Of Group I (i.e., Alkali, Ag, Au Or Cu) Patents (Class 502/243)
  • Patent number: 4780448
    Abstract: A catalyst containing copper and silica is prepared by a process in which an aqueous alkali metal silicate solution containing from 1 to 26% by weight of SiO.sub.2 is brought to a pH of from 0.5 to 2.0 with nitric acid, an aqueous copper nitrate solution containing from 5 to 15% by weight of Cu is added, after the addition of the nitric acid, so that a clear solution containing from 0.18 to 3.0 moles of Cu per mole of SiO.sub.2 is formed, the resulting solution is mixed with an aqueous alkali metal carbonate solution at from 40.degree. to 80.degree. C., the pH of the mixture being kept at from 7.5 to 8.5, and the precipitated material is separated off, dried, calcined by heating at from 250.degree. to 400.degree. C. and pressed in a conventional manner to give catalyst moldings. The catalyst thus obtained is used for the hydrogenation of dialkyl dicarboxylates to diols.
    Type: Grant
    Filed: January 30, 1987
    Date of Patent: October 25, 1988
    Assignee: BASF Aktiengesellschaft
    Inventors: Franz J. Broecker, Rolf Fischer, Klaus-Dieter Malsch, Wolfgang Reiss, Rolf Schnabel, Hans-Martin Weitz
  • Patent number: 4780447
    Abstract: A catalyst, which is capable of controlling not only HC, CO and NOx, but also H.sub.2 S emission from the tail pipe of catalytic converter-equipped automobiles, is made of noble metals promoted with ceria-rich rare earth oxides, preferably doubly promoted along with alkali metal oxides, and oxides of nickel and/or iron as an H.sub.2 S gettering ingredient. The oxides of nickel and/or iron are present in an H.sub.2 S gettering effective amount and in an amount up to 10 wt %. The alumina support can have additionally from 0 to 20% SiO.sub.2 present.
    Type: Grant
    Filed: July 10, 1987
    Date of Patent: October 25, 1988
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Gwan Kim, Michael V. Ernest, Stanislaw Plecha
  • Patent number: 4774221
    Abstract: Supported catalysts containing palladium on a support material are improved by added bases which remain on the material. These supported catalysts are useful for hydrogenating optionally substituted phenols to give the corresponding cyclohexanols as the predominant product.
    Type: Grant
    Filed: October 20, 1986
    Date of Patent: September 27, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventors: Harald Medem, Udo Birkenstock, Herbert Schmidt, Burkhard Lachmann
  • Patent number: 4772578
    Abstract: Metal vapor may be deposited on catalyst supports to produce a first supported metal. The first supported metal may be converted into a supported metal catalyst by contacting the first supported metal with a solution of ions of a catalytic metal, which will electrodeposit on the support. This process is an alternative to the impregnation method preparing catalysts.
    Type: Grant
    Filed: May 26, 1987
    Date of Patent: September 20, 1988
    Assignee: The Dow Chemical Company
    Inventor: Robert G. Bowman
  • Patent number: 4769356
    Abstract: Catalysts of reduced cost, for purifying exhaust gases, having smaller thermal expansion coefficients than conventional catalysts, good mechanical strength and large specific surface area are provided at low temperatures. The composition composed of at least re-hydrable alumina, an alkali or alkaline earth metal titanate and fused silica is thermally processed at comparatively low temperatures so as to provide ceramic catalyst carriers which have superior properties.
    Type: Grant
    Filed: June 17, 1986
    Date of Patent: September 6, 1988
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yasuhiro Takeuchi, Atsushi Nishino, Yukiyoshi Ono, Hironao Numoto
  • Patent number: 4767878
    Abstract: High yields of unsaturated nitriles are obtained by the oxidation of olefin-ammonia mixtures in the presence of a catalyst comprising the oxides of bismuth, molybdenum, iron and at least one element of the Group II metals as essential components, and optionally the oxides of cobalt, nickel, phosphorus, arsenic and an alkali metal.
    Type: Grant
    Filed: July 7, 1986
    Date of Patent: August 30, 1988
    Assignee: The Standard Oil Company
    Inventors: Robert K. Grasselli, Harley F. Hardman
  • Patent number: 4764499
    Abstract: 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 polyvalent metal cations. The resulting gel, or suspension is heated to 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 filtered and ion exchanged with ions of one or more metals selected from those exchangeable metals from groups IA, IIA, IIIB, IVB, VIB, VIIB, and VIII of the Periodic Table of the Elements. The resulting ion-exchanged material is then dried.
    Type: Grant
    Filed: August 10, 1984
    Date of Patent: August 16, 1988
    Assignee: Exxon Research and Engineering Company
    Inventors: Thomas H. Vanderspurt, Michael A. Richard, Tessie M. Che
  • Patent number: 4761393
    Abstract: 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: Grant
    Filed: July 27, 1987
    Date of Patent: August 2, 1988
    Assignee: Amoco Corporation
    Inventors: Marc O. Baleiko, Edward F. Rader
  • Patent number: 4760042
    Abstract: A supported silver catalyst for the oxidation of ethylene with molecular oxygen to ethylene oxide is made by depositing silver on a support capable of selectively adsorbing alkali metals, activating the silver under conditions chosen to provide the optimum selectivity to ethylene oxide and thereafter depositing an amount of an alkali metal sufficient to increase selectivity of the silver catalyst above its alkali-free state. The catalyst most preferably employs a ceramic support having a surface area of 0.3-0.8 m.sup.2 /gm. The amount of alkali metal on the finished catalyst is most preferably 50-300 ppm by weight. The catalyst may also include additional promoters, such as the alkaline earth metals, preferably barium.
    Type: Grant
    Filed: March 24, 1982
    Date of Patent: July 26, 1988
    Assignee: Scientific Design Company, Inc.
    Inventor: William D. Armstrong
  • Patent number: 4749671
    Abstract: An exhaust gas cleaning catalyst composed of a refractory three-dimensional structure and a catalytically active substance supported thereon. That surface or part of the catalyst which makes contact with an exhaust gas is formed of numerous irregularly arranged protrusions composed of a refractory inorganic powder having a particle diameter of 5 to 300 micrometers or a mixture of it with refractory inorganic fibers and the catalytically active substance supported on the protrusions.
    Type: Grant
    Filed: July 1, 1986
    Date of Patent: June 7, 1988
    Assignee: Nippon Shokubai Kagaku Kogyo Co., Ltd.
    Inventors: Koichi Saito, Kenji Ueda, Yasuo Ikeda
  • Patent number: 4746643
    Abstract: The invention relates to a method for the preparation of a catalyst for the dehydrogenation of C.sub.3 -C.sub.5 paraffins consisting in impregnating calcined aluminum oxide with a solution of chromium and potassium compounds, in drying and then impregnating the product obtained with a solution of a compound of silicon, the catalyst obtained being finally dried and calcined.
    Type: Grant
    Filed: June 16, 1986
    Date of Patent: May 24, 1988
    Assignees: Snamprogetti S.p.A., Niimsk
    Inventors: Franco Buonomo, Rodolfo Jezzi, Bruno Notari, Gheorghiy R. Kotelnikov, Konstantinovic R. Michailov, Victor A. Patanov
  • Patent number: 4743575
    Abstract: An improved support for a contact agent, useful for converting methane to higher hydrocarbon products by contacting a gas comprising methane with a contact agent at a selected temperature, is formed by sintering the surface of the support.
    Type: Grant
    Filed: January 2, 1986
    Date of Patent: May 10, 1988
    Assignee: Atlantic Richfield Company
    Inventor: John A. Jaecker
  • Patent number: 4740490
    Abstract: Disclosed herein are catalyst compositions comprised of:(a) from about 15 to about 85 wt. % of crystallites selected from the group consisting of (i) crystallites of one or more transition metals and (ii) crystallites of reducible transition metal carbides and nitrides, and mixtures thereof, said transition metal being selected from those reducible metals from Groups IB, IIB, VIB, VIIB, and VIII of the Periodic Table of the Elements, wherein at least 80% of the crystallities have a diameter, d, between about 25 .ANG. and 500 .ANG. with the proviso that the crystallite size distribution of at least about 80% of these be expressed by the relationship 0.5D<d<2D where D is the median of the diameters of this 80%.(b) from about 15 to about 85 wt.
    Type: Grant
    Filed: August 10, 1984
    Date of Patent: April 26, 1988
    Assignee: Exxon Research and Engineering Company
    Inventors: Thomas H. Vanderspurt, Michael A. Richard, Angelo A. Montagna
  • Patent number: 4732884
    Abstract: In the production of a Mo-Bi-Na composite oxide catalyst by the process comprising incorporating compounds as respective element sources into a composite and subjecting the composite to heat treatment, a bismuth subcarbonate in which at least a part of required Na has been solid-dissolved is used as a Bi source compound. The activity of the catalyst is significantly improved by introducing Bi and Na in the form of the specified water insoluble compound into the catalyst.
    Type: Grant
    Filed: March 24, 1987
    Date of Patent: March 22, 1988
    Assignee: Mitsubishi Petrochemical Company Limited
    Inventors: Kohei Sarumaru, Etsuji Yamamoto, Teruo Saito
  • Patent number: 4728634
    Abstract: This invention relates to ethylene oxide catalysts comprising silver, alkali metal promoters supported on a carrier, which carrier is prepared by a process which comprises mixing an aluminum compound with an alkali metal salt and with a silicon compound and calcining resultant mixture at a temperature greater than about 1100.degree. C.
    Type: Grant
    Filed: June 16, 1986
    Date of Patent: March 1, 1988
    Assignee: Shell Oil Company
    Inventors: Gosse Boxhoorn, Aan H. Klazinga, Otto M. Velthuis
  • Patent number: 4721696
    Abstract: A composition of matter comprising alumina as the major component and silica as a minor component is prepared by a process comprising sequential addition of solutions of aluminum salt and alkali metal aluminate, addition of a solution of alkali metal silicate to dispersed alumina hydrogen and heating formed alumina-silica hydrogel under dehydrating conditions. The thus prepared composition of matter, optionally promoted with at least one transition metal compound, can be used as a catalyst for hydrotreating substantially liquid hydrocarbon-containing feed streams which also contain sulfur and metal compounds as impurities.
    Type: Grant
    Filed: March 11, 1987
    Date of Patent: January 26, 1988
    Assignee: Phillips Petroleum Company
    Inventor: Dennis R. Kidd
  • Patent number: 4714695
    Abstract: 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: Grant
    Filed: April 16, 1986
    Date of Patent: December 22, 1987
    Assignee: The Standard Oil Company
    Inventors: Christos Paparizos, Wilfrid G. Shaw, James L. Callahan
  • Patent number: 4703029
    Abstract: Moldings are described which are composed of a silicic acid with a layer structure, or salts thereof with the general formula (H,M).sub.2 Si.sub.y O.sub.2y+1, or the corresponding hydrates, M representing lithium, sodium, potassium or ammonium and y being 1.7 to 24. They can be prepared for example by extruding pulverulent layer silicic acids, or salts thereof with the general formula (H,M).sub.2 Si.sub.y O.sub.2y+1, or the corresponding hydrates, M representing lithium, sodium, potassium or ammonium and y being 1.7 to 24, to produce cylindrical blanks, if appropriate after moistening with water or an organic solvent, and then drying the blanks, or by introducing the same starting materials into a mold, as dry or moist powders, converting them to moldings with the application of pressure and, if appropriate, drying the moldings.
    Type: Grant
    Filed: July 16, 1985
    Date of Patent: October 27, 1987
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Hans-Peter Rieck, Martin Schott, Jurgen Russow
  • Patent number: 4698324
    Abstract: A catalyst composite having gold or a mixture of gold with a catalytic metal oxide deposited on a carrier is produced by immersing a carrier in an aqueous solution containing a water-soluble salt of gold or water-soluble salts respectively of gold and other catalytic metal and urea and/or acetamide thereby allowing a precipitate to be deposited on the carrier and then firing the carrier holding the deposited precipitate thereon.
    Type: Grant
    Filed: August 21, 1986
    Date of Patent: October 6, 1987
    Assignees: Agency of Industrial Science & Technology, Ministry of International Trade & Industry
    Inventors: Masatake Haruta, Hiroshi Sano, Tetsuhiko Kobayashi
  • Patent number: 4689316
    Abstract: Metal vapor may be deposited on catalyst supports to produce supported catalysts. This process allows deposition deep in the pores of the catalyst support without the impregnation problems of liquid phase deposition of catalytic material on porous catalyst supports.
    Type: Grant
    Filed: February 4, 1986
    Date of Patent: August 25, 1987
    Assignee: The Dow Chemical Company
    Inventor: Robert G. Bowman
  • Patent number: 4689315
    Abstract: Amorphous, approximately spherical silica particles prepared by the acidic hydrolysis of an approximately spherical synthetic calcium silicate having a uniform microgranular structure on their external surfaces and a structure in the interior thereof which structure only weakly recall the original crystal needle structure of the starting material. The average external particle size is from 15 to 80 .mu.m, the apparent particle volume is from 1.3 to 3 cm.sup.3 /g, and the specific surface area is from 250 to 800 m.sup.2 /g. The silica particles are particularly suitable for use as catalyst supports.
    Type: Grant
    Filed: March 27, 1985
    Date of Patent: August 25, 1987
    Assignee: Redco N.V.
    Inventors: Octavian Anton, Pierre Jacobs, Georges Poncelet, Phillippe Jacques
  • Patent number: 4663303
    Abstract: A silver salt solution suitable for depositing silver on a support in the preparation of silver catalysts is made by reacting a silver compound with a neo-acid, in a hydrocarbon solvent. The reaction is completed under reflux conditions, thereby removing water formed by the reaction and reacting at least 90% of the unreacted acid. Therefore, the solution may be used without further processing to impregnate a porous support, thereby providing a catalyst useful for oxidation of ethylene oxide.
    Type: Grant
    Filed: February 24, 1986
    Date of Patent: May 5, 1987
    Assignee: The Halcon SD Group, Inc.
    Inventors: Mitchell Becker, Kindtoken H. Liu
  • Patent number: 4645754
    Abstract: A silver catalyst for the production of ethylene oxide by catalytic vapor phase oxidation of ethylene with molecular oxygen in the presence of a halogenated inhibitor, having silver and at least one accelerator selected from the group consisting of alkali metals and alkali metal compounds deposited on a porous inorganic refractory carrier in the shape of Intalox saddles or Berl saddles, and the method for manufacture thereof.
    Type: Grant
    Filed: October 10, 1985
    Date of Patent: February 24, 1987
    Assignee: Nippon Shokubai Kagaku Kogyo Co., Ltd.
    Inventors: Fumihide Tamura, Minoru Saotome
  • Patent number: 4640908
    Abstract: An improved oxidation catalyst, well adopted for the conversion of H.sub.2 S-containing acid gases at least in part to elemental sulfur, is facilely prepared by (i) hydrothermally treating at least a portion of an active alumina support, and (ii) then impregnating said at least partially hydrothermally treated support with a catalytically effective amount of a catalytically active oxide phase which comprises the oxides of at least one of the metals, Fe, Cu, Ag, W, Co, Ni, Bi, Cr and Cd, with the proviso (iii) that at least one rare earth oxide, alkaline earth metal oxide, zirconium oxide or silica compound, or any precursor compound thereof, is incorporated into the catalyst during either of the steps (i) or (ii).
    Type: Grant
    Filed: September 23, 1985
    Date of Patent: February 3, 1987
    Assignee: Rhone-Poulenc Specialites Chimiques
    Inventor: Thierry Dupin
  • Patent number: 4636485
    Abstract: 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: Grant
    Filed: February 13, 1985
    Date of Patent: January 13, 1987
    Assignee: Dragerwerk AG
    Inventor: Carl-Ernst van der Smissen
  • Patent number: 4631264
    Abstract: Catalyst and process are disclosed for preparation of alpha, beta-unsaturated acids. Catalyst comprises a silica component and a Group IA alkali metal component which is present in an amount of from 200 to 15,000 parts per million, said silica component containing less than about 500 parts per million individually of aluminum, zirconium, titanium, iron and mixtures thereof. Process comprises reacting formaldehyde and a carboxylic acid of the formula RCH.sub.2 COOH wherein R is a member of the class consisting of -H, -alkyl, -aryl, -aralkyl, -cycloalkyl, and -alkylaryl radicals in the presence of said catalyst. Catalyst activity is maintained during process by addition of source of alkali metal component.
    Type: Grant
    Filed: October 7, 1985
    Date of Patent: December 23, 1986
    Assignee: Standard Oil Company (Indiana)
    Inventor: Gary P. Hagen
  • Patent number: 4628128
    Abstract: A process for the preparation of ethylene glycol by the vapor phase catalytic hydrogenation of at least one of di(lower alkyl) oxalate and lower alkyl glycolate in the presence of a hydrogenation catalyst comprising a carrier, which catalyst is suitable for the hydrogenation of alkyl oxalate and alkyl glycolate to ethylene glycol, the improvement lies within the preparation of the catalyst by employment of catalysts comprising carriers having specific ranges of physical parameters, including average pore diameter and pore volume, which parameters are interrelated by a relative activity index.
    Type: Grant
    Filed: February 4, 1985
    Date of Patent: December 9, 1986
    Assignee: Union Carbide Corporation
    Inventor: William J. Bartley
  • Patent number: 4628129
    Abstract: A process for the preparation of ethylene glycol by the catalytic hydrogenation of at least one of di(lower alkyl) oxalate and lower alkyl glycolate in the presence of a hydrogenation catalyst comprising a carrier, which catalyst is suitable for the hydrogenation of alkyl oxalate and alkyl glycolate to ethylene glycol, wherein the carrier has a leachable iron content not greater than about 0.03%, by weight of the carrier.
    Type: Grant
    Filed: February 4, 1985
    Date of Patent: December 9, 1986
    Assignee: Union Carbide Corporation
    Inventor: William J. Bartley
  • Patent number: 4623635
    Abstract: 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: Grant
    Filed: April 18, 1985
    Date of Patent: November 18, 1986
    Assignee: The Standard Oil Company
    Inventors: Christos Paparizos, Wilfrid G. Shaw, James L. Callahan
  • Patent number: 4621071
    Abstract: A composite active phase/support catalyst adapted for the treatment of internal combustion engine exhaust gases, the active phase of which comprising at least one metal from a first group comprising platinum, palladium, iridium, rhodium, ruthenium, rhenium, silver, gold or plurality thereof and at least one additional metal and the support therefor comprising binder/filler admixture, is facilely prepared by (i) intimately admixing the binder and filler support material with at least 50% by weight but less than all of said at least one first group metal, or precursor thereof, and/or of said at least one additional metal, (ii) forming the resulting admixture into catalyst shaped article, (iii) drying and optionally calcining said catalyst shaped article, (iv) incorporating the remainder of said at least one first group metal, or precursor thereof, and/or said at least one additional metal into said catalyst shaped article, and then (v) drying and activating the composite catalyst.
    Type: Grant
    Filed: December 7, 1984
    Date of Patent: November 4, 1986
    Assignee: Pro-Catalyse
    Inventors: Gilbert Blanchard, Michel Prigent
  • Patent number: 4608362
    Abstract: A process and catalyst for the acetoxylation of propylene, said catalyst consisting essentially of palladium, bismuth, potassium, and rubidium.
    Type: Grant
    Filed: August 2, 1985
    Date of Patent: August 26, 1986
    Assignee: Phillips Petroleum Company
    Inventor: Charles A. Drake
  • Patent number: 4607055
    Abstract: 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: Grant
    Filed: July 3, 1985
    Date of Patent: August 19, 1986
    Assignee: Texaco Inc.
    Inventors: Michael V. Grazioso, David A. Storm
  • Patent number: 4604375
    Abstract: 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: Grant
    Filed: December 20, 1983
    Date of Patent: August 5, 1986
    Assignee: Exxon Research and Engineering Co.
    Inventors: Stuart L. Soled, Rocco A. Fiato
  • Patent number: 4600541
    Abstract: In the preparation of acrylonitrile or methacrylonitrile by ammoxidation of propylene or isobutylene with ammonia and molecular oxygen in the vapor phase in the presence of a catalyst comprising silica and supported thereon oxides of molybdenum, bismuth and iron, the yield of acrylonitrile or methacrylonitrile based on ammonia is improved without sacrificing the yield based on propylene or isobutylene by the use of a novel catalyst having, incorporated therein, 0.002 to 0.2 atom, based on 12 atoms of molybdenum, of an oxide of at least one element selected from the group consisting of palladium, platinum, osmium and iridium.
    Type: Grant
    Filed: November 1, 1985
    Date of Patent: July 15, 1986
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Kunitoshi Aoki, Shigeo Nakamura
  • Patent number: 4598058
    Abstract: Molded catalyst materials contain metallic cobalt and/or nickel particles and a lubricant, the said particles being obtained by reduction of cobalt oxide and/or nickel oxide particles containing less than 0.1% by weight of alkali metal oxides and/or alkaline earth metal oxides at .ltoreq.500.degree. C., and the molded catalyst material having an indentation hardness greater than 300 kp/cm.sup.2.
    Type: Grant
    Filed: January 31, 1985
    Date of Patent: July 1, 1986
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerhard Frank, Gerald Neubauer, Paul Duffner, Hans J. Wilfinger
  • Patent number: 4590177
    Abstract: 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: Grant
    Filed: August 10, 1984
    Date of Patent: May 20, 1986
    Assignee: Exxon Research and Engineering Co.
    Inventors: Michael A. Richard, Thomas H. Vanderspurt, Angelo A. Montagna
  • Patent number: 4588705
    Abstract: 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: Grant
    Filed: August 10, 1984
    Date of Patent: May 13, 1986
    Assignee: Exxon Research and Engineering Co.
    Inventors: Thomas H. Vanderspurt, Michael A. Richard
  • Patent number: 4587229
    Abstract: A process and catalyst for the acetoxylation of propylene, said catalyst consisting essentially of palladium, bismuth, and rubidium on a support.
    Type: Grant
    Filed: October 22, 1984
    Date of Patent: May 6, 1986
    Assignee: Phillips Petroleum Company
    Inventors: Charles A. Drake, Stephen E. Reiter
  • Patent number: 4582815
    Abstract: The present invention is directed to a method for extruding silica-rich solids. The method comprises mixing silica-rich solids with water in an alkali metal base or basic salt followed by mulling and extruding and subsequently drying the extrudate whereby the dried extrudate has a crush strength superior to that of the prior art. The silica-rich solids can be silica alone, zeolite alone or a mixture thereof. The alkali metal can be sodium hydroxide. The invention is also directed to a product which has a special attribute in that they have sufficient integrity to withstand treatments with acids so that it is now possible to steam, acid extract, or calcine such extrudates. The catalyst can be used in hydrocarbon conversions such as hydrocracking, isomerization, hydrogenation, dehydrogenation, polymerization, reforming, catalytic cracking, or catalytic hydrocracking.
    Type: Grant
    Filed: July 6, 1984
    Date of Patent: April 15, 1986
    Assignee: Mobil Oil Corporation
    Inventor: Emmerson Bowes
  • Patent number: 4575494
    Abstract: An alumina support which contains cesium is prepared by adding a fusible compound of cesium to alumina along with known binders and porosity control agents. The cesium compound should be fusible below the temperature at which the alumina fuses. Such a support is especially useful as a support for a silver catalyst employed in the oxidation of ethylene to ethylene oxide.
    Type: Grant
    Filed: February 8, 1984
    Date of Patent: March 11, 1986
    Assignee: The Dow Chemical Company
    Inventors: Harold W. Young, Jr., Oliver C. Ainsworth, Jr., William E. Fry, Lawrence E. Neil
  • Patent number: 4556731
    Abstract: 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: Grant
    Filed: April 19, 1982
    Date of Patent: December 3, 1985
    Assignee: The Standard Oil Company
    Inventors: Andrew T. Guttmann, Robert K. Grasselli
  • Patent number: 4555501
    Abstract: A supported silver catalyst for the oxidation of ethylene to ethylene oxide with molecular oxygen is made by impregnating a support with a hydrocarbon solution of a silver salt of a neo-acid having 7 or more carbon atoms, substantially free of water and said neo-acid. Preferably, the hydrocarbon solvent is toluene, xylene, ethyl benzene, cyclohexane, or cumene. The impregnated support is dried and the silver is activated under conditions chosen to provide the optimum selectivity to ethylene oxide. Thereafter, the activated silver catalyst may be impregnated with an alkali metal solution sufficient to increase selectivity of the silver catalyst above its alkali-free state. The amount of alkali metal on the finished catalyst is the optimum for the particular support selected and preferably will be about 1-6.times.10.sup.-3 gew/kg of catalyst. The catalyst may also include additional promoters, such as the alkaline earth metals, preferably barium.
    Type: Grant
    Filed: May 14, 1984
    Date of Patent: November 26, 1985
    Assignee: The Halcon SD Group, Inc.
    Inventor: William D. Armstrong
  • Patent number: 4551442
    Abstract: Catalysts comprising the mixed oxides of ruthenium, palladium or platinum and alkali metals are provided which are useful in the subject process for the upgrading of synthesis gas, particularly for obtaining alkanes and alcohols having at least two carbon atoms, in addition to methane and methanol. Also provided is a temperature gradient reactor useful in synthesis gas upgrading reactions for increasing selectivity to higher carbon number products.
    Type: Grant
    Filed: September 24, 1984
    Date of Patent: November 5, 1985
    Assignee: The Standard Oil Company (Ohio)
    Inventors: Frederick A. Pesa, Anne M. Graham
  • Patent number: 4550097
    Abstract: A process for providing high space time yields in the acetoxylation of propylene involving the use of a catalyst consisting essentially of palladium, potassium, bismuth, and a promoting amount of magnesium or a combination of magnesium and barium.
    Type: Grant
    Filed: August 20, 1984
    Date of Patent: October 29, 1985
    Assignee: Phillips Petroleum Company
    Inventor: Charles A. Drake
  • Patent number: 4542117
    Abstract: A catalyst composition for use in the production of hydrocarbons from synthesis gas comprises the essential metals(a) at least one of iron, cobalt, nickel and ruthenium, and(b) at least one of lithium, sodium, potassium, calcium and magnesiumsupported on silicate, as described and claimed in U.S. Pat. No. 4,061,724, the metals [(a)+(b)] being present on the silicalite support in an amount in the range from 0.5 to 15% by weight. The catalyst composition may be modified by addition of the hydrogen form of a crystalline zeolite having the composition expressed as mole ratios of oxides:0.9.+-.0.2 M.sub.2 /.sub.n O:W.sub.2 O.sub.3 :20 to 50 YO.sub.2 :zH.sub.2 Owherein M is at least one cation, n is the valence thereof, W is aluminum and/or gallium, Y is silicon and/or germanium and z has a value of 0 to 40, said zeolite being characterized by an XRD pattern which is substantially that of an MFI-type zeolite.
    Type: Grant
    Filed: July 11, 1983
    Date of Patent: September 17, 1985
    Assignee: The British Petroleum Company p.l.c.
    Inventors: George E. Morris, Barry Nay, David G. Stewart
  • Patent number: 4541964
    Abstract: In the preparation of methacrylonitrile by gas-phase ammoxidation of isobutylene or tertiary butanol, the reaction is carried out (A) (i) using a catalyst system consisting essentially of (1) 30-70% by weight of a silica catalyst carrier and (2) a catalyst material having a composition represented by the formula:A.sub.0.05-1.0 Mo.sub.12 Bi.sub.1-18 Fe.sub.2-10 Na.sub.0-3.6 P.sub.0-3 O.sub.xwherein A is at least one element selected from the group consisting of potassium, rubidium and cesium, and x is the number of oxygen atoms needed to satisfy the valence requirements of the other elements present, said catalyst system having a specific surface area of 2-10 m.sup.2 /g; (ii) at a temperature of 380.degree.-480.degree. C.; (iii) at a contact time of 1-10 seconds; and (B) while maintaining the oxygen concentration in the gaseous reaction mixture below about 1 percent by volume.
    Type: Grant
    Filed: August 27, 1984
    Date of Patent: September 17, 1985
    Assignee: Asahi Kasei Kasyo Kabushiki Kaisha
    Inventors: Tsutomu Katsumata, Tetsuro Dozono
  • Patent number: 4539309
    Abstract: Catalysts for the oxidation of sulfur dioxide to sulfur trioxide, consisting of a silica-based carrier and, applied on this, an active substance containing vanadium and alkali metal compounds, are prepared by dissolving vanadium pentoxide in an alkali solution, acidifying the solution with sulfuric acid, mixing the acidified solution with the carrier, molding the mixture and drying and calcining the molding. To obtain mechanically stable catalysts, a dissolved alkali metal silicate and/or silica sol are added to the alkaline solution before acidification, the latter process is carried out at below 35.degree. C. and the solution is then immediately incorporated into the carrier. The resulting moist crumbly material contains from 2 to 6% by weight of V.sub.2 O.sub.5, from 35 to 45% by weight of H.sub.2 O and from 15 to 50% by weight of SiO.sub.2. From 5 to 25% by weight of the total silica content originates from the dissolved alkali metal silicate and/or silica sol.
    Type: Grant
    Filed: June 25, 1984
    Date of Patent: September 3, 1985
    Assignee: BASF Aktiengesellschaft
    Inventors: Ruprecht Meissner, Norbert Neth
  • Patent number: 4539308
    Abstract: Olefins are converted into other olefins having different numbers of carbon atoms by contact with a catalyst comprising silica containing tungsten oxide and a promoting amount of silver under conditions suitable for silver to promote the activity of tungsten oxide for the disproportionation reaction.
    Type: Grant
    Filed: September 19, 1984
    Date of Patent: September 3, 1985
    Assignee: Phillips Petroleum Company
    Inventors: Simon G. Kukes, Robert L. Banks
  • Patent number: 4537867
    Abstract: Iron-cobalt spinels which contain low levels of cobalt, in an iron/cobalt atomic ratio of 7:1 to 35:1, are converted to Fischer-Tropsch catalysts upon reduction and carbiding that exhibit high activity and selectivity to C.sub.2 --C.sub.6 olefins and low CH.sub.4 production.
    Type: Grant
    Filed: December 14, 1983
    Date of Patent: August 27, 1985
    Assignee: Exxon Research and Engineering Co.
    Inventors: Rocco A. Fiato, Stuart L. Soled, Angelo A. Montagna
  • Patent number: RE32484
    Abstract: A vapor phase catalytic oxydehydrogenation process for the conversion of a steam of mixed isomeric isoamylenes, methyl butanols or mixtures thereof to isoprene with relatively short contact times at a reactor temperature in the range of 500.degree. F. to 1100.degree. F. at from 0.5 to about 10 atmospheres pressure. The catalysts comprise an alkali metal as an essential catalytic ingredient.
    Type: Grant
    Filed: September 2, 1983
    Date of Patent: August 25, 1987
    Assignee: The Standard Oil Company
    Inventors: Robert K. Grasselli, Harley F. Hardman