Of Molybdenum Patents (Class 502/321)
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Patent number: 5055441Abstract: A beta phase of molybdenum trioxide or the mixed metal oxides of molybdenum and tungsten is prepared by spray-freezing then freeze-drying, affording a powder which is then heated to a temperature of 275.degree. C. to 450.degree. C.Type: GrantFiled: February 1, 1990Date of Patent: October 8, 1991Assignee: E. I. du Pont de Nemours and CompanyInventors: Eugene M. McCarron, III, John B. Parise
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Patent number: 5047379Abstract: Metal oxide catalysts having one or more metal oxides covalently or non-covalently bound to or entrapped on a solid phase support wherein the metal oxide catalyst is prepared by evaporation and cocondensation in a suitable organic solvent are disclosed. Metal oxide catalysts are prepared by evaporation and cocondensation in a suitable organic solvent and dispersed on a solid support as a highly dispersed thin surface film. A process for the preparation of metal oxide catalysts prepared by evaporation and cocondensation is also disclosed. A process for the preparation of metal oxide catalysts prepared by evaporation and cocondensation of metal oxides in a suitable organic solvent and dispersed on a solid support as a high dispersed thin surface film is also disclosed.Type: GrantFiled: October 26, 1989Date of Patent: September 10, 1991Inventors: Elmer C. Alyea, Kevin F. Brown, Keith J. Fisher
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Patent number: 5036037Abstract: Process for producing catalysts for use within hydrogenation, oxidation, dehydration or dehydrogenation processes comprising oxides, in pure or mixed form, or being applied as mixed crystal systems, made of nickel, cobalt and molybdenum, vanadium, tungsten, titanium and chromium, starting with their corresponding aqueous solutions of their respective chlorides, fluorides or nitrates, which afterwards are processed within a pyrohydrolysis plant to gain the oxide powders, of typical specific surfaces areas of 1 to 100 m.sup.2 /g, agglomerate sizes of 1 to 500 microns and mean particle sizes of 20 to 30 microns. The corresponding anions of these salt solutions are transformed during pyrohydrolysis into their respective acids, which can be regained by absorptive means and which thereafter can be returned to a chemical dissolving process to make the salts and solutions for the pyrohydrolysis, which means an economic advantage.Type: GrantFiled: May 4, 1990Date of Patent: July 30, 1991Assignee: Maschinenfabrik Andritz AktiengesellschaftInventors: Wolfgang Kladnig, Heinz Krivanec
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Patent number: 5008234Abstract: Compositions of matter useful as catalysts in heterogeneous reactions and comprising metal atom clusters supported on inorganic supports such as silica, alumina or zeolites are prepared by vaporizing the metal at low temperatures and pressures into an environment of ethylene and a gaseous inert solvent. A metal-ethylene complex, protected by solvent molecules is formed. The complex is melted to liquid phase and used to impregnate the support. Then the material is warmed to ambient temperature to remove the solvent, decompose the complex and form monatomic or clusters of metal on the support.Type: GrantFiled: January 13, 1989Date of Patent: April 16, 1991Assignee: Her Majesty the Queen in the right of Canada, as represented by the Minister of Energy Mines and ResourcesInventors: Geoffrey A. Ozin, Helmut X. Huber, Richard A. Prokopowicz, John Godber
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Patent number: 4925823Abstract: Oxidation catalysts of the general formulaMo.sub.12 P.sub.a W.sub.b Sb.sub.c As.sub.d Cu.sub.e X.sub.f O.sub.xwhereX is Nb, Fe, Mn, Sn and/or Cr,a is 0.1-3,b is 0.1-4,c is <0-2,d is 0-1,e is 0-1,d+e is <0-2,f is 0-1.5,e+f is 0-2 andx is the number of oxygen atoms formally required to saturate the valencies of the other catalyst components,may be used particularly advantageously for the preparation of methacrylic acid by gas phase oxidation of methacrolein.Type: GrantFiled: June 19, 1986Date of Patent: May 15, 1990Assignee: BASF AktiengesellschaftInventors: Richard Krabetz, Gerd Duembgen, Friedbert Nees, Franz Merger, Gerd Fouquet
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Patent number: 4912077Abstract: This invention is directed to the preparation of articles exhibiting catalytic activity and, in particular, to articles which are exceptionally suitable for catalytically converting gases from organically fueled power plants, internal combustion engines, and other fluid and gaseous catalysis. The inventive articles comprise a unitary composite structure consisting essentially of a catalytically active precious metal and/or a base metal which, the base metals in particular, become catalytically active upon oxidation. The catalysts are integrally combined with a supporting structural metal.Type: GrantFiled: July 15, 1988Date of Patent: March 27, 1990Assignee: Corning IncorporatedInventors: Irwin M. Lachman, Mallanagouda D. Patil, Jimmie L. Williams, Raja R. Wusirika
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Patent number: 4910181Abstract: The catalyst composition comprises a layered metal oxide and/or sulfide of a metal selected from the group consisting of Group VB and VIB metals and containing inserted atomic hydrogen therein, with no chemical bond between said atomic hydrogen and anionic oxygen or anionic sulfur of the oxide or sulfide. It is useful for demetallizing resids.Type: GrantFiled: October 27, 1988Date of Patent: March 20, 1990Assignee: Mobil Oil CorporationInventors: Philip J. Angevine, Arthur W. Chester, Thomas F. Degnan, Garry W. Kirker
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Patent number: 4888317Abstract: A structure with encapsulated catalyst-agglomerate bodies which are integral to a porous structure is presented. The catalysts may be singly and/or multiply dispersed on and/or throughout a high surface area material and subsequently mixed with batch material prior to firing the structure. This results in a structure wherein encapsulated catalyst-agglomerate bodies in a porous structure exhibit the same catalytic activity as in a break in aged catalyst coated substrate.Type: GrantFiled: July 15, 1988Date of Patent: December 19, 1989Assignee: Corning IncorporatedInventors: Thomas P. DeAngelis, Irwin M. Lachman, Raja R. Wusirika
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Patent number: 4886582Abstract: A catalyst useful for hydroprocessing a hydrocarbon-containing oil contains at least one hydrogenation component on an amorphous, porous refractory oxide. The catalyst is prepared by impregnating support particles having a narrow pore size distribution and a mode pore diameter from about 70 to 80 angstroms with a solution containing a precursor of the hydrogenation components, followed by drying and calcining. The catalyst is useful for promoting a number of hydrocarbon hydroprocessing reactions, particularly hydrogenative desulfurization, dedemetallization and denitrogenation, and most particularyl, hydrodesulfurization of residuum-containing oils.Type: GrantFiled: June 29, 1988Date of Patent: December 12, 1989Assignee: Union Oil Company of CaliforniaInventor: Howard D. Simpson
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Patent number: 4861746Abstract: A catalyst for hydrotreating a heavy hydrocarbon oil which comprises a porous refractory inorganic oxide carrier component and at least one hydrogenating active metal component selected from nickel, cobalt and the like, the metal component concentration in the cross-section of the catalyst being the highest between the center of the cross-section and the periphery thereof.Type: GrantFiled: January 27, 1988Date of Patent: August 29, 1989Assignees: Nippon Oil Co., Ltd., Petroleum Energy Center FoundationInventors: Yasuyuki Oishi, Akira Inoue
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Patent number: 4837233Abstract: Ammoxidation of C.sub.3 to C.sub.5 acyclic alkanes with NH.sub.3 and O.sub.2 using (1) a mole ratio of alkane:NH.sub.3 in the range from 2 to 16 and a mole ratio of alkano:O.sub.2 in the range 1 to 10 and (2) a mixture of particulate catalyst composition, the first being especially effective to promote formation of an unsaturated nitrile and an olefin from the paraffin, and the second catalyst composition being especially effective to promote the conversion of the olefin to the unsaturated nitrile. Catalytic compositions useful in the process are disclosed.Type: GrantFiled: May 15, 1987Date of Patent: June 6, 1989Assignee: The Standard Oil CompanyInventors: Linda C. Glaeser, James F. Brazdil, Jr., Mark A. Toft
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Patent number: 4808563Abstract: A catalyst is disclosed which comprises a molybdenum-tungsten-containing complex represented by the formulaMo.sub.a W.sub.b M.sub.c A.sub.d O.sub.Type: GrantFiled: August 19, 1987Date of Patent: February 28, 1989Assignee: The Standard Oil CompanyInventor: Louis J. Velenyi
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Patent number: 4788173Abstract: Ammoxidation of C.sub.3 to C.sub.5 acyclic alkanes with NH.sub.3 and O.sub.2 using (1) a mole ratio of alkane:NH.sub.3 in the range from 2 to 16 and a mole ratio of alkane:O.sub.2 in the range 1 to 10 and (2) a mixture of particulate catalyst compositions, the first being especially effective to promote formation of an unsaturated nitrile and an olefin from the paraffin, and the second catalyst composition being especially effective to promote the conversion of the olefin to the unsaturated nitrile. Catalytic compositions useful in the process are disclosed.Type: GrantFiled: July 21, 1986Date of Patent: November 29, 1988Assignee: The Standard Oil CompanyInventors: Linda C. Glaeser, James F. Brazdil
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Patent number: 4781817Abstract: The present invention relates to resid hydrotreating with hydrogen bronze catalyst which unexpectedly achieve superior demetallization compared to large pore CoMo/Al.sub.2 O.sub.3 catalyst.Type: GrantFiled: December 4, 1986Date of Patent: November 1, 1988Assignee: Mobil Oil CorporationInventors: Philip J. Angevine, Arthur W. Chester, Thomas F. Degnan, Garry W. Kirker
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Patent number: 4760045Abstract: The present invention provides a catalyst for hydrotreatment of heavy oils in which at least one active metal component for hydrogenation selected from the Groups Vb, VIb and VIII of the periodic table is supported in a porous refractory carrier, the catalyst being characterized in that a distribution of the metal concentrative in each catalyst satisfies the relation of Cr.sub.1 <Cr.sub.2 in the case of R.sub.1 >R.sub.2 in the sectional surface of said catalyst, and a method for preparing the catalyst.Type: GrantFiled: June 3, 1986Date of Patent: July 26, 1988Assignee: Nippon Oil Co., Ltd.Inventors: Yasuyuki Oishi, Ken Kawakatsu, Akira Inoue
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Patent number: 4757044Abstract: A new catalyst system for the conversion of short-chain aliphatic alcohols to hydrocarbon having the formula[M].sup.m+ [X.sup.p+ Y.sub.a Z.sub.12-a O.sub.40 ].sup.-(8-p)wherein M is selected from at least one element from Group IIIA including lanthanides and actinides, or mixtures thereof,X is at least one element selected from P, Si, As, Ti, Zr, B, Co, Cu or Sn,Y and Z are independently selected from W, Mo, or V, P=is the valence of X usually within 2 to 5,m=8-pO<a.ltoreq.12.Type: GrantFiled: April 17, 1985Date of Patent: July 12, 1988Assignee: The Standard Oil CompanyInventors: Arthur J. Cooper, Frederick A. Pesa, Janie K. Currie
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Patent number: 4753916Abstract: A novel phase of molybdenum trioxide and mixed metal oxides of molybdenum and tungsten is disclosed.Type: GrantFiled: September 17, 1986Date of Patent: June 28, 1988Assignee: E. I. Du Pont de Nemours and CompanyInventors: Peter F. Carcia, Eugene M. McCarron
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Patent number: 4752460Abstract: Process for mass coloring high molecular weight organic material, which comprises using a compound of the general formula (I)(Bi,A)(V,D)O.sub.4 (I)in a tetragonal, scheelitelike crystal structure, in which A is an alkaline earth metal, Zn or a mixture thereof, D is Mo, W or a mixture thereof, and the molar ratios A:Bi and D:V are between 0.1 and 0.4 and 0 and 0.4 respectively.Processes for preparing the compounds of the formula (I) are likewise described.Type: GrantFiled: February 18, 1987Date of Patent: June 21, 1988Assignee: Ciba-Geigy CorporationInventor: Fritz Herren
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Patent number: 4737482Abstract: An improved process is provided for forming ketones from the corresponding olefins by vapor phase oxidiation of the olefin in the presence of molecular oxygen and water vapor employing a heterogeneous catalyst comprising rhenium compounds and complexes, optionally containing at least one metal compound or complex selected from the group consisting of Group VIB metals and Group VIII noble metals, and mixtures thereof. It has been surprisingly found that these catalysts effect the formation of ketones in high selectivities with minimal selectivities to the undesirable carbon dioxide and carbon monoxide by-products.Type: GrantFiled: September 16, 1985Date of Patent: April 12, 1988Assignee: Exxon Research & Engineering Co.Inventors: Chuen Y. Yeh, Charles Savini
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Patent number: 4710484Abstract: Improved supported, mixed-metal oxide oxidation catalysts are prepared by conditioning a devolatilized catalyst precursor with an alcohol prior to calacining the precursor to a finished catalyst. For example, a promoted bismuth phosphomolybdate oxidation catalyst useful for converting propylene to acrolein demonstrates enhanced performance characteristics when the devolatilized catalyst precursor is subjected to boiling ethanol prior to calcining it to a finished catalyst.Type: GrantFiled: June 25, 1982Date of Patent: December 1, 1987Assignee: The Standard Oil CompanyInventors: Serge R. Dolhyj, Wilfrid G. Shaw, Marc A. Pepera
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Patent number: 4663304Abstract: A process for the disproportionation of olefins is disclosed employing a novel catalyst comprising an inorganic oxide support contacted with at least one of tungsten or molybdenum oxide or oxide precursor and at least one acid. Method for preparation of catalyst is also provided.Type: GrantFiled: September 27, 1985Date of Patent: May 5, 1987Assignee: Phillips Petroleum CompanyInventors: Charles A. Drake, Robert E. Reusser
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Patent number: 4632747Abstract: This invention relates to the preparation and use of catalysts useful for hydroprocessing processes, such as hydrotreating, wherein said catalysts are formed by heating, at elevated temperature, in the presence of sulfur and under oxygen-free conditions, a composite of support material and one or more catalyst precursor salts containing a thiometallate anion of Mo, W or mixture thereof and a cation comprising one or more divalent promoter metals at least one of which is iron, wherein said promoter metal or metals are chelated by at least one neutral, nitrogen-containing polydentate ligand, and wherein said additional divalent promoter metal, if any, is selected from the group consisting of Ni, Co, Mn, Zn, Cu and mixture thereof.Type: GrantFiled: December 28, 1984Date of Patent: December 30, 1986Assignee: Exxon Research and Engineering CompanyInventors: Teh C. Ho, Archie R. Young, II, Allan J. Jacobson, Russell R. Chianelli
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Patent number: 4622128Abstract: Supported hydroprocessing catalysts comprising a sulfide of trivalent chromium and Mo, W or mixture thereof are obtained by compositing a preselected quantity of support material with a precursor comprising a mixture of (i) a hydrated oxide of trivalent chromium and (ii) a salt containing a thiometallate anion of Mo or W and a cation comprising the conjugate acid of at least one neutral, nitrogen-containing polydentate ligand and heating the composite in the presence of sulfur and hydrogen in an oxygen-free atmosphere. These compositions have been found to be useful hydrotreating catalysts having nitrogen removal activity superior to that of commercial catalysts derived from cobalt molybdate on alumina.Type: GrantFiled: September 28, 1984Date of Patent: November 11, 1986Assignee: Exxon Research and Engineering CompanyInventors: Archie R. Young, Teh C. Ho, Allan J. Jacobson, Russell R. Chianelli
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Patent number: 4591429Abstract: Supported, hydroprocessing catalysts comprising a sulfide of (i) trivalent chromium, (ii) Mo, W or mixture thereof and (iii) at least one metal selected from the group consisting of Ni, Co, Mn, Cu, Zn and mixture thereof and mixture thereof with Fe. These catalysts are made by compositing a preselected quantity of support material with a precursor comprising a mixture of (i) hydrated oxide of trivalent chromium and (ii) a salt containing a thiometallate anion of Mo or W and a cation comprising at least one divalent promoter metal chelated by at least one, neutral, nitrogen-containing polydentate ligand and heating the composite in the presence of sulfur and hydrogen in an oxygen-free atmosphere. These catalysts have been found to be useful hydrotreating catalysts having nitrogen removal activity superior to that of commercial catalysts such as sulfided cobalt-molybdate on alumina.Type: GrantFiled: September 28, 1984Date of Patent: May 27, 1986Assignee: Exxon Research and Engineering Co.Inventors: Teh C. Ho, Archie R. Young, II, Russell R. Chianelli, Allan J. Jacobson
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Patent number: 4588706Abstract: A catalyst composition is prepared by dissolving a suitable oxygen containing compound of a Group VIB metal (preferably Mo), a suitable compound of a Group VIII metal (preferably Ni) and phosphorous acid in water, mixing this solution with an alumina containing support material, and calcining this mixture. This catalyst composition is used primarily for hydrotreating of hydrocarbon feed stream, which contain nitrogen and sulfur impurities, particularly heavy cycle oils.Type: GrantFiled: June 24, 1985Date of Patent: May 13, 1986Assignee: Phillips Petroleum CompanyInventors: Simon G. Kukes, Stephen L. Parrott
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Patent number: 4585751Abstract: A catalyst composition is prepared by dissolving a suitable molybdenum and oxygen containing compound (preferably MoO.sub.3), a suitable divalent copper and/or manganese compound and a suitable phosphorus and oxygen containing compound (preferably H.sub.3 PO.sub.4) in water, mixing this solution with an alumina-containing support material, and calcining this mixture. This catalyst composition is used primarily for hydrotreating of hydrocarbon feed streams, which contain sulfur, vanadium and nickel impurities, particularly heavy oils.Type: GrantFiled: June 24, 1985Date of Patent: April 29, 1986Assignee: Phillips Petroleum CompanyInventors: Simon G. Kukes, Stephen L. Parrott, Karlheinz K. Brandes
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Patent number: 4567156Abstract: A catalyst is prepared by adding a water soluble aliphatic polyhydroxy compound such as a polyhydroxy alcohol or a carbohydrate (e.g., sucrose) to an aqueous solution of chromic acid and subsequently introducing the resulting mixture into a hydrocarbon material. The hydrocarbon-containing mixture is heated in the presence of hydrogen sulfide to convert the chromium catalyst precursor to a solid chromimum-containing catalyst. Hydroconversion processes utilizing the catalyst to convert oil, coal, and mixtures thereof are also provided.Type: GrantFiled: April 29, 1985Date of Patent: January 28, 1986Assignee: Exxon Research and Engineering Co.Inventors: Roby Bearden, Jr., Clyde L. Aldridge
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Patent number: 4517798Abstract: A gas generator for passing pressurized liquid monopropellants therethrough or causing exothermic decomposition of the monopropellants. A porous catalytic metal plate is used as the degeneration bed. The monopropellant decomposes exothermically upon contact with the catalytic plate. The porosity is obtained by making the plate from an alloy of the catalyst metal and one other metal, the other metal is then etched away by an acid that does not attack the catalyst metal. The porosity is controlled by the amount of other metal used. Surface areas of several hundred times the original plate surface area are obtainable. The mechanical characteristics of the metal plate allow for greater design flexibility than was available with decomposition beds made of refractory material.Type: GrantFiled: May 31, 1983Date of Patent: May 21, 1985Assignee: The United States of America as represented by the Secretary of the ArmyInventor: Thomas G. Roberts
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Patent number: 4504589Abstract: Hydroconversion catalysts containing Group VIII and/or Group VIB catalytically active metals on a support, and particularly those containing nickel and molybdenum on alumina, are improved in hydrodenitrification (HDN) activity by impregnation of additional molybdenum and/or tungsten carbonyls onto the catalyst by sublimation. Preferably from about 1 to 5% w molybdenum is added. The carbonyl impregnated catalyst is then dried, calcined and, generally sulfided before use in a hydrocarbon conversion process.Type: GrantFiled: March 26, 1984Date of Patent: March 12, 1985Assignee: Shell Oil CompanyInventor: Robert C. Ryan
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Patent number: 4499203Abstract: A catalyst for use in the hydrotreatment of hydrocarbons comprises a carrier and at least one catalytic metal selected from vanadium, molybdenum, tungsten, nickel, cobalt and/or iron; this catalyst is in the form of a plurality of juxtaposed agglomerates of acicular platelets, oriented radially to each other. It is prepared from agglomerates of activated alumina subjected to reaction with an acid and a compound providing an anion able to combine with aluminum ions in solution.Type: GrantFiled: June 17, 1983Date of Patent: February 12, 1985Assignee: Societe Francaise des Produits pour Catalyse Pro-CatalyseInventors: Herve Toulhoat, Yves Jacquin, Thierry Dupin
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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: 4467049Abstract: A catalyst used for liquefaction of coal and hydrogenolysis or hydrodesulfurization of heavy oils. The catalyst is prepared by reacting one or more compounds selected from the group consisting of carbonyl compounds of molybdenum, salts of molybdenum, oxides of molybdenum, metallic molybdenum, and alloys containing molybdenums, with alkali and water, at a temperature ranging from 220.degree. to 450.degree. C. under a carbon monoxide atmosphere; and reducing the product obtained at a temperature ranging from 400.degree. to 450.degree. C. under a hydrogen atmosphere.Type: GrantFiled: June 3, 1983Date of Patent: August 21, 1984Assignee: Toshitaka UedaInventors: Tsuneo Yoshii, Toshitaka Ueda