Of Group Iii Metal (i.e., Sc, Y, Al, Ga, In Or Tl) Patents (Class 502/238)
  • Patent number: 10752508
    Abstract: It is provided a process of producing amorphous silica from a raw material, such as serpentine, containing silica comprising the steps of mixing the raw material with a hydrochloric acid solution; leaching the raw material obtaining a slurry comprising a liquid fraction and a solid fraction containing silica and minerals; separating the liquid fraction and the solid fraction; removing the minerals from the solid fraction by magnetic separation producing a purified solid silica; drying the purified solid silica; and heating the purified solid silica to remove hydroxyl groups from the silica surface and reducing specific surface area of the resulting amorphous silica.
    Type: Grant
    Filed: May 5, 2016
    Date of Patent: August 25, 2020
    Assignee: ALLIANCE MAGNÉSIUM INC.
    Inventors: Joël Fournier, Laury Gauthier
  • Patent number: 10744487
    Abstract: The invention relates to a copper manganese-based catalyst on the basis of a tablet-form shaped catalyst body, comprising calcium aluminate as a binder, for hydrating carbonyl groups in organic compounds, characterised in that said shaped catalyst body comprises calcium aluminate in an amount of 0.5 to 20 wt. %. The invention also relates to the production of the catalyst and to the use of same in the hydration of carbonyl groups in organic compound.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: August 18, 2020
    Assignee: CLARIANT INTERNATIONAL LTD
    Inventors: Manuel Pfanzelt, Martin Paulus, Frank Grossmann
  • Patent number: 8664146
    Abstract: A bulk metal oxide catalyst composition of the general formula (X)b(M)c(Z)d(O)e??(I) wherein X represents at least one non-noble Group VIII metal; M represents at least one non-noble Group VIb metal; Z represents one or more elements selected from aluminum, silicon, magnesium, titanium, zirconium, boron, and zinc; one of b and c is the integer 1; and d and e and the other of b and c each are a number greater than 0 such that the molar ratio of b:c is in the range of from 0.5:1 to 5:1, the molar ratio of d:c is in the range of from 0.2:1 to 50:1, and the molar ratio of e:c is in the range of from 3.7:1 to 108:1; is prepared by controlled (co)precipitation of component metal compounds, refractory oxide material, and alkali compound in protic liquid. Resulting compositions find use in hydrotreatment processes involving particularly hydrodesulphurization and hydrodenitrification.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: March 4, 2014
    Assignee: Shell Oil Company
    Inventors: Laszlo Domokos, Hermanus Jongkind, Johannes Anthonius Robert Van Veen
  • Patent number: 8642499
    Abstract: A particulate catalytic cracking catalyst which comprises a zeolite having catalytic cracking ability under catalytic cracking conditions, added silica, precipitated alumina and, optionally clay. The catalytic cracking catalyst has a high matrix surface area and is useful in a catalytic cracking process, in particularly, a fluid catalytic cracking process, to improve bottoms conversion at a constant coke formation.
    Type: Grant
    Filed: November 21, 2007
    Date of Patent: February 4, 2014
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Wu-Cheng Cheng, Kevin John Sutovich, Ruizhong Hu, Ranjit Kumar, Xinjin Zhao
  • Patent number: 8581014
    Abstract: Provided is a process for producing, in a single step, hydrocarbon fractions useful as diesel fuel or as a component of diesel fuel, from a mixture of a biological origin containing esters of fatty acids and, optionally, aliquots of free fatty acids. The process comprises the contemporaneous hydrodeoxygenation and hydroisomerization of the mixture of a biological origin, with the formation of linear and branched paraffins. The process is carried out in the presence of a catalytic composition comprising an amorphous carrier of an acidic nature and a metallic component containing one or more metals of group VIII.
    Type: Grant
    Filed: December 14, 2009
    Date of Patent: November 12, 2013
    Assignees: ENI S.p.A., UOP LLC
    Inventors: Carlo Perego, Franco Baldiraghi, Suheil Fares Abdo, Terry Louise Marker, Luigina Maria Flora Sabatino
  • Patent number: 8461373
    Abstract: Disclosed is a catalyst for use in production of carboxylic acid ester by reacting (a) aldehyde and alcohol, or (b) one or more types of alcohols, in the presence of oxygen; wherein oxidized nickel and X (wherein X represents at least one element selected from the group consisting of nickel, palladium, platinum, ruthenium, gold, silver and copper) are loaded onto a support within the range of the atomic ratio of Ni/(Ni+X) of from 0.20 to 0.99.
    Type: Grant
    Filed: July 31, 2008
    Date of Patent: June 11, 2013
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Ken Suzuki, Tatsuo Yamaguchi
  • Patent number: 8398894
    Abstract: The present invention relates to a catalyst for preparing a carbon nanotube having desired apparent density by controlling the adding amount of co-precipitating agent in the process of preparing a catalyst in order to obtain a catalyst having a minimized particle size. More specifically, this invention relates to a catalyst for preparing carbon nanotube having desired apparent density based upon the reverse-correlation between the amount of co-precipitating agent added in the process of preparing catalyst and the apparent density of catalyst. The carbon nanotube prepared by the catalyst having low apparent density shows excellent electrical conductivity and highly uniformed dispersion in the polymer/carbon nanotube composite.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: March 19, 2013
    Assignee: Korea Kumho Petrochemical Co., Ltd.
    Inventors: Namsun Choi, Hyun-Kyung Sung, Dong Hwan Kim, Sang-Hyo Ryu, Wan Sung Lee, Youngchan Jang
  • Patent number: 8088706
    Abstract: A bulk metal oxide catalyst composition of the general formula (X)b(M)c(Z)d(O)e??(I) wherein X represents at least one non-noble Group VIII metal; M represents at least one non-noble Group VIb metal; Z represents one or more elements selected from aluminum, silicon, magnesium, titanium, zirconium, boron, and zinc; one of b and c is the integer 1; and d and e and the other of b and c each are a number greater than 0 such that the molar ratio of b:c is in the range of from 0.5:1 to 5:1, the molar ratio of d:c is in the range of from 0.2:1 to 50:1, and the molar ratio of e:c is in the range of from 3.7:1 to 108:1; is prepared by controlled (co)precipitation of component metal compounds, refractory oxide material, and alkali compound in protic liquid. Resulting compositions find use in hydrotreatment processes involving particularly hydrodesulphurization and hydrodenitrification.
    Type: Grant
    Filed: April 29, 2009
    Date of Patent: January 3, 2012
    Assignee: Shell Oil Company
    Inventors: Laszlo Domokos, Hermanus Jongkind, Johannes Anthonius Robert Van Veen
  • Patent number: 7973208
    Abstract: A catalyst for converting methanol to light olefins and the process for making and using the catalyst are disclosed and claimed. SAPO-34 is a specific catalyst that benefits from its preparation in accordance with this invention. A seed material is used in making the catalyst that has a higher content of the EL metal than is found in the principal part of the catalyst. The molecular sieve has predominantly a roughly rectangular parallelepiped morphology crystal structure with a lower fault density and a better selectivity for light olefins.
    Type: Grant
    Filed: April 28, 2009
    Date of Patent: July 5, 2011
    Assignee: UOP LLC
    Inventors: Wharton Sinkler, Robert W. Broach, Natasha Erdman, Thomas M. Reynolds, John Q. Chen, Stephen T. Wilson, Paul T. Barger
  • Patent number: 7918992
    Abstract: Methods and systems for contacting of a crude feed with one or more catalysts to produce a total product that includes a crude product are described. The crude product is a liquid mixture at 25° C. and 0.101 MPa. The crude product has an MCR content of at most 90% of the MCR content of the crude feed. One or more other properties of the crude product may be changed by at least 10% relative to the respective properties of the crude feed.
    Type: Grant
    Filed: April 7, 2006
    Date of Patent: April 5, 2011
    Assignee: Shell Oil Company
    Inventor: Opinder Kishan Bhan
  • Patent number: 7914760
    Abstract: A silicoaluminophosphate molecular sieve is disclosed that comprises first and second intergrown phases of a CHA framework type and an AEI framework type, wherein said first intergrown phase has an AEI/CHA ratio of from about 5/95 to about 40/60 as determined by DIFFaX analysis, the second intergrown phase has an AEI/CHA ratio of about 30/70 to about as determined by DIFFaX analysis and said molecular sieve has a silica to alumina molar ratio (Si/Al2) from about 0.13 to about 0.24.
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: March 29, 2011
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Machteld M. Mertens, An Verberckmoes, Marcel J. Janssen, Yun Feng Chang, Luc R. M. Martens, Stephen Neil Vaughn, Kenneth Ray Clem, Wilfried J. Mortier
  • Patent number: 7799729
    Abstract: In one embodiment, a reforming catalyst can include indium, tin, and a catalytically effective amount of a group VIII element for one or more reforming reactions. Typically, at least about 25%, by mole, of the indium is an In(3+) species based on the total moles of indium after exposure for about 30 minutes in an atmosphere including about 100% hydrogen, by mole, at a temperature of about 565° C. Usually, no more than about 25%, by mole, of the tin is a Sn(4+) species based on the total moles of tin after exposure for about 30 minutes in an atmosphere including about 100% hydrogen, by mole, at a temperature of about 565° C.
    Type: Grant
    Filed: February 23, 2009
    Date of Patent: September 21, 2010
    Assignee: UOP LLC
    Inventors: Gregory J. Gajda, Mark Paul Lapinski, Jeffry Thurston Donner, Simon Russell Bare
  • Patent number: 7560408
    Abstract: Amorphous porous solid of an acidic nature, with a controlled pore size, essentially consisting of a mixed oxide of silicon, aluminum and phosphorous, having a surface area of at least 200 m2/g, which can be used as a catalyst or active carrier of a catalyst for various industrial processes, such as, for example, alkylation, isomerization, hydro-dehydrogenation processes, with an improved activity and selectivity with respect to the traditional amorphous silica-alumina gels.
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: July 14, 2009
    Assignees: Eni S.p.A., Enitecnologie S.p.A.
    Inventors: Vincenzo Calemma, Cristina Flego, Luciano Cosimo Carluccio, Roberto Millini, Wallace Parker
  • Patent number: 7544285
    Abstract: A bulk metal oxide catalyst composition of the general formula (X)b(M)c(Z)d(O)e??(I) wherein X represents at least one non-noble Group VIII metal; M represents at least one non-noble Group VIb metal; Z represents one or more elements selected from aluminium, silicon, magnesium, titanium, zirconium, boron, and zinc; one of b and c is the integer 1; and d and e and the other of b and c each are a number greater than 0 such that the molar ratio of b:c is in the range of from 0.5:1 to 5:1, the molar ratio of d:c is in the range of from 0.2:1 to 50:1, and the molar ratio of e:c is in the range of from 3.7:1 to 108:1; is prepared by controlled (co)precipitation of component metal compounds, refractory oxide material, and alkali compound in protic liquid. Resulting compositions find use in hydrotreatment processes involving particularly hydrodesulphurisation and hydrodenitrification.
    Type: Grant
    Filed: February 20, 2004
    Date of Patent: June 9, 2009
    Assignee: Shell Oil Company
    Inventors: Laszlo Domokos, Hermanus Jongkind, Johannes Anthonius Robert Van Veen
  • Patent number: 7518023
    Abstract: The invention relates to highly active spherical metal support catalysts with a metal content of 10 to 70% by mass, and a process for their production with the use of a mixture of polysaccharides and at least one metal compound which is dropped into a metal salt solution.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: April 14, 2009
    Assignee: Shell Internationale Research Maatschappij, B.V.
    Inventors: Reinhard Geyer, Rainer Schödel, Peter Birke, Jürgen Hunold
  • Patent number: 7271125
    Abstract: A coated metal substrate useful for carrying an exhaust emission treatment catalyst such as a three-way conversion catalyst for use with small engine platforms. The coated metal substrate comprises a metal such as a stainless steel, a carbon steel, a FeCr alloy, HASTELLOY® and the like. The coating on the metal substrate comprises an alumina silicate having alumina particles impregnated therein. The coating is applied using a liquid dispersion containing an aluminum silicate and the alumina particles are dispersed into the aluminum silicate coating while the coating is still wet. The coated metal substrate is then calcined. Thereafter, a washcoat containing an engine exhaust treatment catalyst may be applied to the surface of the coated metal substrate.
    Type: Grant
    Filed: January 14, 2004
    Date of Patent: September 18, 2007
    Assignee: Engelhard Corporation
    Inventors: Michael Patrick Galligan, Young Gin Kim
  • Patent number: 7244689
    Abstract: Alumina-silica catalyst supports having substantially high surfaces areas are formed by extrusion, drying and firing of a plasticized batch including an alumina-silica powder component, acid, organic binder and water. The alumina-silica powder component can be formed either by the mixing of alumina- and silica-source powders or by forming a slurry therefrom which is spray dried to form a particulate material prior to batching.
    Type: Grant
    Filed: November 17, 2003
    Date of Patent: July 17, 2007
    Assignee: Corning Incorporated
    Inventors: William P. Addiego, Kevin R. Brundage, Christopher R. Glose
  • Patent number: 7220699
    Abstract: A method and device for loading a catalyst into a chamber. The catalyst loading is well suited for production of hydrogen producing microreactors. The catalyst is coated onto a strip which is mountable within the chamber.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: May 22, 2007
    Assignee: Intelligent Energy, Inc.
    Inventor: Anand Chellappa
  • Patent number: 7220885
    Abstract: A process for preparing a transalkylation catalyst, the catalyst itself, and a transalkylation process for using the catalyst are herein disclosed. The catalyst comprises rhenium metal on a solid-acid support such as mordenite, which has been treated with a sulfur-based agent. Such treatment reduces the amount of methane produced by metal hydrogenolysis in a transalkylation process wherein heavy aromatics like A9+ are reacted with toluene to produce xylenes. Reduced methane production relative to total light ends gas production results in lower hydrogen consumption and lower reactor exotherms.
    Type: Grant
    Filed: May 27, 2004
    Date of Patent: May 22, 2007
    Assignee: UOP LLC
    Inventors: Edwin P. Boldingh, Antoine Negiz, Gregory F. Maher, Paula L. Bogdan, Dean E. Rende
  • Patent number: 7202189
    Abstract: A catalyst, a process for using the catalyst whereby the catalyst effectively transalkylates C7, C9, and C10 aromatics to C8 aromatics are disclosed. The catalyst comprises a support such as mordenite plus a metal component. The catalyst provides an enhanced life and activity for carrying out the transalkylation reactions at relatively low temperatures. This is achieved by reducing the maximum particle diameter of cylindrical pellets to 1/32 inch (0.08 cm) or a trilobe to 1/16 inch (0.16 cm).
    Type: Grant
    Filed: August 24, 2004
    Date of Patent: April 10, 2007
    Assignee: UOP LLC
    Inventors: Antoine Negiz, Edwin P. Boldingh, Gregory J. Gajda, Sergey V. Gurevich
  • Patent number: 7172990
    Abstract: The invention relates to highly active spherical metal support catalysts with a metal content of 10 to 70% by mass, and a process for their production with the use of a mixture of polysaccharides and at least one metal compound which is dropped into a metal salt solution.
    Type: Grant
    Filed: January 17, 2003
    Date of Patent: February 6, 2007
    Assignee: Shell Internationale Research Maatschappiji, B.V.
    Inventors: Reinhard Geyer, Rainer Schödel, Peter Birke, Jürgen Hunold
  • Patent number: 7151073
    Abstract: This invention relates to a catalyst system comprising a catalyst and a support comprising a non-layered inorganic porous crystalline phase material, wherein the support comprises a hexagonal arrangement of uniformly-sized pores having an average pore diameter greater than or equal to about 13 ?, an X-ray diffraction pattern having a calculated d100 value of greater than or equal to about 18 ?, an adsorption capacity of greater than or equal to about 15 grams benzene per 100 grams support at 50 torr and at 25° C., and a pore wall thickness of less then or equal to about 25 ?.
    Type: Grant
    Filed: January 16, 2004
    Date of Patent: December 19, 2006
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Zerong Lin, David C. Calabro, James C. Vartuli
  • Patent number: 7135429
    Abstract: The present invention is directed to an attrition resistant carrier product such as silica. Further, this invention is directed to the use of a binder to improve the attrition resistance or reduce the friability of a carrier product such as silica. In an embodiment, the median particle size is from 125 to 300 microns. Selection of the binder is such that the presence and/or addition of the binder does not result in substantial modification of the physical properties of the silica. Suitable binders include Group I and Group II silicates, Group I and Group II aluminates, and mixtures thereof, as identified by the Period Table of Elements.
    Type: Grant
    Filed: May 24, 2002
    Date of Patent: November 14, 2006
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Narayan K. Raman, Thomas G. Krivak, Robert C. Dilmore, Paul A. Beauregard
  • Patent number: 7067187
    Abstract: A spherical porous ceramic body and the production method thereof are provided. As to the porous ceramic body, the total volume of the pores having a pore radius of from 1.8 nm to 100 ?m is about 0.25 cm3/g or more, the mode of pore radius of the pores is from about 1 ?m to about 6 ?m and the packing density is from about 0.7 g/cm3 to about 1 g/cm3. The porous ceramic body is suitably used as a carrier for a catalyst and has high mechanical strength.
    Type: Grant
    Filed: March 14, 2002
    Date of Patent: June 27, 2006
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Hidekatsu Kawazu, Osamu Yamanishi
  • Patent number: 6927261
    Abstract: The present invention is directed to a novel one-step method for forming a supported catalyst complex of high activity by substantially simultaneously contacting a bidentate or tridentate ligand forming compound, a transition metal compound and a Lewis acid support-activator agglomerate. The catalyst can be formed prior to polymerization of olefins or within the polymerization reaction zone.
    Type: Grant
    Filed: April 10, 2002
    Date of Patent: August 9, 2005
    Assignee: W. R. Grace & Co.-Conn.
    Inventor: Keng-Yu Shih
  • Patent number: 6887821
    Abstract: A robust, high temperature mixed metal oxide catalyst for propellant composition, including high concentration hydrogen peroxide, and catalytic combustion, including methane air mixtures. The uses include target, space, and on-orbit propulsion systems and low-emission terrestrial power and gas generation. The catalyst system requires no special preheat apparatus or special sequencing to meet start-up requirements, enabling a fast overall response time. Start-up transients of less than 1 second have been demonstrated with catalyst bed and propellant temperatures as low as 50 degrees Fahrenheit. The catalyst system has consistently demonstrated high decomposition effeciency, extremely low decomposition roughness, and long operating life on multiple test particles.
    Type: Grant
    Filed: April 1, 2003
    Date of Patent: May 3, 2005
    Assignee: The Boeing Company
    Inventors: Jeffrey A. Mays, Kevin A. Lohner, Kathleen M. Sevener, Jeff J. Jensen
  • Patent number: 6600011
    Abstract: This invention relates to a method for purifying and drying a polymer hydrogel. This invention is based in part upon the discovery that rapid drying of polymer hydrogels can eliminate the problem of unacceptable levels of soluble oligomers caused by prolonged thermal treatment. Rapid drying techniques allow drying hydrogels containing more water than was previously considered possible without a loss in product quality. Furthermore, it was discovered that slurries comprising polymer hydrogels and large quantities of water can be spray dried and that spray drying can be conducted with only minimal oligomer formation.
    Type: Grant
    Filed: January 31, 2002
    Date of Patent: July 29, 2003
    Assignee: Genzyme Corporation
    Inventors: Peter D. McDonnell, Gary S. Rea, Peter W. Thomas, Mark F. Larrousse, Richard V. Bodmer, Jr.
  • Patent number: 6596665
    Abstract: A mullite composition is comprised substantially of mullite grains that are essentially chemically bound wherein the composition has at least two adjoining regions that have substantially different microstructures. The composition may be produced by forming a mixture of one or more precursor compounds having the elements present in mullite; shaping the mixture into a porous green shape applying a nucleation control agent to a portion of the porous green shape and then heating the porous green shape under an atmosphere and to a temperature sufficient to form the mullite composition.
    Type: Grant
    Filed: August 29, 2001
    Date of Patent: July 22, 2003
    Assignee: Dow Global Technologies Inc.
    Inventors: Sten A. Wallin, John R. Moyer, Arthur R. Prunier, Jr.
  • Publication number: 20030092564
    Abstract: The present invention provides a metallocene catalyst supported on a molecular seive having “tubules-within-a-tubule” morphology. When the metallocene catalyst is used for preparing polyolefin, the MAO amount can be decreased to an amount such that the molar ratio of Al/Zr is below 200. Thus, production costs are greatly reduced.
    Type: Application
    Filed: November 15, 2001
    Publication date: May 15, 2003
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Shu-Hua Chan, Ching Ting, Chung-Yuan Mou, Hong-Ping Lin
  • Patent number: 6495488
    Abstract: The present invention provides a process for producing spherical catalyst carrier of silica, silica-alumina composition, zirconia-alumina composition, titania-alumina composition, boria-alumina composition, or boria-silica-alumina composition which has almost the same pore characteristics as alumina hydrate gel, silica-alumina hydrate gel, zirconia-alumina hydrate gel, or titania-alumina hydrate gel (or alumina hydrate paste, boria-alumina hydrate paste, or boria-silica-alumina hydrate paste) as the major raw material, has uniform sphericity and smooth surface and homogeneity, and has a macropore volume that can be controlled.
    Type: Grant
    Filed: April 10, 2001
    Date of Patent: December 17, 2002
    Assignee: Sumitomo Metal Mining Co., Ltd.
    Inventors: Toshio Yamaguchi, Kikoo Uekusa
  • Publication number: 20020169069
    Abstract: A base catalyst, obtained by formulating at least one alkali metal compound selected from the group consisting of alkoxides, hydroxides and oxides of alkali metals and an alkaline-earth metal oxide in a ratio of “the weight of alkaline metal compound/the weight of alkaline-earth metal oxide”=0.005 to 1, is used in a reaction of an aldehyde to produce a glycol monoester, thereby providing a base catalyst with an improved efficiency which can be applied to aldol reaction or the like and which has high activity to give target product in a high selectivity.
    Type: Application
    Filed: February 7, 2000
    Publication date: November 14, 2002
    Inventors: KAN-ICHIRO INUI, SHUNJI OSHIMA, TORU KURABAYASHI, SAKAE KAWAMURA, MASAHIRO YOKOTA
  • Patent number: 6432869
    Abstract: Moldings are disclosed for use as a catalyst or catalyst support for hydrating olefin, such as ethylene and propylene. The moldings are based on a pyrogenically produced mixed oxide having the following physicochemical parameters: External diameter 0.8-25 mm BET surface area 5-400 m2/g Pore volume 0.2-1.8 ml/g Fracture strength 5 to 350 N Composition At least two materials selected from the group of SiO2, Al2O3, TiO2 and ZrO2 in any desired combination, with the proviso that when the combination is a SiO2/Al2O3 mixed oxide, at least 75 wt. % of SiO2 is present based on the total weight of the mixed oxide. Other constituents <1 wt. % Bulk density 250-1500 g/l.
    Type: Grant
    Filed: September 22, 1999
    Date of Patent: August 13, 2002
    Assignee: Degussa AG
    Inventors: Helmfried Krause, Hermanus Gerhardus Josef Lansink Rotgerink, Thomas Tacke, Helmut Mangold, Heike Riedemann, Manfred Fuchs
  • Patent number: 6376421
    Abstract: Aluminum-magnesium silicate- or fluorinated magnesium silicate- aerogels which may be calcined, chemically modified, ion-exchanged, agglomerated, used as a component of a catalyst composition for an addition polymerization; supported versions thereof; and processes for polymerization are disclosed.
    Type: Grant
    Filed: February 27, 2001
    Date of Patent: April 23, 2002
    Assignee: The Dow Chemical Company
    Inventors: Tao Sun, David R. Wilson, Juan M. Garces
  • Patent number: 6372685
    Abstract: Silica powders and mixed silica-oxide powders and methods of preparing such powders for use as catalyst supports for polymerization processes.
    Type: Grant
    Filed: April 25, 2000
    Date of Patent: April 16, 2002
    Assignee: Chevron Phillips Chemical Company, LP
    Inventors: Theresa A. Pecoraro, Ignatius Y. Chan, Darryl K. Whaley, Pamela R. Auburn
  • Patent number: 6329315
    Abstract: Frangible, spray dried agglomerate catalyst supports are provided, e.g. of silica gel, which possess a controlled morphology of microspheroidal shape, rough, scabrous appearance, and interstitial void spaces which penetrate the agglomerate surface and are of substantially uniform size and distribution. The agglomerates also possess a 1-250 micron particle size, 1-1000 m2/gm. surface area, and an Attrition Quality Index (AQI) of at least 10. The agglomerates are derived from a mixture of dry milled inorganic oxide particles, e.g. silica gel, and optionally but preferably wet milled inorganic oxide particles, e.g. silica gel particles, (which preferably contain a colloidal segment of <1 micron particles) slurried in water for spray drying. The high AQI assures that the agglomerates are frangible and that polymerization performance is improved.
    Type: Grant
    Filed: June 19, 1997
    Date of Patent: December 11, 2001
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Dean Alexander Denton, Michael J. Carney
  • Patent number: 6313061
    Abstract: A method of making frangible, spray dried agglomerate catalyst supports is provided, e.g. of silica gel, which possess a controlled morphology of microspheroidal shape, preferably a rough, scabrous appearance, and interstitial void spaces which penetrate the agglomerate. The agglomerates also possess a 4-250 micron particle size, 1-1000 m2/gm. surface area, and an Attrition Quality Index (AQI) of at least 10. The method comprises dry milling inorganic oxide particles, e.g. silica gel, wet milling the dry milled inorganic oxide particles (to preferably impart a colloidal segment of <1 micron particles), and spray drying the particles. The high AQI assures that the agglomerates are frangible and that polymerization performance is improved. The controlled morphology is believed to permit the constituent particles of the agglomerates to be more uniformly impregnated or coated with conventional olefin polymerization catalysts.
    Type: Grant
    Filed: December 22, 1998
    Date of Patent: November 6, 2001
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Dean A. Denton, Michael J. Carney
  • Patent number: 6288007
    Abstract: A catalyst with a high sulphur tolerance for the hydrogenation of middle distillate aromatics which comprises as a support (a) an alumina, the surface of which has been modified by contacting it with a silicon-containing compound, or (b) a silica, the surface of which has been modified by contacting it with an aluminum-containing compound. The support has been treated with air, oxygen or water vapor at an elevated temperature in order to convert the said silicon-containing compound or the said aluminum-containing compound to oxide form. The hydrogenating component of the catalyst is one or more metals of the platinum group.
    Type: Grant
    Filed: December 15, 1999
    Date of Patent: September 11, 2001
    Assignee: Fortum Oil & Gas Oy
    Inventors: Marina Lindblad, Aimo Rautiainen, Göran Sandström
  • Publication number: 20010012819
    Abstract: Aluminum-magnesium silicate- or fluorinated magnesium silicate- aerogels which may be calcined, chemically modified, ion-exchanged, agglomerated, used as a component of a catalyst composition for an addition polymerization; supported versions thereof; and processes for polymerization are disclosed.
    Type: Application
    Filed: February 27, 2001
    Publication date: August 9, 2001
    Inventors: Tao Sun, David R. Wilson, Juan M. Garces
  • Patent number: 6267874
    Abstract: The present invention relates to a hydrotreating catalyst composed of a carrier having a Brønsted acid content of at least 50 &mgr;mol/g such as a silica-alumina carrier or a silica-alumina-third component carrier, in which the silica is dispersed to high degree and a Brønsted acid content is at least 50 &mgr;mol/g, and at least one active component (A) selected from the elements of Group 8 of the Periodic Table and at least one active component (B) selected from the elements of Group 6 of the Periodic Table, supported on said carrier. The present invention also relates to a method for hydrotreating hydrocarbon oils using the same. The hydrotreating catalyst of the present invention provides excellent tolerance to the inhibiting effect of hydrogen sulfide, high desulfurization activity, and exhibits notable effects for deep desulfurization of hydrocarbon oils containing high contents of sulfur, in particular gas oil fractions containing difficult-to-remove sulfur compounds.
    Type: Grant
    Filed: September 27, 1999
    Date of Patent: July 31, 2001
    Assignee: TonenGeneral Sekiyu K.K.
    Inventors: Masahiko Iijima, Yoshinobu Okayasu
  • Patent number: 6235677
    Abstract: A process is disclosed for producing hydrocarbons by contacting a feed stream comprising hydrogen and carbon monoxide with a catalyst in a reaction zone maintained at conversion-promoting conditions effective to produce an effluent stream comprising hydrocarbons. The process is characterized by using a catalyst prepared by a method involving (1) forming a catalyst gel by destabilizing an aqueous colloid comprising (a) at least one catalytic metal for Fischer-Tropsch reactions (e.g., iron, cobalt, nickel and/or ruthenium), (b) colloidal cerium oxide, zirconium oxide, titanium oxide and/or aluminum oxide, and optionally (c) Al(OR)3, Si(OR)4, Ti(OR)4 and/or Zr(OR)4 where each R is an alkyl group having from 1 to 6 carbon atoms; and (2) drying the gel.
    Type: Grant
    Filed: August 18, 1999
    Date of Patent: May 22, 2001
    Assignee: Conoco Inc.
    Inventors: Leo E. Manzer, Kostantinos Kourtakis
  • Patent number: 6218330
    Abstract: A process for the preparation of supported metallocene-alumoxane catalysts comprising the steps of: a) reacting a metallocene with an alumoxane at a temperature comprised between 15 and 50° C., b) recovering a mixture comprising an alkylmetallocenium cation and an anionic alumoxane oligomer, c) reacting said mixture with a support, and d) recovering a supported metallocene-alumoxane catalyst as a dry solid, the reaction with the support being carried out at a temperature comprised between 85° C. and 110° C., preferably between 90 and 130° C., and their use for the polymerization or copolymerization of olefins.
    Type: Grant
    Filed: April 21, 1999
    Date of Patent: April 17, 2001
    Assignee: Fina Research, S. A.
    Inventors: Abbas Razavi, Guy Debras
  • Patent number: 6204217
    Abstract: Process for the preparation of a micro-mesoporous gel consisting of a silica matrix in which one or more metal oxides are possibly dispersed comprising: (a) subjecting to hydrolysis and gelification a tetra-alkylorthosilicate with an alkyl-trimethylammonium hydroxide having the formula R(CH3)3N—OH, wherein R is selected from n-butyl, n-pentyl, n-hexyl and n-heptyl, possibly in the presence of one or more metal compounds, the molar ratios in this mixture being: R—OH/SiO2=0-10; R(CH3)3N—OH/SiO2=0.05-0.4; H2O/SiO2=5-40; metal oxides/SiO2=0-0.02; whereas the ratio H2O/R(CH3)3N—OH varies according to the number of carbon atoms in the alkylic chain R as follows: R=n-butyl, H2O/R(CH3-)3N—OH<35; R=n-pentyl, H2O/R(CH3)3N—OH<70; R=n-hexyl, H2O/R(CH3)3N—OH<102; R=n-heptyl, H2O/R(CH3)3N—OH<136; (b) subjecting the gel or solid obtained in step (a) to drying and calcination.
    Type: Grant
    Filed: October 14, 1998
    Date of Patent: March 20, 2001
    Assignee: Eni Tecnologie S.p.A.
    Inventors: Giannino Pazzucconi, Gianluca Bassi, Roberto Millini, Carlo Perego, Giovanni Perego, Giuseppe Bellussi
  • Patent number: 6165430
    Abstract: The invention is a selective reduction catalyst useful for converting exhaust gases generated by a diesel engine where the atmosphere is oxidizing. The catalyst comprises 5-40 wt. % silica of a silica/alumina sol-gel produced support carrying 0.25-4.0 wt. % platinum.
    Type: Grant
    Filed: July 20, 1998
    Date of Patent: December 26, 2000
    Assignee: Ford Global Technologies, Inc.
    Inventors: Robert J. Kudla, Chaitanya Kumar Narula, Mohinder S. Chattha
  • Patent number: 6127301
    Abstract: The present invention provides a novel catalyst system which can be preferably used in the trimerization, oligomerization reaction or polymerization reaction of an olefin, and a method for the trimerization, oligomerization or polymerization reaction of an olefin, which comprises using the catalyst system. A catalyst system obtained by contacting the following components (A) to (C):(A) a chromium compound,(B) an imine compound, and(C) a metal alkyl compound, and a method for the trimerization, oligomerization or polymerization reaction of an olefin, which comprises using the catalyst system are disclosed.
    Type: Grant
    Filed: June 27, 1997
    Date of Patent: October 3, 2000
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Kiyoshi Iwanaga, Mitsuhisa Tamura
  • Patent number: 6121187
    Abstract: The present invention relates to amorphous microporous mixed oxides, characterized by having, in dried form, a narrow pore size distribution (half width <.+-.10% of the pore diameter) of micropores with diameters in the range of <3 nm and a total surface area of between 20 and 1000 m.sup.2 /g, containing a fraction of from 0.1 to 20% by weight of non-hydrolyzable organic groups, and to a process for the preparation of such oxides.
    Type: Grant
    Filed: October 26, 1998
    Date of Patent: September 19, 2000
    Assignee: Studiengesellschaft Kohle mbH
    Inventor: Wilhelm F. Maier
  • Patent number: 6107236
    Abstract: Silica powders and mixed silica-oxide powders and methods of preparing such powders for use as catalyst supports for polymerization processes.
    Type: Grant
    Filed: April 14, 1998
    Date of Patent: August 22, 2000
    Assignee: Chevron Chemical Company LLC
    Inventors: Theresa A. Pecoraro, Ignatius Y. Chan, Darryl K. Whaley, Pamela R. Auburn
  • Patent number: 6103916
    Abstract: A silver catalyst excelling in catalytic performance and permitting production of ethylene oxide with a high selectivity for a long time, a method for the production of ethylene oxide by the use of the silver catalyst, and a method for ideal manufacture of the silver catalyst are disclosed. The silver catalyst is formed by depositing silver on a carrier having .alpha.-alumina as a main component and used for the production of ethylene oxide, which carrier of the silver catalyst has undergone the following treatment capable of yielding a wash exhibiting a resistivity index of not less than 10,000 .OMEGA..multidot.cm (25.degree. C.):(Method of treatment)In a conical beaker having an inner volume of 500 ml, 300 ml of the carrier is placed, dried therein at 120.degree. C. for two hours, and boiled in conjunction with (water absorption +220) ml of pure water added thereto under normal pressure at 90.degree. C.
    Type: Grant
    Filed: February 19, 1999
    Date of Patent: August 15, 2000
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Hitoshi Takada, Masahide Shima
  • Patent number: 5981425
    Abstract: A coating composition which is excellent in water resistance, weatherability and durability and can maintain its appearance for a prolonged period of time can be provided. A coating composition comprising a coating component and a photocatalyst containing calcium phosphate and titanium oxide is disclosed. As the photocatalyst, use is made of titanium oxide particles partially covered thereon with calcium phosphate, or porous body coated thereon with a film of titanium oxide, the film of titanium oxide being further covered partially thereon with calcium phosphate. The crystal form of titanium oxide is preferably anatase. The organic coating includes vinyl-type synthetic resin emulsions, and the inorganic coating is e.g. a solution containing a metal alkoxide for forming a film by a sol-gel method.
    Type: Grant
    Filed: April 2, 1999
    Date of Patent: November 9, 1999
    Assignees: Agency of Industrial Science & Tech., Daicel Chemical Ind., Ltd., H. Taoda, T. Nonami
    Inventors: Hiroshi Taoda, Toru Nonami, Takaaki Fujiwa, Masahiro Kagotani
  • Patent number: 5917069
    Abstract: An adsorbent is described based on an inorganic support material with exchangeable mono- and divalent cations, characterized by the fact that the specific surface of the support material is >100 m.sup.2 /g, its cation exchange capacity is>30 mg-equiv/100 g, its pore volume is>0.15 m/g, the pH value of an aqueous suspension of 8 g of support material in 100 mL of H.sub.2 O is<7.5 and that at least 60, preferably at least 70% of the exchangeable mono- and/or divalent cations are exchanged by cations acting as Lewis acids, preferably Al.sup.3 + cations.
    Type: Grant
    Filed: August 15, 1997
    Date of Patent: June 29, 1999
    Assignee: Sud-Chemie AG
    Inventors: Wolfgang Buckl, Hermann Ebert, Helmut Eicke, Norbert Schall, Werner Zschau, Reinhard Hahn
  • Patent number: 5916837
    Abstract: Porous microcomposites comprising a perfluorinated ion-exchange polymer (PFIEP) containing pendant metal cation exchanged sulfonate groups, metal cation exchanged carboxylate groups, or metal cation exchanged sulfonate and carboxylate groups, wherein the metal cation may be ligand coordinated, and optionally pendant sulfonic acid groups, carboxylic acid groups, or sulfonic acid and carboxylic acid groups, the PFIEP being entrapped within and highly dispersed throughout a network of metal oxide, a network of silica or a network of metal oxide and silica can be prepared from PFIEP and one or more precursors selected from the group consisting of a metal oxide precursor, a silica precursor, and a metal oxide and silica precursor using an in situ process. Preferred metal cations are Cr, Sn, Al, Fe, Os, Co, Zn, Hg, Li, Na, Cu, Pd or Ru. Such microcomposites have a first set of pores having a pore size diameter ranging from about 0.
    Type: Grant
    Filed: July 19, 1996
    Date of Patent: June 29, 1999
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Mark Andrew Harmer, Qun Sun