Of Group Vii (i.e., Mn, Tc Or Re) Patents (Class 502/241)
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Patent number: 4657885Abstract: New Fischer-Tropsch catalysts containing a Lanthanide Group element, such as cerium, exhibit improved activity over conventional catalysts and exhibit a reversal in the olefin/paraffin ratio of low molecular weight hydrocarbons. The catalyst comprises:(a) a Group VIII metal oxide;(b) a Group IIB metal oxide;(c) a Group IVB and/or VIIB metal oxide;(d) a Group IA metal oxide; and,(e) a Lanthanide group metal oxide.Type: GrantFiled: July 11, 1985Date of Patent: April 14, 1987Assignee: Exxon Research and Engineering CompanyInventors: Rocco A. Fiato, Ronny Bar-Gadda, Sabato Miseo
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Patent number: 4650781Abstract: A class of mixed oxide catalysts comprising Mn-containing oxides, alkali metals or compounds thereof, and at least one member of the group consisting of oxides of Zr, mixed oxides of Zr and Si, and mixed oxides of Zr and at least one alkaline earth metal. In the more preferred embodiments, the third component serves as a carrier for the Mn and alkaline metal components. The composition preferably comprises a major amount of the carrier material and minor amounts of the other components. The compositions are useful for hydrocarbon conversion, methane conversion, and oxidative dehydrogenation processes characterized by formation of coproduct water.Type: GrantFiled: December 18, 1984Date of Patent: March 17, 1987Assignee: Atlantic Richfield CompanyInventors: C. Andrew Jones, John A. Sofranko
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Patent number: 4636485Abstract: Pt catalyst on a substrate provides an air purification particularly for carbon oxide contained in the inhaled air is caused to react with air oxygen on the surface of carbon oxide catalysts and thus removed. But it is desirable for many air filter applications to eliminate, in addition to CO, other harmful gases from the air also. The Pt catalyst used as gaskmask filter material offers, particularly, but little protection additionally against acid gases. Due to an additional impregnation with the oxides of amine-forming heavy metals, the separating powers for acid gases is increased extraordinarily without reducing the capability of the Pt catalyst to oxidize CO catalytically. There even results an intensification of the respective effectiveness.Type: GrantFiled: February 13, 1985Date of Patent: January 13, 1987Assignee: Dragerwerk AGInventor: Carl-Ernst van der Smissen
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Patent number: 4629718Abstract: A class of mixed oxide catalysts comprising Mn-containing oxides, alkali metals or compounds thereof, and at least one member of the group consisting of oxides of Si, oxides of alkaline earth metals, and mixed oxides of Si and at least one alkaline earth metal. In the more preferred embodiments, the third component serves as a carrier for the Mn and alkali metal components. The composition preferably comprises a major amount of the carrier material and minor amounts of the other components. The compositions are useful for hydrocarbon coversion, methane conversion, and oxidative dehydrogenation processes characterized by formation of coproduct water.Type: GrantFiled: December 18, 1984Date of Patent: December 16, 1986Assignee: Atlantic Richfield CompanyInventors: C. Andrew Jones, John J. Leonard, John A. Sofranko, Howard P. Withers, E. William Breder, Jr., Marvin F. L. Johnson, John A. Jaecker
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Patent number: 4623635Abstract: A method for the preparation of a high activity palladium metal based catalyst having the formulaPdTe.sub.a Zn.sub.d E.sub.ewhereE is one or more metals from the group IIA, IVA, VA, IB, VIIB or VIII; anda, d and e are from about 0 to 3, with the proviso that at least d or e.noteq.0.The method comprises the step of forming an aqueous solution of a palladium compound, adding to the solution a powder of a reducing metal more electropositive than palladium and reducing the palladium to its metallic state on the surface of the reducing metal and, separating the resulting catalyst from the solution. Catalysts prepared according to this method are useful for producing esters from aldehydes and alcohols and provide greater conversions to the ester than catalysts prepared by previous processes.Type: GrantFiled: April 18, 1985Date of Patent: November 18, 1986Assignee: The Standard Oil CompanyInventors: Christos Paparizos, Wilfrid G. Shaw, James L. Callahan
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Patent number: 4607056Abstract: A method is provided for preparing a mixture of lower aliphatic alcohols characterized by containing a substantial proportion of aliphatic alcohols having from 2 to 6 carbon atoms by reacting a mixture of carbon monoxide and hydrogen under suitable conditions of temperature and pressure in the presence of a catalyst comprising molybdenum, a metal from the group consisting of cobalt, iron and nickel, and rhenium, said catalyst being modified by the addition of a promoter from the class consisting of potassium, cesium and rubidium, said promoter being employed at a concentration ranging from about 1.8 to 13.0 micromoles of said alkali per square meter of surface area of said catalyst.Type: GrantFiled: July 3, 1985Date of Patent: August 19, 1986Assignee: Texaco Inc.Inventors: Michael V. Grazioso, David A. Storm
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Patent number: 4607055Abstract: A method is provided for preparing a mixture of lower aliphatic alcohols characterized by containing a substantial proportion of aliphatic alcohols having from 2 to 6 carbon atoms by reacting a mixture of carbon monoxide and hydrogen under suitable conditions of temperature and pressure in the presence of a catalyst comprising molybdenum, a metal from the group consisting of cobalt, iron and nickel, and silver, said catalyst being modified by the addition of a promoter from the class consisting of potassium, cesium and rubidium, said promoter being employed at a concentration ranging from about 1.8 to 13.0 micromoles of said alkali per square meter of surface area of said catalyst.Type: GrantFiled: July 3, 1985Date of Patent: August 19, 1986Assignee: Texaco Inc.Inventors: Michael V. Grazioso, David A. Storm
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Patent number: 4604375Abstract: Single phase, unsupported, Group IA or IIA metal salt promoted manganese-containing iron spinel catalysts, having Fe:Mn atomic ratios of 2:1 and above, have been found to be highly active for the selective conversion of CO/H.sub.2 to alpha olefins.Type: GrantFiled: December 20, 1983Date of Patent: August 5, 1986Assignee: Exxon Research and Engineering Co.Inventors: Stuart L. Soled, Rocco A. Fiato
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Patent number: 4590177Abstract: Disclosed is a method for preparing dual colloid catalyst compositions wherein a gel, or colloidal suspension is formed by admixing (a) a 0.6 to 10M aqueous solution containing one or more soluble salts or complexes of one or more transition metals, wherein at least one of the transition metals is reducible and hydrolyzable, and one or more elements selected from Cr, Al, Si, Th, U, the lanthanides, and elements from Groups IA and IIA of the Periodic Table of the Elements, with (b) a 0.5 to 10N aqueous base solution. The solid material is separated from the resulting gel, or colloidal suspension and washed and dried.Type: GrantFiled: August 10, 1984Date of Patent: May 20, 1986Assignee: Exxon Research and Engineering Co.Inventors: Michael A. Richard, Thomas H. Vanderspurt, Angelo A. Montagna
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Patent number: 4588705Abstract: Disclosed is a method for preparing dual colloid catalyst compositions which are suitable for use in such processes as ammonia synthesis, carbon monoxide hydrogenation, hydrogenation and denitrogenation. The method comprises forming a gel, or suspension, by admixing: (i) one or more transition metal cyano-containing anionic-complex solutions wherein at least one solution contains a reducible transition metal, and wherein one or more of these solutions optionally contains a nonreducible metal, with (ii) one or more solutions containing polyovalent metal cations. The resulting gel, or suspension is heated at a temperature of about 90.degree. C. to about 150.degree. C. for an effective amount of time to allow hydrolysis and polymerization to occur. The resulting solid is then separated and dried.Type: GrantFiled: August 10, 1984Date of Patent: May 13, 1986Assignee: Exxon Research and Engineering Co.Inventors: Thomas H. Vanderspurt, Michael A. Richard
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Patent number: 4588708Abstract: Activated bimetallic heterogeneous catalysts are provided comprising a catalyst support having deposited thereon a solvated dispersion of cobalt and manganese. The manganese activates the catalytic activity of the cobalt.Type: GrantFiled: April 15, 1985Date of Patent: May 13, 1986Assignee: Kansas State University Research FoundationInventors: Kenneth J. Klabunde, Yuzo Imizu
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Patent number: 4581343Abstract: A pollution control catalyst for a catalytic converter in the exhaust system of an internal combustion engine, which catalyst comprises a support impregnated with (i) at least one platinum group precious metal, and with (ii) cerium base metal, or a combination of cerium and at least one other base metal, is facilely prepared by (1) impregnating a catalyst support with precursor compounds of said cerium base metal, or of said cerium base metal and of at least one other base metal, (2) activating said impregnated support, under a neutral or oxidizing atmosphere, at a temperature ranging from 120.degree. to 800.degree. C.Type: GrantFiled: May 15, 1984Date of Patent: April 8, 1986Assignee: Pro-CatalyseInventors: Gilbert Blanchard, Jean-Pierre Brunelle, Richard Doziere, Emmanuel Goldenberg, Michel Prigent
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Patent number: 4562174Abstract: The inclusion of salts of rubidium or cesium or mixtures thereof in a catalyst comprised of copper and zinc oxides and optionally manganese oxide or manganese and cobalt oxides and a stabilizer such as chromic, ceric, magnesium or aluminum oxides results in higher yields of C.sub.1 to C.sub.6 alkanols and lower production of hydrocarbons in the effluent from the catalytic reaction environment. The reactant gases passing over the catalyst comprises hydrogen and carbon monoxide and optionally carbon dioxide if economically advantageous.Type: GrantFiled: May 21, 1984Date of Patent: December 31, 1985Assignee: Alberta Gas Chemicals Ltd.Inventor: Alvin B. Stiles
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Patent number: 4559320Abstract: The disproportionation/skeletal isomerization of olefins can be carried out with high conversions and selectivity in the presence of catalyst compositions containing Group IIA and at least one of Group VIB and rhenium components.Type: GrantFiled: April 9, 1985Date of Patent: December 17, 1985Assignee: Phillips Petroleum CompanyInventor: Robert E. Reusser
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Patent number: 4559316Abstract: A catalyst is disclosed which has the formulaCu.sub.a ZrMn.sub.b Y.sub.c A.sub.d O.sub.xwhereinY is selected from the group consisting of Al, Zn, Ce, Cr, Co, Pd, Pt, Rh, Ag, Ru, Re, Os, Ta, Nb or a mixture of two or more thereof,A is an alkali or alkaline earth metal or a mixture of alkali and/or alkaline earth metals,a is from about 0.1 to about 3,b is from about 0.01 to about 3,c is from 0 to about 3,d is from about 0.02 to about 2.5, andx is the number of oxygens needed to fulfill the valance requirements of the other elements. A process for making alcohol mixtures is also disclosed which comprises contacting a gaseous reactant containing hydrogen and carbon monoxide (e.g., synthesis gas) with the foregoing catalyst.Type: GrantFiled: September 21, 1984Date of Patent: December 17, 1985Assignee: The Standard Oil CompanyInventors: Terry J. Mazanec, John G. Frye, Jr.
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Patent number: 4556731Abstract: Iron-bismuth-molybdate catalysts further containing specific promoter elements have been found to exhibit excellent redox stability even under high stress conditions in the catalytic oxidation of olefins to unsaturated aldehydes and acids.Type: GrantFiled: April 19, 1982Date of Patent: December 3, 1985Assignee: The Standard Oil CompanyInventors: Andrew T. Guttmann, Robert K. Grasselli
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Patent number: 4541915Abstract: A start-up procedure wherein a halogenated rhenium-containing catalyst, to improve its performance in reforming naphtha feeds, is contacted with water, added with the hydrogen and said feed. During the start-up period, preferably on initiation of the start-up period after aromatics production has begun, a naphtha feed, hydrogen and water are passed cocurrently through the several reactors of a reforming unit and reacted over the halogenated rhenium-containing catalyst. Water is generally added with the naphtha and hydrogen, preferably to the initial reactor of the series of reactors of the reforming unit, in concentration ranging from about 100 vppm of hydrogen to about 10,000 vppm of hydrogen, preferably from about 100 vppm to about 5000 vppm of hydrogen.Type: GrantFiled: October 1, 1984Date of Patent: September 17, 1985Assignee: Exxon Research and Engineering Co.Inventors: William C. Baird, Jr., Charles H. Mauldin
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Patent number: 4537873Abstract: A catalyst comprising precious metal particles supported on a carrier obtained from (a) titania as a first component and (b) as a second component at least one metal oxide selected from oxides of magnesium, strontium, lanthanum, yttrium, cerium, zirconium, silicon and tin, is effective for catalytic combustion of a fuel at a temperature of 400.degree. to 1500.degree. C. with excellent durability.Type: GrantFiled: November 29, 1983Date of Patent: August 27, 1985Assignee: Hitachi, Ltd.Inventors: Akira Kato, Tomoichi Kamo, Shigeo Uno, Hiroshi Kawagoshi, Hisao Yamashita, Shinpei Matsuda
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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: 4513099Abstract: Olefins are converted into other olefins having different numbers of carbon atoms by contact with a catalyst produced by combining a metal, such as tungsten or a tungsten compound, with a halosilane by adding either water or silica to the suspension of metal and halosilane and then heating to activate the catalyst.Type: GrantFiled: February 27, 1984Date of Patent: April 23, 1985Assignee: Phillips Petroleum CompanyInventors: Simon G. Kukes, Robert L. Banks
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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: 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: 4490478Abstract: An improved olefin disproportionation catalyst produced by contacting an inorganic refractory oxide containing a catalytic amount of tungsten oxide or molybdenum oxide with a promoting amount of at least one elemental metal selected from zinc and manganese.Type: GrantFiled: July 29, 1983Date of Patent: December 25, 1984Assignee: Phillips Petroleum CompanyInventors: Robert L. Banks, Simon G. Kukes
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Patent number: 4473705Abstract: A process for producing an oxalate diester is provided. The oxalate diester is produced by reacting an aliphatic alcohol, carbon monoxide and molecular oxygen at an elevated temperature and under pressure in the presence of a catalyst comprising (1) metallic palladium or a palladium compound, (2) a heteropoly-acid and (3) at least one nitrogen compound selected from the group consisting of nitric acid, nitrogen oxides and esters of nitrous acid.Type: GrantFiled: December 21, 1982Date of Patent: September 25, 1984Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Hiroshi Miyamori, Tadashi Simomura, Mituo Miura, Katsushige Hayashi
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Patent number: 4457693Abstract: A combustion catalyst containing both manganese and antimony in a temperature range of above about 1260.degree. F. has been found to result in unexpectedly high CO.sub.2 /CO ratios in the regenerator off-gas when CO is combusted.Type: GrantFiled: April 23, 1982Date of Patent: July 3, 1984Assignee: Phillips Petroleum CompanyInventor: Dwight L. McKay
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Patent number: 4456694Abstract: Olefins, carbon monoxide and hydrogen are catalytically reacted with rhodium catalysts to produce alcohols in a single step reaction.Type: GrantFiled: September 29, 1982Date of Patent: June 26, 1984Assignee: Standard Oil CompanyInventors: M. W. Blaskie, J. R. Fox, F. A. Pesa
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Patent number: 4427536Abstract: In a process for cracking a sulfur-containing hydrocarbon an improved oxidation promoter for converting SO.sub.2 to SO.sub.3 comprising an intimate association of palladium and at least one other metal selected from the group comprising platinum, osmium, iridium, rhenium, and rhodium.Type: GrantFiled: August 13, 1982Date of Patent: January 24, 1984Assignee: Chevron Research CompanyInventors: Alan W. Klaassen, Richard D. Bezman
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Patent number: 4426319Abstract: The exhaust gases from internal combustion engines are catalytically oxidized/reduced, to remove CO, unburned hydrocarbons and NO.sub.x therefrom, utilizing an improved stable and long-lived catalyst which comprises (1) a support substrate, e.g., a monolithic or particulate support, and (2) an active phase deposited thereon, said active phase (2) comprising (i) cerium, (ii) iron, (iii) at least one of the metals gallium and/or yttrium, (iv) at least one of the metals platinum and/or palladium, and (v) at least one of the metals iridium and/or rhodium.Type: GrantFiled: March 5, 1982Date of Patent: January 17, 1984Assignee: ProcatalyseInventors: Gilbert Blanchard, Jean-Pierre Brunelle, Michel Prigent
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Patent number: 4425259Abstract: A process is disclosed for the conversion of high boiling oil feeds having a significant level of Conradson carbon components and metals to form lighter oil products by contacting the feed under catalytic conversion conditions with a catalyst containing one of a select group of metal additives to catalyze the endothermic removal of carbon with CO.sub.2. Conversion conditions are such that hydrocarbonaceous material and metals are deposited to deactivate the catalyst in the conversion zone. Deactivated catalyst is partially regenerated in the presence of carbon dioxide containing gas before or after oxygen regeneration at a temperature below 1600.degree. F. to provide a regenerated catalyst which is recycled to the conversion zone for further contact with fresh feed. The metal additive is present on the catalyst in an amount sufficient to catalyze the endothermic removal of carbonaceous material in the presence of a carbon dioxide rich gas at regeneration temperature below 1500.degree. F.Type: GrantFiled: August 5, 1981Date of Patent: January 10, 1984Assignee: Ashland Oil, Inc.Inventors: William P. Hettinger, Jr., Stephen M. Kovach, James F. Hoffman
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Patent number: 4424141Abstract: Bismuth molybdate catalysts formed from a precatalyst slurry which uses an organic liquid or mixture of an organic liquid and water as the liquid medium of the slurry exhibit superior catalytic properties.Type: GrantFiled: January 5, 1981Date of Patent: January 3, 1984Assignee: The Standard Oil Co.Inventors: Robert K. Grasselli, Dev D. Suresh, Maria S. Friedrich
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Patent number: 4415752Abstract: A novel catalyst comprising the elements Mo, V and Nb, and an oxidation process, is provided for oxidizing alpha-beta unsaturated aliphatic aldehydes in the vapor phase with molecular oxygen to produce the corresponding alpha-beta unsaturated carboxylic acid.Type: GrantFiled: April 22, 1980Date of Patent: November 15, 1983Assignee: Union Carbide CorporationInventors: Harry J. Decker, Erlind M. Thorsteinson
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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: 4414411Abstract: A novel catalyst comprising the elements Mo, V and Ti, and an oxidation process, is provided for oxidizing alpha beta unsaturated aliphatic aldehydes in the vapor phase with molecular oxygen to produce the corresponding alpha-beta unsaturated carboxylic acid.Type: GrantFiled: May 5, 1980Date of Patent: November 8, 1983Assignee: Union Carbide CorporationInventors: Harry J. Decker, Erlind M. Thorsteinson
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Patent number: 4410725Abstract: A novel catalyst comprising the elements Mo, V and Ta, and an oxidation process, is provided for oxidizing alpha-beta unsaturated aliphatic aldehydes in the vapor phase with molecular oxygen to produce the corresponding alpha-beta unsaturated carboxylic acid.Type: GrantFiled: September 13, 1974Date of Patent: October 18, 1983Assignee: Union Carbide CorporationInventors: Harry J. Decker, Erlind M. Thorsteinson
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Patent number: 4407736Abstract: A hydrocarbon conversion catalyst comprising at least one platinum-group metal deposited on a composite comprising (I) alumina and (II) rhenium deposited on silica. The catalyst eliminates the need for presulfiding treatment required by conventional rhenium-promoted catalyst in reforming service, without comparative loss in reforming performance.Type: GrantFiled: April 28, 1981Date of Patent: October 4, 1983Assignee: Standard Oil Company, (Indiana)Inventors: Regis J. Pellet, Michael J. Gradassi, Ralph J. Bertolacini
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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