bind water to its structure--e.g., silica gel. This catalyst is ideally suited for application to high-powered, pulsed, CO.sub.2 lasers operating in a sealed or closed-cycle condition.Type: GrantFiled: January 18, 1989Date of Patent: March 27, 1990Assignee: The United States of America as represeted by the Administrator of the National Aeronautics and Space AdministrationInventors: Billy T. Upchurch, Irvin M. Miller, David R. Brown, Patricia P. Davis, David R. Schryer, Kenneth G. Brown, John D. Van Norman
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Patent number: 4908343Abstract: This invention relates to catalysts for the manufacture of ethylene oxide, especially at commercial concentrations in the presence of carbon dioxide gas recycle, which contains impregnated silver on a support and a mixture of cesium salt and one or more alkali metal and alkaline earth metal salts in which the anions thereof are halide or oxyanions of elements other than the oxygen therein having an atomic number of 7 or 15 to 83 and being from groups 3b through 7b, inclusive, and 3a through 7a, inclusive, of the Periodic Table of the Elements, at least a portion of said oxyanions are oxyanions of group 3b to 7b elements.Type: GrantFiled: October 3, 1988Date of Patent: March 13, 1990Assignee: Union Carbide Chemicals and Plastics Company Inc.Inventor: Madan M. Bhasin
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Patent number: 4902661Abstract: Diphenylamine which is unsubstituted or substituted by alkyl or alkoxy groups can be prepared by treating appropriately substituted dicyclohexylamine with 1-10 bar of H.sub.2 over catalysts containing 0.05-5% by weight of rhodium at 250.degree.-450.degree. C. In addition to rhodium, the catalysts contain at least one other platinum metal from the group consisting of palladium, platinum and iridium on a support containing the noble metals in a total amount of 0.05-5% by weight, the percentage by weight of rodium with respect to all noble metals being 10-90%, and furthermore containing additives of 1-6% by weight of an alkali metal hydroxide and 1-6% by weight of an alkali metal sulphate. All percentages are based on the total weight of the catalyst.Type: GrantFiled: January 9, 1989Date of Patent: February 20, 1990Assignee: Bayer AktiengesellschaftInventors: Otto Immel, Hans-Helmut Schwarz
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Patent number: 4879387Abstract: A method for the manufacture of phthalic anhydride by the catalytic oxidation of naphthlene and/or ortho-xylene which comprises contacting a mixed gas containing naphthalene and/or ortho-xylene and a molecular oxygen-containing gas with a catalyst bed comprising a first catalyst packed on the upstream side of the flow of mixed gas and a second catalyst packed on the downstream side of the flow, wherein the first catalyst has carried on a nonporous inactive carrier a catalytically active component composed of 90 to 67% by weight of titanium dioxide, 8 to 30% by weight of vanadium pentoxide, 2 to 5% by weight of a cesium compound and 0.11 to 0.2 of cesium compound/vanadium pentoxide (molar ratio) (calculated as Cs.sub.2 SO.sub.4), and the second catalyst has carried on the nonporous inactive carrier a catalytically active component composed of 94 to 67% by weight of titanium dioxide, 5 to 30% by weight of vanadium pentoxide and not more than 0.Type: GrantFiled: April 5, 1988Date of Patent: November 7, 1989Assignee: Nippon Steel Chemical Co., Ltd.Inventor: Tadanori Hara
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Patent number: 4874739Abstract: A process for the preparation of a silver-containing catalyst suitable for the oxidation of ethylene to ethylene oxide which comprises:(a) mixing alumina with a tin compound and with an alkali metal compound,(b) calcining the mixture to obtain an alkali metal-enriched and tin-modified alumina carrier,(c) impregnating the carrier with a solution of a silver compound, which is sufficient to cause precipitation on the carrier of from 1 to 25 prer cent by weight, on the total catalyst, of silver and before, during or after that impregnation also impregnating the carrier with one or more dissolved alkali metal compounds and with a rhenium compound as promoters,(d) precipitating the sliver compund on the carrier and(e) reducing the silver compound to metallic silver.Type: GrantFiled: July 11, 1988Date of Patent: October 17, 1989Assignee: Shell Oil CompanyInventor: Gosse Boxhoorn
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Patent number: 4853357Abstract: The additional of redox-active metal components and ligands, alternatively or simultaneously, results in increased conversion and selectivity in the palladium-catalyzed oxidation of olefins to carbonyl products in the presence of polyoxoanions. In preferred modes, heteropolyoxoanions and Isopolyoxoanions containing tungsten, molybdenum and vanadium, individually or in combination, are described. The use of copper as the redox-active metal component shows reduced allylic reactivity. The elimination of chloride from the catalyst system provides substantial engineering advantages over the prior art, particularly, the reduction of corrosion and chloro-organic by-product formation. The use of redox-active metal components and/or ligands makes the palladium-polyoxoanion catalyst system industrially practicable.Type: GrantFiled: September 30, 1987Date of Patent: August 1, 1989Assignee: Catalytica AssociatesInventors: Janis Vasilevskis, Jacques C. De Deken, Robert J. Saxton, Paul R. Wentrcek, Jere D. Fellmann, Lyubov S. Kipnis
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Patent number: 4840932Abstract: A process for producing 1,4-naphthoquinone by oxidizing naphthalene with molecular oxygen in a vapor phase in the presence of a catalyst. The catalyst is made of a mixture of a carrier and fusible catalytic components including vanadium oxide and alkali metal sulfate and pyrosulfate, and has a molded configuration having one or more through-holes.Type: GrantFiled: March 16, 1988Date of Patent: June 20, 1989Assignee: Kawasaki Kasei Chemicals Ltd.Inventors: Ryo Matsuura, Shigeyuki Yoshimura, Yasuo Asanuma, Katsuaki Nasu, Haruo Yoshizumi, Kazumi Tsujimoto, Toshiyuki Kimura
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Patent number: 4831004Abstract: A composition of matter is prepared by a process comprising the steps of impregnating a alumina-containing support material with a thiosulfate (preferably ammonium thiosulfate), drying the thus impregnated material, impregnating the dried material with a transition metal compound, drying and calcining the transition metal impregnated material. This composition of matter is used as catalyst composition for hydrogenating unsaturated hydrocarbon compounds, and as catalyst composition for hydrotreating hydrocarbon-containing feed streams (in particular heavy oils) which contain metal and sulfur compounds as impurities.Type: GrantFiled: June 29, 1988Date of Patent: May 16, 1989Assignee: Phillips Petroleum CompanyInventors: Karlheinz K. Brandes, Simon G. Kukes, Thomas Davis
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Patent number: 4824820Abstract: A composition of matter comprising a mixture of (i) a sulfide of at least one promoter metal selected from the group consisting of Ni, Co, Mn, Cu, Zn and mixture thereof and mixtures thereof with Fe, (ii) an amorphous sulfide of trivalent chromium and (iii) microcrystallites of metal sulfide of a metal selected from the group consisting of molybdenum, tungsten and mixture thereof. These compositions have been found to be useful hydrotreating catalysts having nitrogen removal activity superior to that of commercial catalysts such as cobalt-molybdate on alumina.Type: GrantFiled: September 24, 1987Date of Patent: April 25, 1989Assignee: Exxon Research and Engineering CompanyInventors: Allan J. Jacobson, Teh C. Ho, Russell R. Chianelli, John J. Steger, Angelo A. Montagna
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Patent number: 4820676Abstract: A process for preparing impregnated substantially spherical alumina-containing particles comprises the steps of impregnating specific starting material with (NH.sub.4).sub.2 SO.sub.4 and then heating the thus impregnated material at about 500.degree.-900.degree. C. for improved crush strength retention. In a preferred embodiment a fixed catalyst bed comprises at least one layer of the alumina-containing particles and at least one layer of catalyst particles comprising a refractory inorganic carrier and at least one hydrogenation promoter.Type: GrantFiled: May 26, 1988Date of Patent: April 11, 1989Assignee: Phillips Petroleum CompanyInventors: Simon G. Kukes, Karlheinz K. Brandes
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Patent number: 4766104Abstract: A catalyst is produced in two stages in that prefabricated carrier bodies are impregnated with solutions which contain vanadium and alkalies. When the impregnated carrier bodies have been dried, the conversion activity of the catalyst is increased further in that the catalyst is activated under oxidizing conditions at a temperature of 700.degree. C. to 1000.degree. C.Type: GrantFiled: May 8, 1987Date of Patent: August 23, 1988Assignee: Metallgesellschaft AktiengesellschaftInventor: Wolfgang Fennemann
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Patent number: 4758545Abstract: A process for the manufacture of catalyst moldings from granular catalyst material, preferably iron ore, chromium ore or a similar ore, with the use of a binder is disclosed. The granular catalyst material is thermally pre-treated in a temperature range of approximately 250.degree. to 1000.degree. C., before it is mixed with dilute and/or concentrated sulfuric acid functioning as the binder.Type: GrantFiled: December 5, 1986Date of Patent: July 19, 1988Assignee: Didier-Werke AGInventors: Daniel Grimm, Hartmut Kainer, Blagoje Levkov
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Patent number: 4729977Abstract: A supported catalyst containing rhodium and compounds of chromium, manganese, alkali metals and, if appropriate, compounds of sulphur is prepared by first applying compounds of chromium and manganese to the catalyst support, subsequently heating the catalyst support thus charged to elevated temperatures and then impregnating it with a rhodium solution, drying it, treating it with an alkali metal solution and, if appropriate, applying sulphur compounds to the catalyst support thus treated. The supported catalyst thus prepared can be used for the dehydrogenation of compounds and/or compound mixtures consisting of completely and/or partly hydrogenated hydroxydiphenyl.Type: GrantFiled: June 11, 1986Date of Patent: March 8, 1988Assignee: Bayer AktiengesellschaftInventors: Otto Immel, Oskar Weissel, Hans-Helmut Schwarz
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Patent number: 4721696Abstract: A composition of matter comprising alumina as the major component and silica as a minor component is prepared by a process comprising sequential addition of solutions of aluminum salt and alkali metal aluminate, addition of a solution of alkali metal silicate to dispersed alumina hydrogen and heating formed alumina-silica hydrogel under dehydrating conditions. The thus prepared composition of matter, optionally promoted with at least one transition metal compound, can be used as a catalyst for hydrotreating substantially liquid hydrocarbon-containing feed streams which also contain sulfur and metal compounds as impurities.Type: GrantFiled: March 11, 1987Date of Patent: January 26, 1988Assignee: Phillips Petroleum CompanyInventor: Dennis R. Kidd
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Patent number: 4720474Abstract: The addition of redox-active metal components and ligands, alternatively or simultaneously, results in increased conversion and selectivity in the palladium-catalyzed oxidation of olefins to carbonyl products in the presence of polyoxoanions. In preferred modes, heteropolyoxoanions and isopolyoxoanions containing tungsten, molybdenum and vanadium, individually or in combination, are described. The use of copper as the redox-active metal component shows reduced allylic reactivity. The elimination of chloride from the catalyst system provides substantial engineering advantages over the prior art, particularly, the reduction of corrosion and chloro-organic by-product formation. The use of redox-active metal components and/or ligands makes the palladium-polyoxoanion catalyst system industrially practicable.Type: GrantFiled: September 24, 1985Date of Patent: January 19, 1988Assignee: Catalytica AssociatesInventors: Janis Vasilevskis, Jacques C. De Deken, Robert J. Saxton, Paul R. Wentrcek, Jere D. Fellmann, Lyubov S. Kipnis
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Patent number: 4680281Abstract: A catalyst is produced in two stages in that prefabricated carrier bodies are impregnated with solutions which contain vanadium and alkalies. When the impregnated carrier bodies have been dried, the conversion activity of the catalyst is increased further in that the catalyst is activated under oxidizing conditions at a temperature of 700.degree. to 1000.degree. C.Type: GrantFiled: January 22, 1985Date of Patent: July 14, 1987Assignee: Metallgesellschaft AktiengesellschaftInventor: Wolfgang Fennemann
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Patent number: 4645754Abstract: A silver catalyst for the production of ethylene oxide by catalytic vapor phase oxidation of ethylene with molecular oxygen in the presence of a halogenated inhibitor, having silver and at least one accelerator selected from the group consisting of alkali metals and alkali metal compounds deposited on a porous inorganic refractory carrier in the shape of Intalox saddles or Berl saddles, and the method for manufacture thereof.Type: GrantFiled: October 10, 1985Date of Patent: February 24, 1987Assignee: Nippon Shokubai Kagaku Kogyo Co., Ltd.Inventors: Fumihide Tamura, Minoru Saotome
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Patent number: 4558027Abstract: Catalyst for the production of methane from carbon and/or coal by means of catalytic gasification. The catalyst compostion containing at least two alkali metal salts. A particulate carbonaceous substrate or carrier is used.Type: GrantFiled: May 25, 1984Date of Patent: December 10, 1985Assignee: The United States of America as represented by the United States Department of EnergyInventors: Douglas W. McKee, Clifford L. Spiro, Philip G. Kosky
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Patent number: 4537867Abstract: Iron-cobalt spinels which contain low levels of cobalt, in an iron/cobalt atomic ratio of 7:1 to 35:1, are converted to Fischer-Tropsch catalysts upon reduction and carbiding that exhibit high activity and selectivity to C.sub.2 --C.sub.6 olefins and low CH.sub.4 production.Type: GrantFiled: December 14, 1983Date of Patent: August 27, 1985Assignee: Exxon Research and Engineering Co.Inventors: Rocco A. Fiato, Stuart L. Soled, Angelo A. Montagna
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Patent number: 4521529Abstract: A catalyst capable of cracking kerosene under lower pressure and temperature comprising (A) kerosene; (B) metal powder mixture of chromium powder, copper powder, lead powder, zinc powder, nickel powder, manganese powder in an amount of 12 to 13 parts by weight per 100 parts by weight of said kerosene; (C) sulfuric acid in an amount of 15 to 30 parts by weight per 100 parts by weight of said kerosene; (D) inorganic powder mixture of aluminum oxide powder, serpentine powder, alum powder, magnesium oxide powder, limestone powder, slake lime powder, silica powder, and granite powder in an amount of 150 to 170 parts by weight per 100 parts by weight of said kerosene.Type: GrantFiled: September 4, 1984Date of Patent: June 4, 1985Assignee: Son Su KungInventor: C. H. Hsie
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Patent number: 4521530Abstract: An oxidation catalyst of palladium, copper and nickel on an alumina substrate. The catalyst is produced by impregnating the alumina substrate with a halide salt solution of palladium chloride, nickel chloride, copper chloride and copper sulfate. The catalyst is useful for removal by oxidation, adsorption or decomposition of gases such as carbon monoxide, hydrogen sulfide, hydrogen cyanide, sulfur dioxide, and ozone, present in dilute concentrations in air.Type: GrantFiled: June 15, 1983Date of Patent: June 4, 1985Assignee: Teledyne Industries, Inc., Teledyne Water PikInventors: Victor F. Zackay, Donald R. Rowe
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Patent number: 4518707Abstract: Slurried high surface area Fe-Co spinels which are fully reduced/carburized provide exceptionally high activity and selectivity in the conversion of CO/H.sub.2 to alpha-olefins. These iron-cobalt catalysts maintain good activity and selectivity under low pressure reaction conditions.Type: GrantFiled: December 14, 1983Date of Patent: May 21, 1985Assignee: Exxon Research & Engineering Co.Inventors: Stuart L. Soled, Rocco A. Fiato
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Patent number: 4481361Abstract: Process for the production of 3-picoline wherein a first educt, consisting of acetaldehyde and/or at least one acetaldehydeacetal and/or crotonaldehyde, is reacted with a second educt, consisting of formaldehyde and/or at least one formaldehydeacetal and/or hexamethylenetetramine, in a liquid, aqueous phase at a temperature of 180.degree. to 280.degree. C. in a closed vessel. The reaction is conducted in the presence of ammonia and/or ammonium ions. The reaction is also conducted in the presence of at least one water-soluble alkali metal salt of an inorganic and/or organic acid or acids which provides an anion or anions of an inorganic and/or organic acid or acids, which at 20.degree. C. have an acid dissociation constant of 10.sup.6 to 10.sup.-12.Type: GrantFiled: May 11, 1983Date of Patent: November 6, 1984Assignee: Lonza Ltd.Inventors: Rolf Dinkel, Hilmar Roedel, James I. Grayson
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Patent number: 4460699Abstract: The present invention provides a fixed bed catalyst for the oxychlorination of ethene, alpha olefins and aromatics. More specifically, this invention relates to a catalyst having an impeded center which excludes reactants, or prevents products from forming in the interior of the catalyst. The impeded center may be made inaccessible or it may be inert to reaction. Thin layers of high specific surface area carrier material cover the outer surface of the impeded center. An agent capable of catalyzing oxychlorination reactions is added to the layered catalytic carrier material.Type: GrantFiled: August 4, 1982Date of Patent: July 17, 1984Assignee: Conoco Inc.Inventors: Ronald J. Convers, Robert M. Owens
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Patent number: 4431573Abstract: A catalyst for oxidizing SO.sub.2 to SO.sub.3 and containing V.sub.2 O.sub.5 and alkali sulfate in a molar ratio below 1 is produced by impregnating prefabricated support bodies with a solution of the active substances in sulfuric acid and the impregnated support bodies are dried and moved at the same time.Type: GrantFiled: August 26, 1981Date of Patent: February 14, 1984Assignee: Metallgesellschaft AktiengesellschaftInventors: Wolfgang Fennemann, Ulrich Sander, Manfred Bick
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Patent number: 4427576Abstract: The hydrogen sulfide, and/or organosulfur compounds, and/or elemental sulfur contained in gaseous effluents is/are catalytically oxidized to sulfur dioxide, employing an improved oxidation catalyst comprising (i) titanium dioxide, or admixture of titanium dioxide with zirconia or silica, (ii) an alkaline earth metal sulfate, and (iii) at least one of the elements copper, silver, zinc, cadmium, yttrium, lanthanides, vanadium, chromium, molybdenum, tungsten, manganese, iron, cobalt, rhodium, irridium, nickel, palladium, platinum, tin and bismuth.Type: GrantFiled: March 1, 1982Date of Patent: January 24, 1984Assignee: Rhone-Poulenc Specialites ChimquesInventor: Thierry Dupin
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Patent number: 4415477Abstract: The herein-proposed catalyst for dehydrogenation oxygen-containing derivatives of the cyclohexane series having the following general formula ##STR1## where R.sub.1 is either hydrogen or alkyl C.sub.1 -C.sub.4,R.sub.2 and R.sub.3 are radicals having either the same or different values --H, --OH, .dbd.O, provided that R.sub.2 and R.sub.3 are not hydrogen atoms both at a time,R.sub.1, R.sub.2, R.sub.3 being linked to different carbon atoms of the ring to form the corresponding cyclic ketones and/or phenols, comprises the following components (wt. %):nickel--15 to 55tin--0.2 to 1.95inert carrier--84.8 to 43.05,while the atomic ratio of nickel and tin lies within 15:1 and 410:1, respectively, and may contain additionally an alkali salt of a mineral acid in an amount of 0.01 to 1.0 wt. %.Type: GrantFiled: December 22, 1980Date of Patent: November 15, 1983Inventors: Alexandr Y. Rozovsky, Valentin D. Stytsenko, Svetlana A. Nizova, Petr S. Belov, Alexandr J. Dyakonov