Of Group I (i.e., Alkali, Ag, Au Or Cu) Patents (Class 502/243)
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Patent number: 4536482Abstract: A catalyst is disclosed wherein a particulate catalyst support has cosputtered on its surface a mixture of a catalytically active metal such as Pt, Pd, Ag, Au, Re, Rh, Ru or Ir and a cosputtered support material which preferably is the same material as the catalyst support.Type: GrantFiled: October 31, 1984Date of Patent: August 20, 1985Assignee: E. I. Du Pont de Nemours and CompanyInventor: Peter F. Carcia
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Patent number: 4514519Abstract: A catalyst containing tungsten, an alkali or alkaline earth component, and iron on a support, preferably silica gel, is disclosed which is useful in reverse disproportionation of stilbene and ethylene to produce styrene.Type: GrantFiled: January 16, 1984Date of Patent: April 30, 1985Assignee: Monsanto CompanyInventor: Charles F. Hobbs
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Patent number: 4511672Abstract: A catalyst containing tungsten, potassium, and bismuth on a support, preferably silica gel, is disclosed which is useful in reverse disproportionation of stilbene and ethylene to produce styrene.Type: GrantFiled: January 16, 1984Date of Patent: April 16, 1985Assignee: Monsanto CompanyInventor: Charles F. Hobbs
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Patent number: 4511671Abstract: A catalyst for manufacturing methacrolein by the vapor phase oxidation of isobutylene or tertiary butanol, said catalyst having the composition represented by the following formulaMo.sub.a W.sub.b Bi.sub.c Fe.sub.d A.sub.e B.sub.f C.sub.g D.sub.h O.sub.xwhereinA represents at least one element selected from the group consisting of nickel and cobalt,B represents at least one element selected from the group consisting of alkali metals, alkaline earth metals and thallium,C represents at least one element selected from the group consisting of tellurium, antimony, tin, cerium, lead, manganese and zinc,D represents at least one element selected from the group consisting of silicon, aluminum, zirconium and titanium,a, b, c, d, e, f, g, h, and x respectively represent the atomic ratios of Mo, W, Bi, Fe, A, B, C, D, and O, and whena is fixed at 12,b is from 0 to 10,c is from 0.1 to 10,d is from 0.Type: GrantFiled: September 1, 1983Date of Patent: April 16, 1985Assignee: Nippon Shokubai Kagaku Kogyo Co., Ltd.Inventors: Noboru Saito, Takeshi Satake, Ryuji Aoki, Isao Nagai
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Patent number: 4510320Abstract: A process is provided for the production of aliphatic acetate esters and gaseous alkanes comprising contacting acetic acid and synthesis gas in the vapor phase at elevated temperature and pressure in the presence of a catalyst containing the mixed oxides of ruthenium and nickel, and optionally an alkali metal oxide and the oxides of cobalt, cadmium, zinc or mixtures thereof. Other carboxylic acids may be substituted for acetic acid as desired.Type: GrantFiled: December 24, 1981Date of Patent: April 9, 1985Assignee: The Standard Oil Co. (Ohio)Inventors: Frederick A. Pesa, Anne M. Graham
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Patent number: 4507404Abstract: A process is described for preparing gasoline boiling range hydrocarbons with a high iso-paraffins content from syngas having a H.sub.2 /CO mol. ratio between 1.0 and 5.0 over a catalyst mixture comprising a methanol synthesis component which contains zinc and one or more metals selected from the group consisting of chromium, copper and aluminum and a crystalline metal silicate with ZSM-5 structure which contains SiO.sub.2 and one or more oxides of a trivalent metal A selected from the group consisting of aluminum, iron, gallium, rhodium, chromium and scandium, and wherein the SiO.sub.2 /A.sub.2 O.sub.3 molar ratio is higher than 10; and which catalyst mixture has been prepared by spray-drying followed by calcining at a temperature between 425.degree. and 525.degree. C.Type: GrantFiled: February 24, 1984Date of Patent: March 26, 1985Assignee: Shell Oil CompanyInventors: Johannes K. Minderhoud, Martin F. M. Post
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Patent number: 4504594Abstract: Para-ethyltoluene dehydrogenation catalyst compositions and processes for using such catalysts are provided. The catalyst compositions comprise a catalytically active iron compound, e.g., iron oxide; a potassium catalyst promoter, e.g., potassium carbonate; an optional chromium compound stabilizer, e.g., chromic oxide, and a bismuth compound, e.g., bismuth trioxide. Utilization of particular amounts of bismuth compound in dehydrogenation catalyst compositions of this type will provide a catalyst especially suitable for promoting the selective dehydrogenation of para-ethyltoluene to form para-methylstyrene in improved yields.Type: GrantFiled: December 15, 1982Date of Patent: March 12, 1985Assignee: Mobil Oil CorporationInventor: Chin-Chiun Chu
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Patent number: 4504599Abstract: Antimony-containing metal oxide catalysts are produced or activated by dry blending (a) a catalyst or catalyst precursor composed of an antimony-containing metal oxides composition containing antimony and at least one element selected from the group consisting of iron, cobalt, nickel, manganese, cerium, uranium, tin, titanium, and copper, and (b) elemental antimony or an antimony compound, and contacting the components (a) and (b) with each other at about 300.degree. C. to about 1000.degree. C. in a non-reducing gas atmosphere for a period sufficient for the elemental antimony or antimony compound (b) to deposit on the catalyst or catalyst precursor (a).Type: GrantFiled: November 14, 1983Date of Patent: March 12, 1985Assignee: Nitto Chemical Industry Co., Ltd.Inventors: Yutaka Sasaki, Yoshimi Nakamura
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Patent number: 4503163Abstract: Para-ethyltoluene dehydrogenation catalyst compositions and processes for using such catalysts are provided. The catalyst compositions comprise a catalytically active iron compound, e.g., iron oxide; a potassium catalyst promoter, e.g., potassium carbonate; an optional chromium compound stabilizer, e.g., chromic oxide, and a calcium compound, e.g., calcium oxide. Utilization of particular amounts of calcium compound in dehydrogenation catalyst compositions of this type will provide a catalyst especially suitable for promoting the selective dehydrogenation of para-ethyltoluene to form para-methylstyrene in improved yields.Type: GrantFiled: December 15, 1982Date of Patent: March 5, 1985Assignee: Mobil Oil CorporationInventor: Chin-Chiun Chu
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Patent number: 4499328Abstract: Olefins are converted into other olefins having different numbers of carbon atoms by contact with a catalyst comprising silica containing tungsten oxide and a promoting amount of silver under conditions suitable for silver to promote the activity of tungsten oxide for the disproportionation reaction.Type: GrantFiled: October 5, 1983Date of Patent: February 12, 1985Assignee: Phillips Petroleum CompanyInventors: Simon G. Kukes, Robert L. Banks
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Patent number: 4499298Abstract: A process is described for the preparation of aryl esters such as benzyl acetate by reacting an aryl alkyl compound such as toluene with a carboxylic acid such as acetic acid and oxygen in the presence of a catalytically effective amount of a catalyst comprising palladium metal, gold metal and a metal of Group VA of the Periodic Table of the Elements such as bismuth.Type: GrantFiled: December 20, 1979Date of Patent: February 12, 1985Assignee: National Distillers and Chemical CorporationInventors: John A. Scheben, James A. Hinnenkamp
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Patent number: 4496662Abstract: Para-ethyltoluene dehydrogenation catalyst compositions and processes for using such catalysts are provided. The catalyst compositions comprise a catalytically active iron compound, e.g., iron oxide; a potassium catalyst promoter, e.g., potassium carbonate; an optional chromium compound stabilizer, e.g., chromic oxide, and a magnesium compound, e.g., magnesium oxide. Utilization of particular amounts of magnesium compound in dehydrogenation catalyst compositions of this type will provide a catalyst especially suitable for promoting the selective dehydrogenation of para-ethyltoluene to form para-methylstyrene in improved yields.Type: GrantFiled: December 23, 1982Date of Patent: January 29, 1985Assignee: Mobil Oil CorporationInventor: Chin-Chiun Chu
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Patent number: 4490477Abstract: A catalyst containing tungsten, iridium, and an alkali or alkaline earth component, preferably potassium, on a support, preferably silica gel, is disclosed which is useful in reverse disproportionation of stilbene and ethylene to produce styrene.Type: GrantFiled: January 16, 1984Date of Patent: December 25, 1984Assignee: Monsanto CompanyInventor: Charles F. Hobbs
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Patent number: 4485190Abstract: A process for preparing a catalyst for the oxidation of sulfur dioxide comprising:(a) intimately contacting a siliceous support with a mixture of a water-insoluble vanadium (V) compound, a potassium (K) salt so that the K/V molar ratio is maintained between about 2.5 and about 4.0, a source of sulfite anion, a water-insoluble sodium (Na) salt of an acid having a pKa between about 3 and about 7 so that the K/Na molar ratio is between about 4 and about 8, and water to form an intermediate product;(b) drying the intermediate product;(c) calcining the dried intermediate product; and(d) sulfating the calcined intermediate product; thus providing a catalyst with high durability and high catalytic activity with an alpha-cristobalite content between from about 1 to about 30 percent.The wet catalyst may be extruded into shaped forms such as spheres, cylinders, trilobes, or tablets before drying.Type: GrantFiled: April 2, 1980Date of Patent: November 27, 1984Assignee: Stauffer Chemical CompanyInventor: Fawzy G. Sherif
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Patent number: 4474897Abstract: A catalyst containing tungsten, lead, and an alkali or alkaline earth component on a support, preferably silica gel, is disclosed which is useful in reverse disproportionation of stilbene and ethylene to produce styrene.Type: GrantFiled: August 17, 1983Date of Patent: October 2, 1984Assignee: Monsanto CompanyInventor: Charles F. Hobbs
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Patent number: 4448894Abstract: A catalyst containing tungsten, antimony and an alkali or alkaline earth component on a support, preferably silica gel, is disclosed which is useful in reverse disproportionation of stilbene and ethylene to produce styrene.Type: GrantFiled: July 18, 1983Date of Patent: May 15, 1984Assignee: Monsanto CompanyInventor: Charles F. Hobbs
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Patent number: 4444899Abstract: An improved process for the production of a low density formed product of an activated alumina having a large macro-pore volume and an excellent abrasion resistance, which comprises mixing the starting solid material selected from an alumina powder being able to be re-hydrated and a mixture of the alumina and other solid material with water, said starting solid material having an average particle size of 1 micron to 35 micron and a quarter deviation of particle distribution of not more than about 1.5, forming the mixture of a solid material and water into various shapes, re-hydrating the formed product by keeping it under wetted atmosphere or in water, and calcining the resulting re-hydrated product.Type: GrantFiled: April 1, 1983Date of Patent: April 24, 1984Assignee: Sumitomo Aluminum Smelting Company, LimitedInventors: Koichi Yamada, Kunio Nakazato, Katsuzo Shiraishi, Seiichi Hamano
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Patent number: 4444901Abstract: A process for the upgrading of synthesis gas is provided wherein olefin and oxygenated hydrocarbons, particularly alcohol and carboxylic acid, products predominate. The process includes contacting synthesis gas at elevated temperature and pressure in the presence of a catalyst comprising partially reduced ruthenium oxide and elemental gold. The products may be recovered and contacted with hydrogen at elevated temperature and pressure in the presence of a hydrogenation catalyst to yield alkanes, alcohols and esters useful for fuels.Type: GrantFiled: January 12, 1983Date of Patent: April 24, 1984Assignee: The Standard Oil CompanyInventors: Frederick A. Pesa, Anne M. Graham
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Patent number: 4442227Abstract: Hypochlorite ions in aqueous solution are catalytically decomposed by the action of a poly-metal spinel of cobalt preferably coated on an inert, stable support. The spinel catalyst may contain dispersed therein, optionally, other "modifier" metal oxides which contribute better adherence of the spinel to the substrate and improve the toughness of the spinel coating. The substituted cobalt spinel conforms generally to the empirical formulaM.sub.x N.sub.y Co.sub.3-(x+y) O.sub.4where zero<x.ltoreq.1; zero.ltoreq.y.ltoreq.0.5; M is at least one metal of Periodic Table Groups IB, IIA, and IIB; N is at least one metal from Group IA; and zero<(x+2y).ltoreq.1.Type: GrantFiled: October 18, 1982Date of Patent: April 10, 1984Assignee: The Dow Chemical CompanyInventor: Donald L. Caldwell
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Patent number: 4438217Abstract: A catalyst for the oxidation of propylene, said catalyst having the composition represented by the following formulaMo.sub.a W.sub.b Bi.sub.c Fe.sub.d A.sub.e B.sub.f C.sub.g D.sub.h O.sub.xwhereinA represents at least one element selected from the group consisting of nickel and cobalt,B represents at least one element selected from the group consisting of alkali metals, alkaline earth metals and thallium,C represents at least one element selected from the group consisting of phosphorus, arsenic, boron and niobium,D represents at least one element selected from the group consisting of silicon, aluminum and titanium,a, b, c, d, e, f, g, h, and x respectively represent the atomic ratios of Mo, W, Bi, Fe, A, B, C, D, and O,a is from 2 to 12,b is from 0 to 10,the sum of a and b is 12,c is from 0.1 to 10.0,d is from 0.1 to 10.0,e is from 2 to 20,f is from 0.005 to 3.0,g is from 0 to 4,h is from 0.Type: GrantFiled: December 30, 1982Date of Patent: March 20, 1984Assignee: Nippin Shokubai Kagako Kogyo Co., Ltd.Inventors: Masahiro Takata, Ryuji Aoki, Takahisa Sato
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Patent number: 4430254Abstract: A spherical cerium-activated catalyst for the NH.sub.3 synthesis is prepared by: mixing magnetite with (by weight): 2-3.5% of aluminium oxide, 0.8-2% potassium hydroxide, 2-3.5% calcium oxide, 0.1-0.4% magnesium oxide and 0.2-0.5% silica; melting this mixture in a furnace at a temperature of at least 1600.degree. C.; air-cooling the molten mass, removing melted slag; crushing the deslagged mass in a crusher and pulverizing it in a rod-mill; adding in a mixer to the so obtained powder a cerium nitrate solution in quantities to obtain in the final catalyst a metallic cerium concentration of 0.5 to 2.5%; pelletising the so added powder in a tray pelletiser to obtain a sphere shaped catalyst; drying said catalytic spheres in a furnace at 100.degree.-200.degree. C., and sintering them in an argon atmosphere at a temperature of 1250.degree.-1350.degree. C.Type: GrantFiled: September 23, 1981Date of Patent: February 7, 1984Assignee: Ammonia Casale S.A.Inventor: Attilio Passariello
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Patent number: 4416800Abstract: A method is provided for producing a catalyst and a carrier therefor in the form of sheet or honeycomb. The method comprises: beating a heat-resistant fiber such as asbesto fiber in water to form a slurry; mixing the slurry with a catalytically active agent, a carrier material therefor and/or their precursors to fix such materials in the fiber, thus forming a stock; and forming the stock into a sheet and drying the same. The sheet thus obtained may be formed into a honeycomb structure with an improved adhesive.Type: GrantFiled: March 19, 1981Date of Patent: November 22, 1983Assignee: Sakai Chemical Industry Co., Ltd.Inventors: Kazunobu Abe, Tadao Nakatsuji
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Patent number: 4415744Abstract: Aromatic compounds are nitrated in the vapor phase via a process comprising contacting the aromatic compound with a nitrating agent in the presence of a nitration promotion catalyst which comprises the adduct of:(a) an alumina-silica-metal oxide combination represented by the formula:(Al.sub.2 O.sub.3).sub.a (SiO.sub.2).sub.b (M.sub.2/n O).sub.cwherein M is a metal cation selected from the group consisting of the lanthanides or rare earths, Groups 1b, 2b, 5b, 6b, 7b, and 8 of the Periodic Table of the Elements, and mixtures thereof, and a, b, and c represent weight percent of the Al.sub.2 O.sub.3, SiO.sub.2, and M.sub.2/n O components, respectively, in the alumina-silica-metal oxide combination, with a being 0 to 100, b being 0 to 100, and c being 0 to 50, and n represents an integer from 1 to 7 of the valence of the metal cation, with the proviso that the sum of (a+b) must be greater than 0, and(b) a catalytically effective amount of sulfur trioxide.Type: GrantFiled: October 21, 1981Date of Patent: November 15, 1983Assignee: Monsanto CompanyInventors: Ignatius Schumacher, Kang-Bo Wang
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Patent number: 4407737Abstract: In the process for the preparation of catalysts for heterogeneous synthesis, particularly for the ammonia synthesis, in which a mixture of magnetite and oxides of calcium, aluminium, potassium and silicon is molten, the molten mass is air cooled, freed from the slag, crushed and powdered, the so obtained powders are pelletized and the prepared spheres are dried and sintered in an argon atmosphere, the improvement consisting in that the crushing is carried to a content of at least 80% of fine powders with a granulometry of from 325 to 400 mesh.Type: GrantFiled: January 19, 1982Date of Patent: October 4, 1983Assignee: Ammonia Casale S.A.Inventor: Attilio Passariello
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Patent number: 4408067Abstract: In a process for preparing a carboxylic acid ester from a nitrile, water and an alcohol in the vapor phase, wherein the vapor is brought into contact with a catalyst, the improvement which comprises said catalyst being a titanium containing oxide catalyst which is obtained by hydrolyzing or neutralizing a water soluble titanium salt and subsequently calcining the resulting precipitate at a temperature in a range of about 300.degree. to 750.degree. C. and having the empirical formula Ti.sub.a Me.sub.b X.sub.c O.sub.d, wherein Me represents at least one element selected from the group consisting of Cu, Ag, Au, Mg, Zn, Sn, Pb, Zr, V, Bi, Cr, W, Mo, Mn, Fe, Co and Ni and X represents at least one element selected from the group consisting of Si and Sb and the subscripts a, b, c and d designate the atomic ratio and when a is 1, b is 0.01 to 12, c is 0 to 12 and b+c is 0.01 to 12 and d is the oxygen content of the catalyst formed by the combination of the above components.Type: GrantFiled: July 28, 1981Date of Patent: October 4, 1983Assignee: Nitto Chemical Industries, Ltd.Inventors: Tomio Nakamura, Shunichi Doi
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Patent number: RE31761Abstract: A method of preparing large pore volume zirconia-silica catalyst supports, the resulting supports and a method of polymerizing olefins comprising contacting an olefin or mixture of olefins with a catalyst prepared with these supports. The supports are prepared by reacting a zirconium compound of the formula M.sub.4 Zr(C.sub.2 O.sub.4).sub.4.nH.sub.2 O, where M is an alkali metal or ammonium ion and n equals 0 to 10, with a silicon compound of the type A.sub.2 SiO.sub.3, where A is an alkali metal, in an aqueous solution at a pH equal to at least 11, then adding an acidic solution to a pH of about 5-9 to produce a hydrocogel. The hydrocogel is then aged and washed free of soluble by-products first with water, then with aqueous ammonium nitrate and again with water. The water is removed from the washed hydrocogel by azeotropic distillation or by washing with a water miscible solvent and then calcining the resulting xerocogel.Type: GrantFiled: January 17, 1983Date of Patent: December 11, 1984Assignee: Chemplex CompanyInventors: Robert A. Dombro, William Kirch