And Group Iv Metal (i.e., Ti, Zr, Hf, Ge, Sn Or Pb) Patents (Class 502/227)
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Patent number: 5294578Abstract: A novel method to prepare a solid acid catalyst through the reaction of a metal-alkyl halide species and the surface hydroxyl group of a solid support is disclosed. Lewis acidic metals, e.g., B, Al and Ga, etc., can then be anchored on the surface via the formation of an oxygen-metal bond. The solids containing these metals can be used as catalysts that will catalyze organic compound coversion reactions, e.g., Friedel-Crafts type reactions, olefin oligomerization, aromatic alkylation and acylation, alkane alkylation and isomerization reactions.Type: GrantFiled: December 23, 1992Date of Patent: March 15, 1994Assignee: Mobil Oil Corp.Inventors: Suzzy C. Ho, margaret M. Wu
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Patent number: 5266665Abstract: Cyclic olefin metathesis polymerization catalyst comprising metal compounds wherein said metals consist essentially of a minor amount of a transition metal which Will initiate ring-opening metathesis polymerization of a cyclic olefin and a major amount of at least one second metal which will propagate the polymerization, wherein said catalyst is essentially devoid of pyrophoric metal compounds, e.g. metal alkyls, and preformed metal carbenes. A preferred transition metal is ruthenium. Said second metal can comprise aluminum, copper, hafnium, iron (III), iridium, manganese, molybdenum, nickel, niobium, rhenium, rhodium, tantalum, titanium, tungsten, yttrium, a Lanthanide, zinc or zirconium or a mixture thereof. Using such catalyst cyclic olefin, e.g. norbornene derivatives, can be polymerized, e.g. in an extruder, even in the presence of water.Type: GrantFiled: June 1, 1990Date of Patent: November 30, 1993Assignee: Monsanto CompanyInventor: Christopher J. Hardiman
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Patent number: 5227357Abstract: A naphtha-reforming catalyst is prepared by using aluminum hydroxide as a feed stock, which is acidificated in steam at high temperature, then shaped and calcined to form .gamma.-Al.sub.2 O.sub.3 support which is supported with metals of Pt, Re and Ti and halogens. The Pt content is 0.075-0.8 Wt %, Re/Pt ratio is 0.1-3.0 (Wt.). Since the .gamma.-Al.sub.2 O.sub.3 support having high purity, high crystallinity and concentrated middle pores has been adopted, the activity, selectivity and stability of the catalyst are increased considerably while the Pt content decreased.Type: GrantFiled: March 15, 1991Date of Patent: July 13, 1993Assignee: China Petro-Chemical CorporationInventors: Fengduo Sun, Yuanguo Xu
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Patent number: 5166121Abstract: A catalytic composite comprising a combination of catalytically effective amounts of a platinum component, optionally a second metal component such as tin or rhenium, and a halogen component with a porous carrier support material is disclosed. The platinum, second metal (if present) and halogen components are present in the catalytic composite in amounts, calculated on an elemental basis, of about 0.2 to about 0.4 wt. percent platinum metal, about 0.2 to about 0.5 wt. percent the second metal, and 0.5 to about 1.5 wt. percent halogen. Moreover, the metallic components are substantially uniformly distributed throughout the porous carrier support material. The support material is spherical gamma alumina having a characteristic pore structure including "superpores" (200-10,000 nm or greater) interconnected with "mesopores" (5-20 nm), wherein 80% or more of the pore volume (N.sub.2) resides in pores of less than 150 .ANG..Type: GrantFiled: July 16, 1991Date of Patent: November 24, 1992Assignee: Engelhard CorporationInventors: Gyanesh P. Khare, Roland von Ballmoos
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Patent number: 5151400Abstract: The invention relates to a process for the preparation and activation of a catalyst, comprising a stage of fabricating a support consisting at least in part of at least one refractory oxide mineral, a stage of depositing on the support at least one metal from the platinum group, and a stage intended for forming on the support at least two metal halides of the Lewis acid type. Between the deposition of the metal halides of the Lewis acid type and the utilization of the catalyst in the reactor, the catalyst is subjected to an activation stage by being maintained in an acidic and nonoxidizing or reducing medium at a temperature between 300.degree. and 475.degree. C. so that its final content of a promoter metal of the zirconium, molybdenum tungsten or titanium type ranges from 0.15 to 1 percent, based on the weight of the support.Type: GrantFiled: July 18, 1990Date of Patent: September 29, 1992Assignee: Compagnie de Raffinage et de Distribution Total FranceInventors: Georges Szabo, Egbertus F. P. Schasfoort, Alain Milan
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Patent number: 5139991Abstract: An improved catalyst and method for the oxyhydrochlorination of methane is disclosed. The catalyst includes a pyrogenic porous support on which is layered as active material, cobalt chloride in major proportion, and minor proportions of an alkali metal chloride and of a rare earth chloride. On contact of the catalyst with a gas flow of methane, HCl and oxygen, more than 60% of the methane is converted and of that converted more than 40% occurs as monochloromethane. Advantageously, the monochloromethane can be used to produce gasoline boiling range hydrocarbons with the recycle of HCl for further reaction. This catalyst is also of value for the production of formic acid as are analogous catalysts with lead, silver or nickel chlorides substituted for the cobalt chloride.Type: GrantFiled: March 11, 1991Date of Patent: August 18, 1992Assignee: The United States of American as represented by the United States Department of EnergyInventors: Charles E. Taylor, Richard P. Noceti
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Patent number: 5128300Abstract: A novel extruded catalyst and process use thereof is disclosed. The catalyst comprises a refractory inorganic oxide and halogen, platinum-group metal, and Group IVA(14) metal components, wherein the Group IVA(14) metal is homogeneously dispersed within a bed of catalyst particles relative to catalysts of the prior art. Utilization of this catalyst in the reforming of hydrocarbons results in significantly improved selectivity to the desired gasoline product.Type: GrantFiled: September 25, 1991Date of Patent: July 7, 1992Assignee: UOPInventors: Tai-Hsiang Chao, William M. Targos, Mark D. Moser
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Patent number: 5117030Abstract: Dimethyldichlorosilane is selectively and directly synthesized by reacting methyl chloride with silicon in the presence of (.alpha.) a catalytically effective amount of metallic copper or a copper compound and a promoter (.beta.) therefor, such promoter (.beta.) comprising (.beta..sub.1) metallic tin and/or metallic anitmony or a tin and/or antimony compound, optionally, (.beta..sub.2) metallic zinc or a zinc compound, and (.beta..sub.3) at least one lanthanide compound; alternatively, the promoter (.beta.) comprises (.beta..sub.1), optionally, (.beta..sub.2), (.beta..sub.3) and (.beta..sub.4) at least one alkali metal or alkali metal compound.Type: GrantFiled: July 31, 1991Date of Patent: May 26, 1992Assignee: Rhone-Poulenc ChimieInventors: Roland Cattoz, Guy Godde, Jean-Louis Plagne
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Patent number: 5116796Abstract: The present invention discloses two polyoxoanion supported metal complexes found to be useful in olefin hydrogenation. The complexes are novel compositions of matter which are soluble in organic solvents. In particular, the compositions of matter comprise A.sub.x [L.sub.n Ir.sup.(I) .multidot.X.sub.2 M.sub.15 M'.sub.3 O.sub.62 ].sup.x- and A.sub.y [L.sub.n Ir.sup.(I) .multidot.X.sub.2 M.sub.9 M'.sub.3 O.sub.40 ].sup.y- where L is a ligand preferably chosen from 1,5-cyclooctadiene (COD), ethylene, cyclooctene, norbornadiene and other olefinic ligands; n=1 or 2 depending upon the number of double bonds present in the ligand L; X is a "hetero" atom chosen from B, Si, Ge, P, As, Se, Te, I, Co, Mn and Cu; M is either W or Mo; M' is preferably Nb or V but Ti, Zr, Ta, Hf are also useful; and A is a countercation preferably selected from tetrabutyl ammonium and alkali metal ions.Type: GrantFiled: October 26, 1988Date of Patent: May 26, 1992Assignee: The University of OregonInventors: David J. Edlund, Richard G. Finke, Robert J. Saxton
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Patent number: 5112992Abstract: The addition of hafnium to oxidation catalysts provided by a heavy transition metal-bromine ion catalyst combination containing cobalt-manganese-bromine or manganese-bromine or cobalt-bromine and a soluble source of hafnium uniquely increases catalytic activity of the said catalyst combination for converting methyl groups on the benzene nucleus. The presence of hafnium in the total reactor contents is equal to or less than 250 parts per million by weight of the total reactor mother liquor. The solubility of the hafnium in the reactor solvent is such that reactor product cake contains less than 0.3 ppm by weight. Bromine emissions can be reduced.Type: GrantFiled: June 6, 1991Date of Patent: May 12, 1992Assignee: Amoco CorporationInventors: Frank G. Belmonte, Kristi A. Fjare, Walter Partenheimer
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Patent number: 5107027Abstract: Disclosed is a method for preparation of alkylamines which comprises reacting ammonia and a monounsaturated olefin in the presence of a catalyst selected from the group consisting of:a. Acid modified montmorillonite clays;b. Heterogenous catalyst comprising a fluorine-containing compound on an inert support; andc. Heteropoly acids on an inert support.Type: GrantFiled: August 1, 1990Date of Patent: April 21, 1992Assignee: Texaco Chemical CompanyInventors: John F. Knifton, Neal J. Grice
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Patent number: 5106809Abstract: Tin modified platinum-iridium catalysts provide high yields of C.sub.5 + liquid reformate in catalytic reforming, concurrent with high activity. In particular, the tin modified platinum-iridium catalysts are of unusually high selectivity, as contrasted with known iridium promoted platinum catalysts. The high selectivity is manifested in reforming a naphtha feed in a reactor charged to capacity with the catalyst, but particularly when used in the dehydrocyclization zone, or tail reactor of a series of reactors, while the lead reactors of the series contain a non tin-containing platinum catalyst, especially a platinum-iridium, or a platinum-rhenium catalyst. The tin modified platinum-iridium catalysts are also highly active, with only moderate loss in the high activity for which iridium stabilized platinum catalysts are known.Type: GrantFiled: December 14, 1990Date of Patent: April 21, 1992Assignee: Exxon Research and Engineering CompanyInventors: William C. Baird, Jr., George A. Swan, III, Joseph P. Boyle
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Patent number: 5081290Abstract: There is provided a process for the partial oxidation of a polymethylbenzene to the corresponding aromatic polycarboxylic acid, which process comprises contacting in a reaction zone said polymethylbenzene with molecular oxygen in the presence of an oxidation catalyst comprising at least one heavy-metal compound, said heavy-metal compound being acetate free, a source of bromine, and a non-metal acetate compound, the concentration of acetate in the reaction zone being employed to control the rate of oxidation and the selectivity of oxidation.There is also provided the catalyst that is employed in the process.Type: GrantFiled: June 21, 1990Date of Patent: January 14, 1992Assignee: Amoco CorporationInventors: Walter Partenheimer, Diane J. Graziano
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Patent number: 5019652Abstract: An improved catlayst and method for the oxyhydrochlorination of methane is disclosed. The catalyst includes a pyrogenic porous support on which is layered as active material, cobalt chloride in major proportion, and minor proportions of an alkali metal chloride and of a rare earth chloride. On contact of the catalyst with a gas flow of methane, HC1 and oxygen, more than 60% of the methane is converted and of that converted more than 40% occurs as monochloromethane. Advantageously, the monochloromethane can be used to produce gasoline boiling range hydrocarbons with the recycle of HCl for further reaction. This catalyst is also of value for the production of formic acid as are analogous catalysts with lead, silver or nickel chlorides substituted for the cobalt chloride.Type: GrantFiled: April 30, 1990Date of Patent: May 28, 1991Assignee: The United States as represented by the United States Department of EnergyInventors: Charles E. Taylor, Richard P. Noceti
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Patent number: 4861744Abstract: A novel catalyst is prepared by codepositing hexavalent chromium oxide and a transition metal compound, preferably titanium trichloride, on alumina, followed by fluorinating the resulting combination. The catalyst is useful in the fluorination of a haloethylene of the formula CX.sub.2 .dbd.CHX (where the X's are chlorine or bromine or a combination of the two) in the vapor phase to form 1,1,1,2-tetrafluoroethane.Type: GrantFiled: September 26, 1988Date of Patent: August 29, 1989Assignee: LaRoche Chemicals, Inc.Inventor: Igor Sobolev
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Patent number: 4845275Abstract: An improved process for the manufacture of trimellitic acid from pseudocumene feedstock is disclosed. In this process, lead (IV) is used as a catalyst component in addition to the cobalt, manganese, and zirconium catalyst. The use of lead (IV) reduces higher boiling impurities and improves the yield. In our novel process, pseudocumene is converted to trimellitic acid which is used to manufacture plasticizers and polyamide-imide polymers used as molding compounds for replacement of metals.Type: GrantFiled: September 26, 1988Date of Patent: July 4, 1989Assignee: Amoco CorporationInventors: Wayne P. Schammel, Michael R. Green
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Patent number: 4845064Abstract: Catalysts for the preparation of alkyl halides produced by reacting (1) transition metal carbonyl complex capable of oxidatively adding H.sub.2 or HCl and (2) a Lewis acid from the group consisting of aluminum halides, antimony halides and mixtures thereof, with an adsorbent solid containing surface hydroxyl groups, in a solvent.Type: GrantFiled: January 6, 1987Date of Patent: July 4, 1989Assignee: University of FloridaInventors: Russell S. Drago, Cindy S. Goldstein
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Patent number: 4825014Abstract: Chlorotrifluoromethylbenzene is prepared with a good yield by reacting chlorotoluene, hydrogen fluoride and chlorine in a gaseous phase in the presence of a catalyst selected from the group consisting of .alpha.-aluminum fluoride, .alpha.-aluminum fluoride carrying one or more salts of iron, bismuth, tin and lead, and chromium(III) oxide or partially fluorinated chromium(III) oxide carrying alkali metal fluoride.Type: GrantFiled: June 15, 1988Date of Patent: April 25, 1989Assignee: Daikin Kogyo Co., Ltd.Inventors: Yohnosuke Ohsaka, Heikitsu Sonoyama
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Patent number: 4812435Abstract: A catalyst useful for reforming a naphtha feed at reforming conditions which comprises an iridium component dispersed throughout and bound within an alumina support matrix, a platinum component dispersed upon said iridium-containing alumina support, and halogen. In all of its aspects, the iridium component will remain in its dispersed state, without significant agglomeration, when subjected to temperature in the presence of oxygen for extended periods sufficient to agglomerate presently known halogenated platinum-iridium catalysts. This catalyst is prepared in an initial step by dispersing the iridium within the alumina matrix, and then calcining the iridium-containing alumina at high temperature to bind the iridium within the alumina support matrix. The platinum, or platinum and additional metal promoters, especially rhenium, is then impregnated upon the iridium-alumina support.Type: GrantFiled: February 19, 1988Date of Patent: March 14, 1989Assignee: Exxon Research and Engineering CompanyInventor: William C. Baird, Jr.
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Patent number: 4798818Abstract: What is described is a process for preparing a more effective catalyst for the vapor-phase reaction of 1,1,1,3-tetrachloropropane with anhydrous hydrogen fluoride to produce 3,3,3-triflurorpropene-1. The process comprises (A) mechanically mixing, in the absence of water, of (i) aluminum fluoride which has been prepared at temperatures less than about 400.degree. C. and (ii) a transition metal compound, the transition metal compound being selected from a group consisting of compounds of cobalt, chromium, iron, manganese, nickel, titanium, and vanadium; and (B) contacting the mechanical mixture with sufficient anhydrous HF to convert the transition metal compound to a transition metal fluoride. Also described is the catalyst. Additionally, a process for the preparation of 3,3,3-trifluoropropene-1 in which the catalyst is utilized is described.Type: GrantFiled: November 27, 1987Date of Patent: January 17, 1989Assignee: Dow Corning CorporationInventors: William X. Baizer, Robert L. Bixler, Jr., Michael D. Meddaugh, Antony P. Wright
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Patent number: 4791087Abstract: A novel trimetallic catalytic composite, a method of manufacture and process use thereof is dislcosed. The composite comprises a refractory support having a nominal diameter of at least 650 microns and having deposited thereon a uniformly dispersed platinum component, a uniformly dispersed Group IVA metal component and a surface-impregnated metal component selected from the group consisting of rhodium, ruthenium, cobalt, nickel, or iridium. When this catalytic composite is used in the reforming of hydrocarbons at low pressures, significant improvements in activity stability is observed compared to catalysts of the prior art.Type: GrantFiled: June 23, 1987Date of Patent: December 13, 1988Assignee: UOP Inc.Inventors: Mark D. Moser, R. Joe Lawson
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Patent number: 4774216Abstract: A solid composition of matter is disclosed consisting essentially of sodium, potassium, a Group IA metal or a Group IA metal and a Group IIA metal, titanium, oxygen and, optionally, at least one of a halogen and tin, in which at least one of the sodium, the potassium, the Group IA metal or the Group IIA metal is present in an amount in excess of any amount present in electrically neutral compounds of the metal, the titanium and oxygen.The above compositions are particularly useful as solid contact materials for the oxidative conversion of feed organic compounds to product organic compounds, particularly in the presence of a free oxygen containing gas. A method for such conversion is also disclosed.Type: GrantFiled: December 8, 1986Date of Patent: September 27, 1988Assignee: Phillips Petroleum CompanyInventors: John H. Kolts, James B. Kimble
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Patent number: 4774219Abstract: Process of preparing a bimetallic catalyst comprising(a) applying a titanium compound to an inorganic carrier;(b) applying, simultaneously with or after applying the titanium compound, to the inorganic carrier at least one additive which is selected from the group consisting of a bromine compound, a fluorine compound and an iodine compound;(c) applying, simultaneously with or after applying the additive, to the inorganic carrier a vanadium compound;(d) drying the carrier; and(e) subjecting the carrier to a heat treatment at a temperature between 200.degree. C. and 800.degree. C.Type: GrantFiled: August 6, 1987Date of Patent: September 27, 1988Assignee: Shell Oil CompanyInventors: Gosse Boxhoorn, Petrus F. A. Van Grinsven, Alex G. G. Limahelu
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Patent number: 4761393Abstract: A method for placing catalytically active alkali metal ion on a catalyst support to make an in situ catalyst is disclosed. Specifically, the method contemplates providing a quantity of a suitable catalyst support in a particulate form, providing a gaseous feed stream containing a predetermined amount of the alkali metal ion in the form of a volatile alkali metal compound, and contacting the catalyst support with the volatile alkali metal ion-containing feed stream for a time period sufficient to deposit at least some of the alkali metal present in the feed stream onto the thus-contacted catalyst support.Type: GrantFiled: July 27, 1987Date of Patent: August 2, 1988Assignee: Amoco CorporationInventors: Marc O. Baleiko, Edward F. Rader
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Patent number: 4745211Abstract: A process for preparation of a purified bis(2-hydroxyethyl) ester of 2,6-naphthalenedicarboxylic acid wherein 2,6-naphthalenedicarboxylic acid is reacted with a catalyst comprised of a tertiary amine and a titanium-containing compound in order to produce the ester.Type: GrantFiled: September 15, 1987Date of Patent: May 17, 1988Assignee: Eastman Kodak CompanyInventors: Winston J. Jackson, Jr., Thomas H. Wicker, Jr.
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Patent number: 4737483Abstract: A pretreatment method is disclosed for a hydrocarbon conversion catalyst formulation which results in significantly improved yield performance. The pretreatment method involves contacting a catalyst comprising a refractory support containing a platinum component, a tin component and a surface-impregnated promoter metal in the absence of hydrocarbons with a gas containing hydrogen at a temperature, pressure, and period of time sufficient to result in improved yield performance when compared to a non-pretreated catalyst.Type: GrantFiled: May 4, 1987Date of Patent: April 12, 1988Assignee: UOP Inc.Inventors: Mark D. Moser, R. Joe Lawson
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Patent number: 4724225Abstract: A solid catalyst component which can produce .alpha.-olefin polymers having a high stereoregularity and a good powder fluidity, stably and with a good efficiency in gas phase polymerization, particularly in gas phase copolymerization, a catalyst for .alpha.-olefin polymerization using the above solid catalyst component and a process for producing the above catalyst component, are provided,which solid catalyst component is charcterized in that it contains titanium as an active ingredient and is in the form of hollow fine particles, andwhich process is characterized by adding a reaction product (I) of an organoaluminum compound (A) with an electron dnor (B.sub.1) to TiCl.sub.4 and reacting these under agitation in a baffle ratio of 0.35 or less with a power required for agitation of 2.50 KW/m.sup.3 or less at a temperature of 0.degree. to 70.degree. C. for a period of 1 to 10 hours and further reacting an electron donor (B.sub.Type: GrantFiled: November 28, 1986Date of Patent: February 9, 1988Assignee: Chisso CorporationInventors: Hiroshi Shimizu, Toshihiro Uwai, Masami Tachibana
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Patent number: 4719190Abstract: Method of preparing a hydrocarbon conversion and polymerization catalyst comprising reacting an adsorbent containing surface hydroxyl groups with a Lewis acid in a halogenated organic solvent.Type: GrantFiled: October 22, 1986Date of Patent: January 12, 1988Assignee: University of FloridaInventors: Russell S. Drago, Edward E. Getty
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Patent number: 4677094Abstract: A novel trimetallic catalytic composite, a method of manufacture and process use thereof is disclosed. The composite comprises a refractory support having a nominal diameter of at least 650 microns and having deposited thereon a uniformly dispersed platinum component, a uniformly dispersed tin component and a surface-impregnated metal component selected from the group consisting of rhodium, ruthenium, cobalt, nickel, iridium and mixtures thereof. When this catalytic composite is used in the reforming of hydrocarbons at low pressures significant improvements in activity stability is observed compared to catalysts of the prior art.Type: GrantFiled: September 22, 1986Date of Patent: June 30, 1987Assignee: UOP Inc.Inventors: Mark D. Moser, Randy J. Lawson
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Patent number: 4677237Abstract: A novel dehydrogenation process is disclosed. This process comprises contacting dehydrogenatable hydrocarbons with a catalytic composite comprising a platinum component, a tin component, a potassium component, a lithium component, and an alumina support, wherein the lithium to potassium atomic ratio of said catalytic composite is in the range of from 3:1 to 5:1. The process of the invention has particular utility for the dehydrogenation of C.sub.3 -C.sub.30 paraffins.Type: GrantFiled: November 14, 1986Date of Patent: June 30, 1987Assignee: UOP Inc.Inventors: Tamotsu Imai, Hayim Abrevaya
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Patent number: 4650778Abstract: Metal halide particles useful, among other things, as olefin polymerization catalyst precursors and catalyst supports are prepared by vaporizing the metal halide and then condensing it in the presence of a diluent.Type: GrantFiled: January 18, 1985Date of Patent: March 17, 1987Assignee: E. I. Du Pont de Nemours and CompanyInventors: Ulrich Klabunde, Rolf Mulhaupt
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Patent number: 4608360Abstract: A novel catalytic composite is disclosed. Also disclosed is a use for the novel composite and a method for preparing the same. The catalytic composite comprises a Group VIII, noble metal component, a co-formed IVA metal component, an alkali metal or alkaline earth metal component and an alumina support having a surface area of from 5 to 150 m.sup.2 /g. Additionally the alumina support is such that less than about 18% of the total pore volume of the support is associated with pores having mean diameters of about 300 Angstroms or less and more than about 55% of the total pore volume of the support is associated with pores having mean diameters of about 600 Angstroms or more. The novel catalytic composite has particular utility as a paraffin dehydrogenation catalyst.Type: GrantFiled: July 2, 1985Date of Patent: August 26, 1986Assignee: UOP Inc.Inventors: Hayim Abrevaya, Tamotsu Imai
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Patent number: 4595673Abstract: A novel hydrocarbon conversion catalyst is disclosed. Additionally, a method of preparing the catalyst and a process for its use are disclosed. The catalyst comprises a platinum group component, a Group IVA component and an alkali component on a carrier material. The alkali component further comprises from about 0.05 to about 10.0 wt. %, on the weight of the composite, of a second alkali metal. The catalyst has particular utility as a dehydrogenation catalyst.Type: GrantFiled: November 29, 1984Date of Patent: June 17, 1986Assignee: UOP Inc.Inventors: Tamotsu Imai, Hayim Abrevaya
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Patent number: 4593016Abstract: A concentrate of a palladium-tin colloidal catalyst is obtained by dissolving stannous chloride in HCl, diluting the solution with HCl and then further diluting the solution with deionized water to thereby obtain a diluted stannous chloride solution. This solution is cooled to room temperature or below. A palladium chloride solution is obtained by dissolving palladium chloride in HCl which in turn is also cooled to room temperature or below. The palladium chloride solution is gradually added to the stannous chloride solution and mixed at about room temperature in order to obtain a homogeneous solution. The temperature of the solution is then gradually increased to about 105.degree. C. to about 110.degree. C. and maintained at that temperature for sufficient time to obtain a homogeneous solution of substantially uniform colloidal particles. The solution of colloidal particles is slowly cooled to about room temperature.Type: GrantFiled: February 14, 1985Date of Patent: June 3, 1986Assignee: International Business Machines CorporationInventors: William J. Amelio, Dae Y. Jung, Voya Markovich, Carlos J. Sambucetti
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Patent number: 4534953Abstract: A process for preparing solid titanium trichloride useful for the polymerization of an .alpha.-olefin, which comprises precipitating violet-colored fine solid particles of titanium trichloride at a temperature of not higher than 150.degree. C. from a liquid of titanium trichloride liquefied in the presence of an ether, characterized in that after the amount of the precipitated violet-colored fine solid particles of titanium trichloride reaches at least 80% based on the total amount of titanium trichloride in the system, titanium tetrachloride is added in an amount within a molar ratio of from 0.2 to 10 based on the total amount of titanium trichloride in the system, followed by aging at a temperature of from 60.degree. to 120.degree. C.Type: GrantFiled: June 29, 1983Date of Patent: August 13, 1985Assignee: Mitsubishi Chemical Industries, Ltd.Inventors: Nobuaki Goko, Yumito Uehara
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Patent number: 4522935Abstract: A new catalyst for converting hydrocarbons, especially for reforming hydrocarbons, is disclosed. Also disclosed is a hydrocarbon conversion process using the catalyst as well as a method for making the catalyst. The catalyst comprises a platinum group component, a tin component, an indium component and a halogen component with a porous support material, wherein the atomic ratio of indium to platinum group component is more than about 1.14. In a preferred embodiment of the invention the catalyst is utilized in the catalytic reforming of hydrocarbons boiling in the gasoline range to produce a high octane reformate suitable for gasoline blending or a high aromatics content reformate suitable for use as a petrochemical feedstock.Type: GrantFiled: October 7, 1983Date of Patent: June 11, 1985Assignee: UOP Inc.Inventors: Delmar W. Robinson, Russell W. Johnson, Mark D. Moser
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Patent number: 4520122Abstract: A broad variety of modified inorganic oxides may be prepared by surface-metallating the oxide with a metal tetrahalide followed by displacement of a halogen bonded to the metal by a nucleophilic organic functional group. The results are organic moieties coating the surface of the oxide by being covalently bonded to a metal which, in turn, is covalently bonded to an oxygen originally associated with a surface hydroxyl of the inorganic oxide.Type: GrantFiled: December 5, 1983Date of Patent: May 28, 1985Assignee: UOP Inc.Inventor: Blaise J. Arena
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Patent number: 4507494Abstract: In a process for preparing a diester of oxalic acid by the vapor phase catalytic reaction of carbon monoxide with an ester of nitrous acid in the presence of a catalyst composed of a solid carrier and a catalyst component supported on the carrier, the improvement wherein said catalyst component is composed of(a) a platinum-group metal or a salt thereof, and(b) at least one member selected from the group consisting of Ti and an oxide thereof.Type: GrantFiled: January 24, 1983Date of Patent: March 26, 1985Assignee: Ube Industries, Ltd.Inventors: Haruhiko Miyazaki, Yasushi Shiomi, Satoru Fujitus, Katsuro Masunaga, Hiroshi Yanagisawa
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Patent number: 4506032Abstract: This invention relates to a new catalyst for converting hydrocarbons. The catalyst comprises a platinum group component, a Group IVA component, especially tin, an alkali or alkaline earth component, more than 0.2 weight %, calculated on an elemental basis, of a halogen component and a porous carrier material, wherein the atomic ratio of the alkali or alkaline earth component to the platinum group component is more than 10. The catalyst is particularly useful for dehydrogenating paraffins having from 2 to 5 or more carbon atoms to the corresponding mono-olefins, or for dehydrogenating mono-olefins having from 3 to 5 or more carbon atoms to the corresponding di-olefins.Type: GrantFiled: October 14, 1983Date of Patent: March 19, 1985Assignee: UOP Inc.Inventors: Tamotsu Imai, Chi-Wen Hung
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Patent number: 4487848Abstract: A new catalyst for converting hydrocarbons, especially for reforming hydrocarbons, is disclosed. Also disclosed is a hydrocarbon conversion process using the catalyst as well as a method for making the catalyst. The catalyst comprises a platinum group component, a tin component, an indium component and a halogen component with a porous support material, wherein there is about 0.6 or more wt. %, on an elemental basis, indium present. In a preferred embodiment of the invention the catalyst is utilized in the catalytic reforming of hydrocarbons boiling in the gasoline range to produce a high octane reformate suitable for gasoline blending or a high aromatics content reformate suitable for use as a petrochemical feedstock.Type: GrantFiled: June 2, 1983Date of Patent: December 11, 1984Assignee: UOP Inc.Inventors: Delmar W. Robinson, Russell W. Johnson, Mark D. Moser
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Patent number: 4486547Abstract: A new catalyst composition comprising a platinum group component, a tin component, an indium component, an alkali or alkaline earth component and a porous support material wherein the atomic ratio of indium to platinum group component is more than 1.0 is disclosed. The catalyst is particularly useful for dehydrogenating hydrocarbons. In one embodiment of the invention, detergent range normal paraffins (C.sub.10 -C.sub.15 or higher) are dehydrogenated to the corresponding normal olefins in the presence of the subject catalyst and hydrogen.Type: GrantFiled: June 2, 1983Date of Patent: December 4, 1984Assignee: UOP Inc.Inventors: Tamotsu Imai, Chi-wen Hung
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Patent number: 4483941Abstract: Catalysts producing a sharply peaked alkoxylation distribution during the alkoxylation of organic materials comprise mixtures of BF.sub.3 and metal alkyls or metal alkoxides, SiF.sub.4 and metal alkyls or metal alkoxides, or mixtures of these catalysts.Type: GrantFiled: September 2, 1982Date of Patent: November 20, 1984Assignee: Conoco Inc.Inventor: Kang Yang
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Patent number: 4480048Abstract: New catalysts, useful for performing hydrocarbons conversions such as reforming, production of aromatics, isomerization of paraffinic and aromatic hydrocarbons, hydrocracking, hydrodealkylation and steam-dealkylation, are formed of a carrier such as alumina and active elements comprising a noble metal of the platinum family, titanium, at least one metal selected from manganese, technetium and rhenium, and halogen, said catalysts being advantageously used as a moving bed.Type: GrantFiled: May 24, 1983Date of Patent: October 30, 1984Assignee: Societe Francaise des Produits Pour Catalyse Pro-Catalyse chez Institute Francais Du PetroleInventors: Jean-Paul Bournonville, Jean Miquel
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Patent number: 4480132Abstract: Disclosed is a process for the preparation of .alpha.,.beta.-unsaturated ketones containing a 2-oxopropylidene moiety by the reaction of an aldehyde with a 2,2-dialkyl-4-methyl-6-keto-1,3-dioxene in the presence of a catalytic amount of certain metallic halides.Type: GrantFiled: November 21, 1983Date of Patent: October 30, 1984Assignee: Eastman Kodak CompanyInventors: William T. Brown, Robert M. Simons
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Patent number: 4471069Abstract: This invention relates to a novel catalyst for reforming gasoline comprising a low valence titanium, vanadium and/or chromium metallic component composited with a non-oxidizing high surface area support. The low valence metallic component is present in divalent form or as a combination of the metallic state and the divalent form - preferably as a chloride and/or bromide. The preferred support is a high surface area coke.Type: GrantFiled: July 18, 1983Date of Patent: September 11, 1984Assignee: Energy Modification, Inc.Inventor: William K. T. Gleim
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Patent number: 4469811Abstract: A process is described wherein C.sub.2 -C.sub.4 paraffins are dehydrogenated over a catalyst which has been prepared by(a) impregnating an Al.sub.2 O.sub.3 carrier with an aqueous solution of a Sn-compound;(b) calcining the impregnated carrier;(c) impregnating the composition with an aqueous solution of a Pt-compound;(d) reducing the composition;(e) removing at least part of any halogen introduced in step (a) and/or (c) by treating the composition with a non-acidic solution comprising NH.sub.4.sup.+ ions until the halogen content of the final catalyst amounts to less than 0.1% w; and(f) impregnating the composition with a non-acidic (halogen-free) aqueous solution of an alkali metal compound.The C.sub.2 -C.sub.4 -olefins formed are converted to aromatic gasoline over a catalyst containing a crystalline metal silicate having a ZSM-5 structure.Type: GrantFiled: June 16, 1983Date of Patent: September 4, 1984Assignee: Shell Oil CompanyInventor: Jacques P. Lucien
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Patent number: 4436948Abstract: The oligomerization of olefins to give lube oil range products can be improved by the use of a catalyst containing a Group IIIA metal and one or more metals from Group IV.Type: GrantFiled: September 7, 1982Date of Patent: March 13, 1984Assignee: Phillips Petroleum CompanyInventor: Rex L. Bobsein
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Patent number: 4434081Abstract: Titanium trichloride catalytic component and homo- or co-polymerization of .alpha.-olefin by employing the titanium trichloride catalytic component combined with organic aluminium compound, wherein the titanium trichloride catalytic component is prepared by a process comprising the following steps:first step: reducing titanium tetrachloride with an organoaluminum compoundsecond step: treating the resultant reduced solid, which is obtained by the first step, with an organic ether compoundthird step: reacting the treated solid, which is obtained by the second step, with titanium tetrachlorideand whose objects lie in producing polymer of high stereo-regularity advantageously by carrying out reaction of the first step in a single solvent of aromatic compound or a mixed solvent of aliphatic hydrocarbon and aromatic compound.Type: GrantFiled: February 13, 1981Date of Patent: February 28, 1984Assignee: Toyo Stauffer Chemical Co., Ltd.Inventors: Yoshikazu Takahashi, Yoichi Sunada, Toshiharu Tokuhara, Masaru Takitani
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Patent number: 4430198Abstract: An improved hydrotreating catalyst, and a process for using thereof, comprises a conventional Group VIA and Group VIIIA metal metal oxide or metal sulfide, deposited on an inorganic refractory support and about 0.1% by weight to about 7% by weight of the catalyst of a promoter comprising a halogenated metal selected from the Group consisting of halogenated metals of Group IB, IIB, IIIB, titanium and tin. The presence of the promoter results in greater degree of desulfurization and in CCR reduction of hydrocarbon feedstocks, especially highly aromatic petroleum residua and synthetically-derived hydrocarbons, e.g., coal liquids.Type: GrantFiled: September 28, 1982Date of Patent: February 7, 1984Assignee: Mobil Oil CorporationInventors: Roland H. Heck, Edward J. Rosinski, Stuart S. Shih
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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