Clay Patents (Class 502/80)
  • Patent number: 7417005
    Abstract: Anionic clay compounds such as hydrotalcite-like compounds can be made by a process wherein a non-hydrotalcite-like compound (or a hydrotalcite-like compound) are heat treated and then hydrated to form hydrotalcite-like compounds having properties (e.g., increased hardness and/or density) that differ from those of hydrotalcite-like compounds made by prior art methods wherein non-hydrotalcite-like compounds (or hydrotalcite-like compounds) are not similarly heat treated and hydrated to form such hydrotalcite-like compounds.
    Type: Grant
    Filed: August 10, 2006
    Date of Patent: August 26, 2008
    Assignee: Intercal, Inc.
    Inventor: Albert A. Vierheilig
  • Publication number: 20080179253
    Abstract: A porous particulate material for treating a fluid containing a contaminant is disclosed. The particulate material comprises a cementitious matrix or binder and treated bauxite refinery residue or red mud. At least a portion of the pores in the particulate material is open cell or interconnected pores. The invention also relates to the use of a reactive permeable barrier comprising porous material, for treating a contaminated fluid. Also disclosed is a method for producing porous particulate material for treating a contaminated fluid and a method for treating a contaminated fluid, in which the porous material is used. The invention furthermore relates to a cementitious composition comprising partially neutralised red mud and cement, wherein the partially neutralised red mud has been pre-treated by contacting it with water having a total hardness supplied by calcium, magnesium or a combination thereof, of at least 3.5 millimoles per litre calcium carbonate equivalent.
    Type: Application
    Filed: December 24, 2004
    Publication date: July 31, 2008
    Inventors: Malcolm William Clark, Fiona Gaye Davies-McConchie, David McConchie, Leon Munro, Daniel Faux
  • Publication number: 20080171650
    Abstract: The present invention in certain embodiments is directed to a catalytic substrate suitable for use in a number of applications, including as a substrate in a catalytic converter or a particulate filter. Another aspect of the present invention is a filtering substrate suitable for use in a number of applications, including as a substrate in a particulate filter, such as a diesel particulate filter (DPF), or diesel particulate trap (DPT). The invention also provides an improved substrate for removing and/or eliminating pollutants from the exhaust of combustion engines. The catalytic substrate and filtering substrate provide, in certain embodiments, improvements in removing pollutants from an exhaust gas.
    Type: Application
    Filed: October 31, 2007
    Publication date: July 17, 2008
    Inventors: Gordon S. Alward, Robert A. DiChiara
  • Patent number: 7396522
    Abstract: The present invention relates to a catalyst useful for removal of hydrogen sulphide from gas streams and its conversion to sulphur, a process for preparing such catalyst and a method for removing of hydrogen sulphide using said catalyst.
    Type: Grant
    Filed: December 5, 2003
    Date of Patent: July 8, 2008
    Inventors: Jayalekshmy Ayyer, Pradipkumar Maheshchandra Shah, Virendra Bhikhabhai Patel
  • Publication number: 20080161180
    Abstract: A catalyst composition suitable for reacting hydrocarbons such as in fluidized catalytic cracking (FCC) comprises an attrition-resistant particulate having at least 30% of an intermediate pore zeolite, kaolin, a phosphorous compound, and a high density unreactive component. An example of an unreactive component is alpha-alumina. The catalyst can also contain a reactive alumina of high surface area.
    Type: Application
    Filed: March 5, 2008
    Publication date: July 3, 2008
    Inventors: Gary M. Smith, Barry K. Speronello
  • Patent number: 7390766
    Abstract: Stable catalyst carrier impregnating solutions can be prepared using a component of a Group VIB metal, e.g., molybdenum, at high concentration, a component of a Group VIII metal, e.g., nickel, at low concentration, and a phosphorous component, e.g., phosphoric acid, at low concentration, provided that the Group VIII metal is in a substantially water-insoluble form and a particular sequence of addition of the components is followed, even when a substantially water-insoluble form of the Group VIB component is used. The resulting stabilized impregnating solution can be supplemented with additional Group VIII metal in water-soluble form to achieve increased levels of such metal in the final catalyst. Furthermore, uncalcined catalyst carriers impregnated with the stable solution and subsequently shaped, dried and calcined, have unexpectedly improved performance when used in the hydroprocessing of heavy hydrocarbon feedstocks.
    Type: Grant
    Filed: November 20, 2003
    Date of Patent: June 24, 2008
    Inventor: Darryl P. Klein
  • Patent number: 7390358
    Abstract: A method for preparing a modified kaolin clay, includes the steps of providing a kaolin clay material having a starting ratio of silica to alumina; mixing the kaolin clay material with acid so as to form a substantially homogenous paste; calcining the paste so as to provide a calcined acid-treated clay material; mixing the calcined acid-treated clay material in water so as to form a suspension; precipitating aluminum from the suspension so as to produce a reduced aluminum suspension; and obtaining a modified clay material from the reduced aluminum suspension, wherein the modified clay material has a final ratio of silica to alumina which is higher than the starting ratio.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: June 24, 2008
    Assignee: Intevep, S.A.
    Inventors: Andres M. Quesada Perez, Gerardo Vitale-Rojas
  • Publication number: 20080142447
    Abstract: Processes for the treatment of wastewater comprising incorporating a delaminated nanoparticulate clay into a treatment mixture to form a coagulant. The nanoparticulate clay comprises an anionic coagulant. Preferred nanoparticulate clays are bentonite clays and hectorite clays.
    Type: Application
    Filed: November 15, 2007
    Publication date: June 19, 2008
    Inventors: David Brian MITCHELL, Gary Engstrom
  • Publication number: 20080119351
    Abstract: A decomposing catalyst for decomposing perfluorinated compound, carbon hydrofluoride, perchloro-carbon and carbon hydrochloride gas compounds as well as a method of producing the catalyst, the catalyst contains at least high temperature durable carrier with large surface areas and effectively decomposed components; the effectively decomposed components further includes transitional metal compounds, precious metals and phosphate. The above materials are mixed, granulated, sintered, immersed in solution and dried to form the decomposing catalyst able to decompose gaseous perfluorinated compound and fluorochloro-compounds. The method particularly suits decomposing perfluorinated compound, carbon hydrofluoride, perchloro-carbon and carbon hydrochloride gases exhausted from the processes of dry etch and chemical vapor deposition (CVD) in producing semiconductors and liquid crystal panels.
    Type: Application
    Filed: November 22, 2006
    Publication date: May 22, 2008
    Inventor: Po-Chu Liu
  • Patent number: 7361714
    Abstract: The invention relates to the hydrogenation of aromatic compounds, in particular the preparation of alicyclic polycarboxylic acids or esters of these, via ring hydrogenation of the corresponding aromatic polycarboxylic acids or esters of these, and also to catalysts suitable for this purpose.
    Type: Grant
    Filed: April 26, 2003
    Date of Patent: April 22, 2008
    Assignee: OXENO Olefinchemie GmbH
    Inventors: Michael Grass, Alfred Kaizik, Wilfried Bueschken, Axel Tuchlenski, Dietrich Maschmeyer, Kurt-Alfred Gaudschun, Frank Brocksien
  • Patent number: 7329626
    Abstract: A method for making a solid catalytic component for a Ziegler-Natta catalyst includes contacting a particulate porous support with a solution of a hydrocarbon soluble organomagnesium precursor compound in a hydrocarbon solvent; and reacting said hydrocarbon soluble organo-magnesium precursor compound with an amount of aliphatic or aromatic alcohol, said amount being within an acceptable range of a molar equivalent of aliphatic or aromatic alcohol calculated according to formula (I): Equ Alkanol = 2 ? ยท [ ( mmole ? ? MgR ? / ? g ? ? support ) - 2.1 - 0.
    Type: Grant
    Filed: September 7, 2004
    Date of Patent: February 12, 2008
    Assignee: Lummus Novolen Technology GmbH
    Inventors: Frank Wolf Spaether, David Andrew Presken
  • Patent number: 7314843
    Abstract: The invention relates to a process for synthesis of lamellar solids based on silicates comprising: i) a mixing stage, during which a mixture that comprises an alkaline metal, a silica source, water and an organic structuring agent is prepared, and ii) a crystallization stage during which this mixture is kept under conditions allowing the formation of a crystalline solid. The organic structuring agent that is used in this process comprises an alcohol group and an amine group that are separated by a hydrocarbon chain.
    Type: Grant
    Filed: January 31, 2005
    Date of Patent: January 1, 2008
    Assignee: Institut Francais du Petrole
    Inventors: Eva Barea, Vicente Fornes, Avelino Corma, Patrick Bourges, Emmanuelle Guillon
  • Patent number: 7300899
    Abstract: A lithium exchanged zeolite X adsorbent blend with improved performance characteristics produced by preparing a zeolite X, preparing a binder which includes highly dispersed attapulgite fibers wherein the tapped bulk density of the highly dispersed attapulgite fibers measured according to DIN/ISO 787 is more than about 550 g/ml, mixing the zeolite X with the binder to form a mixture, forming the mixture into a shaped material, ion exchanging the zeolite X at least 75% with lithium ions, and calcining the shaped material.
    Type: Grant
    Filed: July 8, 2005
    Date of Patent: November 27, 2007
    Assignee: Zeochem, LLC
    Inventors: Kerry Weston, Dave Jaussaud, Robert L. Chiang
  • Patent number: 7288499
    Abstract: A regenerable, high-capacity sorbent for removal of mercury from flue gas and processes and systems for making and using the sorbent. A phyllosilicate substrate, for example vermiculite or montmorillinite, acts as an inexpensive support to a thin layer for a polyvalent metal sulfide, ensuring that more of the metal sulfide is engaged in the sorption process. The sorbent is prepared by ion exchange between the silicate substrate material and a solution containing one or more of a group of polyvalent metals including tin (both Sn(II) and Sn(IV)), iron (both Fe(II) and Fe(III)), titanium, manganese, zirconium and molybdenum, dissolved as salts, to produce an exchanged substrate. Controlled reaction of a sulfide ion source with the one or more polyvalent metals that are exchanged on the silicate substrate produces the sorbent. The sorbent is used to absorb elemental mercury or oxidized mercury species such as mercuric chloride from flue gas containing acid gases (e.g.
    Type: Grant
    Filed: February 19, 2004
    Date of Patent: October 30, 2007
    Assignee: ADA Technologies, Inc
    Inventors: John S Lovell, Craig S Turchi, Thomas E Broderick
  • Patent number: 7273914
    Abstract: Methods for making polyolefins are disclosed. One method comprises polymerizing an olefin in the presence of a catalyst system comprising a single-site complex, an agglomerated metal oxide/clay support-activator, and an ionic borate. Including an ionic borate with the support-activator provides an unexpected boost in catalyst activity and gives polyolefins with high molecular weight and improved comonomer incorporation. In another method of the invention, an olefin is polymerized in the presence of an indenoindolyl metal alkylated complex and an agglomerated metal oxide/clay support-activator. Use of alkylated indenoindolyl complexes with the support-activators provides improved activity compared with metal halides.
    Type: Grant
    Filed: August 3, 2005
    Date of Patent: September 25, 2007
    Assignee: Equistar Chemicals, LP
    Inventors: Shaotian Wang, Barbara M. Tsuie, Mark P. Mack, Edward S. Vargas, Debra L. Beran
  • Publication number: 20070190376
    Abstract: The water gas shift catalyst for a reformer of a fuel cell system where a supporter includes a clay and ZnO filled between layers of the clay; and an active material including CuO supported on the supporter.
    Type: Application
    Filed: January 19, 2007
    Publication date: August 16, 2007
    Inventor: Leonid Gorobinskiy
  • Patent number: 7235507
    Abstract: A diesel oxidation catalyst comprising a honeycomb substrate washcoated with a mixture of clay, a refractory oxide and a zeolite is disclosed. The washcoated substrate is subsequently deposited with a precious metal catalyst and a sulfur oxidation suppressant.
    Type: Grant
    Filed: August 14, 2004
    Date of Patent: June 26, 2007
    Assignee: Sud-Chemie Inc.
    Inventors: Li Xu, Yinyan Huang, Gregory Cullen, Zhongyuan Dang, Amiram Bar-Ilan
  • Patent number: 7183235
    Abstract: The present invention is directed to a sorbent comprising a disordered polyvalent metal oxide on the surface of an inert substrate. The substrate can be a layered silicate, such as vermiculite, an aluminosilicate such as montmorillonite, or a nonlayered silicate such as a zeolite. The sorbent removes ionic contaminants, such as arsenic, from process streams.
    Type: Grant
    Filed: June 20, 2003
    Date of Patent: February 27, 2007
    Assignee: ADA Technologies, Inc.
    Inventors: John Stanley Lovell, Thomas E. Broderick, Craig S. Turchi, Amanda K. Kimball
  • Patent number: 7176266
    Abstract: A catalyst for polymerizing vinyl compounds or ?-olefins according to the present invention includes (A) a transition metal complex, (B) a clay, clay mineral or ion-exchangeable layered compound, modified with at least one organic compound selected from the group consisting of quaternary ammonium salts, amine compounds, and adducts of amine and Brรถnsted acid, and (C) at least one aluminoxy compound. The transition metal in (A) is selected from Groups 4 to 10 or Groups 8 to 10 of the Periodic Table for catalysts for vinyl compounds or ?-olefins, respectively. The aluminoxy compound is represented by the general Formula wherein a plurality of R groups are each independently C1-10 hydrocarbon group and at least one of the R groups is a hydrocarbon group having 2 or more carbon atoms; and z is an integer of 2 or more for catalyst for vinyl compounds and 2 to 4 for catalysts for ?-olefins.
    Type: Grant
    Filed: July 13, 2004
    Date of Patent: February 13, 2007
    Assignee: Idemitsu Kosan Co. Ltd.
    Inventors: Haruhito Sato, Masami Watanabe, Masahiko Kuramoto
  • Patent number: 7160830
    Abstract: The present invention relates to a process for the preparation of catalyst particles with a particle diameter in the range 20โ€“2000 microns involving the steps of agitating at least two dry catalyst ingredients, spraying a liquid binding agent on the catalyst ingredients while continuing the agitation, and isolating formed catalyst particles with the desired particle diameter and comprising the catalyst ingredients. In contrast to the conventional way of preparing such particles, spray-drying, the present process allows the formation of small particles from slurries with a high solids content. Hence, smaller amounts of liquid have to be evaporated, which makes the process energy efficient.
    Type: Grant
    Filed: December 10, 2003
    Date of Patent: January 9, 2007
    Assignee: Albemarle Netherlands, B.V.
    Inventors: Monique Van Der Zon, Erik Jeroen Laheij, Paul O'Connor
  • Patent number: 7112313
    Abstract: Anionic clay compounds such as hydrotalcite-like compounds can be made by a process wherein a non-hydrotalcite-like compound (or a hydrotalcite-like compound) are heat treated and then hydrated to form hydrotalcite-like compounds having properties (e.g., increased hardness and/or density) that differ from those of hydrotalcite-like compounds made by prior art methods wherein non-hydrotalcite-like compounds (or hydrotalcite-like compounds) are not similarly heat treated and hydrated to form such hydrotalcite-like compounds.
    Type: Grant
    Filed: November 7, 2002
    Date of Patent: September 26, 2006
    Assignee: Intercat, Inc.
    Inventor: Albert A Vierheilig
  • Patent number: 7087288
    Abstract: Layered silicate materials and applications are disclosed. In one aspect, the invention features layered silicate materials having pores that run generally perpendicular to the layers. In another aspect, the invention features composite materials including layered framework materials (e.g., layered silicate materials, layered Aluminophosphate materials, layered tin sulfides) having pores or openings that run generally perpendicular to the layers.
    Type: Grant
    Filed: October 19, 2004
    Date of Patent: August 8, 2006
    Assignee: University of Massachusetts
    Inventors: Michael Tsapatsis, Hae-Kwon Jeong, Sankar Nair
  • Patent number: 7063804
    Abstract: Compositions including alum and a smectite mineral material for the clarification of bodies of water by removal of dissolved solids, dissolved organic materials and other anions such as fluoride and chloride as well as the removal of total phosphorus from such bodies of water.
    Type: Grant
    Filed: October 7, 2004
    Date of Patent: June 20, 2006
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Charles R. Landis, Steven Reed Gray
  • Patent number: 7056537
    Abstract: The present invention relates to a method of abating hydrogen sulfide gas emitted by or generated in landfills. Certain embodiments of the present invention relate to contacting hydrogen sulfide gas with Fuller's earth or other carrier materials and metals such as silver, copper, iron, zinc or mixtures thereof, and other components.
    Type: Grant
    Filed: March 11, 2004
    Date of Patent: June 6, 2006
    Assignee: Aceto Corporation
    Inventor: Richard Weschler
  • Patent number: 7041752
    Abstract: Polytetrahydrofuran, polytetrahydrofuran copolymers, diesters or monoesters of these polymers are prepared by polymerization of tetrahydrofuran in the presence of at least one telogen and/or comonomer, which is in the form of shaped catalyst bodies or catalyst particles having a volume of the individual shape of the body or particle of at least 0.05 mm3, preferably at least 0.2 mm3, in particular 1 mm3, and has at least one of the features a) and b): a) a pore radius distribution having at least one maximum in the pore radius range from 100 to 5000 ?, b) a pore volume of catalyst pores having radii of 200โ€“3000 ? of greater than 0.05 cm3/g and/or a pore volume of pores having radii of 200โ€“5000 ? of greater than 0.075 cm3/g and/or a pore volume of pores having radii of >200 ? of greater than 0.1 cm3/g.
    Type: Grant
    Filed: June 24, 2002
    Date of Patent: May 9, 2006
    Assignee: BASF Aktiengesellschaft
    Inventors: Stephan Schlitter, Christoph Sigwart, Walter Dรถrflinger, Michael Hesse, Rolf-Hartmuth Fischer
  • Patent number: 7025873
    Abstract: Cationic layered materials, a process for their preparation and their use in hydrocarbon conversion, purification, and synthesis processes, such as fluid catalytic cracking. Cationic layered materials are especially suitable for the reduction of SOx and NOx emissions and the reduction of the sulfur and nitrogen content in fuels like gasoline and diesel. The new preparation process avoids the use of metal salts and does not require the formation of anionic clay as an intermediate.
    Type: Grant
    Filed: June 24, 2003
    Date of Patent: April 11, 2006
    Assignees: Albemarle Netherlands BV., Akzo Nobel NV.
    Inventors: Paul O'Connor, William Jones, Dennis Stamires
  • Patent number: 7022304
    Abstract: The present invention is directed to a process for the preparation of a doped anionic clay. In said process a trivalent metal source is reacted with a divalent metal source, at least one of the metal sources being either doped boehmite, doped MgO or doped brucite, to obtain a doped anionic clay. Suitable dopants are compounds containing elements selected from the group of alkaline earth metals (for instance Ca and Ba), alkaline metals, transition metals (for example Co, Mn, Fe, Ti, Zr, Cu, Ni, Zn, Mo, W, V, Sn), actinides, rare earth metals such as La, Ce, and Nd, noble metals such as Pt and Pd, silicon, gallium, boron, titanium, and phosphorus.
    Type: Grant
    Filed: February 7, 2002
    Date of Patent: April 4, 2006
    Assignee: Akzo Nobel N.V.
    Inventors: Dennis Stamires, William Jones, Paul O'Connor
  • Patent number: 7008895
    Abstract: Highly active supported catalyst compositions and methods for producing more active supported catalyst compositions are disclosed. Said methods comprise steps for applying an adhesive coating of a catalytically active exfoliated transition metal dichalcogenide and promoters to the surface of a support medium prior to filling the pores of the support medium with catalytically active metals and/or promoters. A new method for applying a surface coating to a support is also disclosed.
    Type: Grant
    Filed: January 4, 2003
    Date of Patent: March 7, 2006
    Inventor: David Deck Rendina
  • Patent number: 7008896
    Abstract: The present invention is directed to a process for the preparation of crystalline anionic clay-containing bodies from sources comprising a trivalent metal source and a divalent metal source comprising the steps of: a) preparing a precursor mixture containing a liquid, a divalent metal source and/or a trivalent metal source, at least one of them being insoluble in the liquid; b) shaping the precursor mixture to obtain shaped bodies; c) optionally thermally treating the shaped bodies; and d) aging the shaped bodies to obtain crystalline anionic clay-containing bodies; with the proviso that if no divalent or trivalent metal source is present in the precursor mixture of step a), such source is added to the shaped bodies after shaping step b) and before aging step d); and with the further proviso that the combined use of an aluminium source as the trivalent metal source and a magnesium source as the divalent metal source is excluded.
    Type: Grant
    Filed: January 31, 2002
    Date of Patent: March 7, 2006
    Assignee: Akzo Nobel NV
    Inventors: Dennis Stamires, William Jones, Paul O'Connor
  • Patent number: 6995108
    Abstract: A process for producing catalysts by acid activation of phyllosilicates and coating with catalytically active metal ions wherein the acid activation is carried out in the presence of catalytically active metal ions. The solution which forms during acid activation together with the remaining solution which contains the excess, catalytically active cations are separated. The catalysts can be used for proton-catalyzed and Lewis acid-catalyzed reactions, especially for conversion of higher olefins with aromatic hydroxy compounds and amines, for esterification and dehydration reactions and for purification of aromatics.
    Type: Grant
    Filed: July 9, 2000
    Date of Patent: February 7, 2006
    Assignee: Sud-Chemie AG
    Inventor: Uwe Flessner
  • Patent number: 6967182
    Abstract: The present invention relates to a catalyst comprising at least one metal loaded on a hydrotalcite-based carrier material which has the following formula in its uncalcined form: M2+aM3+b(An?)(OH)2a+3b?n*xH2O, wherein M2+ is at least one divalent metal; and M3+ is at least one trivalent metal; A is an n-valent anion, n is 1 or 2 and a and b are positive numbers, a>b. When said at least one metal is selected from the group VIII of the periodical system of the elements a useful (de)hydrogenation catalyst is achieved.
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: November 22, 2005
    Assignee: Den Norske Stats Oljeselskap
    Inventors: Unni Olsbye, Duncan Akporiaye, Erling Rytter, Morten Rรธnnekleiv
  • Patent number: 6953763
    Abstract: The instant method produces Mn(III) and Mn(VII) in stabilized form. Stabilized Mn(II), Mn(III), Mn(IV), and Mn(VII) are also formed on solid supports. Solid supported Mn(VII) is prepared by first reacting an H-saturated support with Mn(II) in solution. Mn(III) substituted Fe oxide coated on natural zeolite (FMNZ) is prepared by reacting Mn(II) and Fe(III) to a natural zeolite equilibrated with 2 N NaoH. The resulting Mn(IV) and Mn(III) oxide is precipitated from solution and dried to give supported Mn(IV) or Mn(III). The Mn(IV) material is reacted with 1,4-phenylenediamine (PDA) to form supported Mn(VII). In another aspect of the invention, Mn(II) is synthesized by adding 1,2-phenylenediamine dihydrochloride to uncoated and clay and-zeolite coated MnO2. Mn(II) and Mn(III) are synthesized by adding 1,2-phenylenediamine dihydrochloride and 1,4-phenylenediamine dihydrochloride, respectively, to uncoated Mn containing clays, and clay and-zeolite coated MnO2.
    Type: Grant
    Filed: May 6, 2003
    Date of Patent: October 11, 2005
    Assignee: ChK Group, Inc.
    Inventors: Rajan K. Vempati, David Y. Son
  • Patent number: 6953488
    Abstract: There is provided a process for preparation of synthesis gas from feedstocks containing methane and/or higher hydrocarbons having from about 2 to about 12 carbon atoms by an initial catalytic treatment of feedstock to provide a methane-containing gaseous mixture substantially free of compounds having 2 or more carbon atoms, and reforming the gaseous mixture at elevated temperatures using nickel-containing catalytic materials that are unusually active under mild conditions of conversion and resistant to deactivation. The process consists fundamentally in converting the higher hydrocarbon compounds to form the methane-containing gaseous mixture in an initial conversion zone containing a catalyst while controlling temperatures within the initial conversion zone to temperatures in a range downward from about 500ยฐ C. to about 300ยฐ C., and reforming the methane-containing gaseous mixture in a subsequent zone to form synthesis gas.
    Type: Grant
    Filed: March 13, 2003
    Date of Patent: October 11, 2005
    Assignee: BP Corporation North America Inc.
    Inventors: Alakananda Bhattacharyya, Wen-Dong Chang
  • Patent number: 6951830
    Abstract: The invention relates to a catalyst composition, a method of making the same and its use in the conversion of a feedstock, preferably an oxygenated feedstock, into one or more olefin(s), preferably ethylene and/or propylene The catalyst composition a molecular sieve, such as a silicoaluminophosphate and/or an aluminophosphate, hydrotalcite, and optionally a rare earth metal component
    Type: Grant
    Filed: August 6, 2003
    Date of Patent: October 4, 2005
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventor: Marcel J. G. Janssen
  • Patent number: 6946420
    Abstract: The present invention is directed to a coordinating catalyst system comprising at least one pre-catalyst selected from late transition metal bidentate or tridentate ligand containing compounds, at least one support-agglomerate having chromium immobilized thereto (e.g., spray dried silica/clay agglomerate), and optionally at least one organometallic compound in controlled amounts, and methods for preparing the same. The resulting catalyst system exhibits enhanced activity for polymerizing olefins and yields polymer products having very good morphology.
    Type: Grant
    Filed: April 10, 2002
    Date of Patent: September 20, 2005
    Assignee: W. R. Grace & Co.-Conn
    Inventors: Keng-Yu Shih, Dean Alexander Denton, Rimantas Glemza
  • Patent number: 6929736
    Abstract: Anionic clay compounds such as hydrotalcite-like compounds can be made by a process wherein a non-hydrotalcite-like compound (or a hydrotalcite-like compound) are heat treated and then hydrated to form hydrotalcite-like compounds having properties (e.g., increased hardness and/or density) that differ from those of hydrotalcite-like compounds made by prior art methods wherein non-hydrotalcite-like compounds (or hydrotalcite-like compounds) are not similarly heat treated and hydrated to form such hydrotalcite-like compounds.
    Type: Grant
    Filed: May 23, 2003
    Date of Patent: August 16, 2005
    Assignee: Intercat, Inc.
    Inventor: Albert A. Vierheilig
  • Patent number: 6930067
    Abstract: The present invention is directed to a process for preparing a catalyst which comprises combining catalyst components or precursors thereof in an aqueous medium to form a catalyst precursor mixture, feeding the mixture to a shaping apparatus, and shaping the mixture to form particles wherein just before the shaping step the mixture is destabilized. It was found that with this process catalysts can be prepared which have both a good attrition resistance and a high accessibility. The invention further relates to catalysts obtainable by this process.
    Type: Grant
    Filed: June 4, 2002
    Date of Patent: August 16, 2005
    Assignee: Akzo Nobel NV
    Inventors: Paul O'Connor, Edwin Mark Berends
  • Patent number: 6908544
    Abstract: The present invention relates to a cracking catalyst comprising layered clays and a process for cracking hydrocarbon oils using said catalyst. Said catalyst is prepared by the process comprising the following steps: mixing and slurrying an expandable clay, a modifier component, pseudo-boehmite and water for 0.1-10 h to obtain a slurry, aging the slurry at 50-85ยฐ C. for 0.1-10 h, then drying and forming the slurry to obtain a formed material, water washing and aging the solid, and finally drying and calcining the solid, and said modifier being one or more selected from the group consisting of hydroxyl polymers of silicon, aluminum, zirconium or titanium, and substances comprising one or more of said hydroxyl polymers.
    Type: Grant
    Filed: December 24, 2002
    Date of Patent: June 21, 2005
    Assignees: China Petroleum & Chemical Corporation, Research Institute of Petroleum Processing,
    Inventors: Zhiqing Yu, Zhijian Da, Zhenyu Chen, Enze Min, Jun Long, Caiying Li, Zhiqing Huang
  • Patent number: 6903040
    Abstract: The invention pertains to a continuous process for the conversion of inorganic solid starting particles which either are amorphous or possess a degree of order into inorganic solid product particles which (a) when the starting particles are amorphous, possess a degree of order, or (b) when the starting particles possess a degree of order, possess a different order, a different degree of order, or no order, which product particles are suitable for use in or as a catalyst, in or as a carrier, or in or as an adsorbent, in which process the starting particles are dispersed in a liquid thus forming a suspension. The suspension flows through at least two separate conversion vessels (3) which are connected in series and the suspension is agitated in each of these vessels (3). The invention furthermore relates to an apparatus suitable for carrying out the process according to the invention. This invention allows the processing of suspension with a high Solids to Liquid Ratio.
    Type: Grant
    Filed: May 8, 2002
    Date of Patent: June 7, 2005
    Assignee: Akzo Nobel NV
    Inventors: Dennis Stamires, Paul O'Connor, Erik Jeroen Laheij, Johannes Wilhelmus Maria Sonnemans
  • Patent number: 6881701
    Abstract: The present invention provides a coating composition for substrates. The coating composition of the present invention generally includes a silicate binder and a plurality of photocatalytic particles. The silicate binder functions as a bonding agent to establish the coating on the substrate. A plurality of photocatalyst particles are dispersed throughout the silicate binder. The particles are included in an amount that provides sufficient distribution of the particles in the resulting coating. The incorporation of the present invention onto substrates prevents algal growth on building materials utilizing the coated substrates.
    Type: Grant
    Filed: April 15, 2003
    Date of Patent: April 19, 2005
    Assignee: 3M Innovative Properties Company
    Inventor: Jeffry L. Jacobs
  • Patent number: 6858556
    Abstract: A process for the preparation of a stabilized dual zeolite catalyst-comprising two types of zeolites, a low silica molecular sieve and a stabilized high silica zeolite is disclosed. The catalyst is useful for cracking heavier hydrocarbons into lighter useful products.
    Type: Grant
    Filed: February 25, 2002
    Date of Patent: February 22, 2005
    Assignee: Indian Oil Corporation Limited
    Inventors: Mohan Prabhu Kuvettu, Sanjay Kumar Ray, Gopal Ravichandran, Venkatchalam Krishnan, Satyen Kumar Das, Satish Makhija, Sobhan Ghosh
  • Patent number: 6835788
    Abstract: The catalyst for polymerizing vinyl compounds according to the present invention comprises (A) a complex of Group 4 to 10 transition metal of the Periodic Table, (B) a clay, clay mineral or ion-exchangeable layered compound, and (C) at least one aluminoxy compound represented by Formula (1): wherein a plurality of R groups are each independently C1-10 hydrocarbon group and at least one of the R groups is a hydrocarbon group having 2 or more carbon atoms; and x is an integer of 2 or more. By using the Group 4 to 10 transition metal complex and the clay, clay mineral or ion-exchangeable layered compound in combination with the specific aluminoxy compound, vinyl polymers are produced at a high efficiency.
    Type: Grant
    Filed: August 20, 2002
    Date of Patent: December 28, 2004
    Assignee: Idemitsu Petrochemical Co., Ltd.
    Inventors: Haruhito Sato, Masami Watanabe, Masahiko Kuramoto
  • Publication number: 20040259720
    Abstract: The catalyst for polymerizing vinyl compounds according to the present invention comprises (A) a complex of Group 4 to 10 transition metal of the Periodic Table, (B) a clay, clay mineral or ion-exchangeable layered compound, and (C) at least one aluminoxy compound represented by Formula (1): 1
    Type: Application
    Filed: July 13, 2004
    Publication date: December 23, 2004
    Applicant: IDEMITSU PETROCHEMICAL CO., LTD.
    Inventors: Haruhito Sato, Masami Watanabe, Masahiko Kuramoto
  • Patent number: 6815389
    Abstract: An economical and environment-friendly process for the synthesis of anionic clays with carbonate and/or hydroxide anions as the charge-balancing interlayer species is disclosed. The process involves reacting a slurry comprising an aluminum source and a magnesium source, the aluminum source comprising two types of aluminum-containing compounds, preferably aluminum trihydrate and/or thermally treated calcined aluminum trihydrate. There is no necessity to wash or filter the product. It can be spray dried directly to form microspheres or can be extruded to form shaped bodies. The product can be combined with other ingredients in the manufacture of catalysts, absorbents, pharmaceuticals, cosmetics, detergents, and other commodity products.
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: November 9, 2004
    Assignee: Akzo Nobel NV
    Inventors: Dennis Stamires, Michael F. Brady, William Jones, Fathi Kooli
  • Patent number: 6800578
    Abstract: This patent describes economical and environment-friendly processes for the synthesis of anionic clays. It involves reacting a slurry comprising boehmite, which has been peptized with acid with a divalent metal source followed by addition of source of base. The slurry is then hydrothermally aged. There is no necessity to wash or filter the product and it can be spray dried directly to form microspheres, or can be extruded to form shaped bodies. The product can be combined with other ingredients in the manufacture of catalysts, absorbents, pharmaceuticals, cosmetics, detergents, polymeric nanocomposites and other commodity products that contain anionic clays.
    Type: Grant
    Filed: October 15, 2002
    Date of Patent: October 5, 2004
    Assignee: Akzo Nobel NV
    Inventors: Dennis Stamires, Paul O'Connor, William Jones, Michael Brady
  • Patent number: 6794325
    Abstract: The invention is a base-modified clay that selectively catalyzes the formation of a glycol monoester from an aldehyde. The base-modified clay comprises a clay having secluded conjugate base sites and exchangeable interstitial cationic spaces. In the base-modified clay, the interstitial hydroxyl groups have been converted to oxide sites, at least one structural hydroxyl group has been converted to an oxide site. The base-modified clay contains sufficient conjugate base cations to balance charge of said oxide groups. Processes for preparing the base-modified clay are described. The invention also provides a process for preparing a glycol monoester. This process includes heating in a reaction vessel an aldehyde and a catalytic amount of the base-modified clay under conditions sufficient to produce a glycol monoester.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: September 21, 2004
    Assignee: Eastman Chemical Company
    Inventors: William A. Beavers, Robert D. Culp
  • Patent number: 6787499
    Abstract: A catalyst which is able to express a high oligomerizing activity of ethylene and a method for the production of &agr;-olefin where ethylene is oligomerized using said catalyst are provided. The present invention relates to a catalyst for the production of &agr;-olefin obtained by contacting (a) clay, clay mineral or ion-exchange layer compound with (b-1) a transition metal complex of Groups 4 to 6 of the Periodic Table and also relates to a method for the production of &agr;-olefin by oligomerization of ethylene using said catalyst. The present invention further relates to a catalyst for the production of &agr;-olefin obtained by contacting (a) clay, clay mineral or ion-exchange layer compound with (b-2) a transition metal complex of Groups 8 to 10 of the Periodic Table and also relates to a method of the production of &agr;-olefin by oligomerization of ethylene using said catalyst.
    Type: Grant
    Filed: February 21, 2003
    Date of Patent: September 7, 2004
    Assignee: Idemitsu Petrochemical Co., Ltd.
    Inventors: Shinji Tanaka, Yasushi Shiraki, Takao Tamura, Masahiko Kuramoto, Haruhito Sato, Masami Watanabe
  • Patent number: 6762144
    Abstract: A process for the production of a bleaching clay product which includes the steps of selecting a naturally occurring, acidic hormite clay product, cleaning and crushing the hormite clay products to form clay clumps, selecting a naturally occurring less acidic, clay product which contains a higher level of montmorillonite than does the acidic hormite clay, aging the crushed hormite clay for about one (1) month or more, blending the aged hormite clay with the less acidic clay product either before or after aging and activating the clay with small quantities of acid. An acceptable bleaching clay product can be produced without activation with acid.
    Type: Grant
    Filed: April 8, 2003
    Date of Patent: July 13, 2004
    Assignee: Sud-Chemie Adsorbents, Inc.
    Inventors: Jorge Bello, Christian Farby
  • Patent number: 6759359
    Abstract: A process for the production of a bleaching clay product which includes the steps of selecting a naturally occurring hormite clay product, cleaning and crushing the clay product to form clay clumps less than 6 in. in diameter, and aging the crushed hormite clay for at least about one (1) month. Acceptable bleaching clay products can also be produced by the addition of extremely small quantities of a concentrated acid to the aged hormite clay.
    Type: Grant
    Filed: November 21, 2002
    Date of Patent: July 6, 2004
    Assignee: Sud-Chemie Inc.
    Inventors: David Hill, Christian P. Fabry, Jorge Bello
  • Patent number: RE39553
    Abstract: The present invention relates to sulfur tolerant catalyst composites useful for reducing contaminants in exhaust gas streams, especially gaseous streams containing sulfur oxide contaminants. More specifically, the present invention is concerned with improved NOx trap catalysts for use in diesel engines as well as lean burn gasoline engines. The sulfur tolerant NOx trap catalyst composites comprise a platinum component, a support, a NOx sorbent component, and a spinel material prepared by calcining as anionic clay material represented by the formula MmNn(OH)(2m+2n)Aa.bH2O, wherein the formula is defined herein. The sulfur tolerant NOx trap catalyst composites are highly effective with a sulfur containing fuel by trapping sulfur oxide contaminants which tend to poison conventional NOx trap catalysts used to abate other pollutants in the stream.
    Type: Grant
    Filed: June 12, 2003
    Date of Patent: April 10, 2007
    Assignee: Englhard Corporation
    Inventor: Yuejin Li