Patents Assigned to Engelhard Corporation
  • Patent number: 7895825
    Abstract: Disclosed herein is a method and apparatus for reducing exhaust gases in an initial cold start period, in which a main catalyst unit is connected to an engine through an exhaust pipe, including the steps of receiving signals for stopping engine operation from an engine, and removing engine exhaust gases remaining in an exhaust pipe located at an inlet of a main catalyst unit.
    Type: Grant
    Filed: April 5, 2007
    Date of Patent: March 1, 2011
    Assignee: Heesung Engelhard Corporation
    Inventors: Hee Chun Kang, Tae-Woo Lee, Eun-Seok Kim, Hyun-Sik Han, Tae Hun Yeon
  • Patent number: 7740818
    Abstract: Disclosed herein is a transition metal-substituted hydrotalcite catalyst for removing nitrogen oxides using a storage-reduction method, in which a molar ratio of transition metal to magnesium is 0.2 or less, and a method of manufacturing a transition metal-substituted hydrotalcite catalyst for removing nitrogen oxides using a storage-reduction method, including the steps of preparing a hydrotalcite synthesis solution including transition metal precursors such that the molar ratio of transition metal to magnesium is 0.2 or less, and preferably 0.001 to 0.2; aging the synthesis solution; and hydrothermally treating the synthesis solution.
    Type: Grant
    Filed: April 17, 2009
    Date of Patent: June 22, 2010
    Assignee: Heesung Engelhard Corporation
    Inventors: Hyun-Sik Han, Young-San Yoo, Gon Seo, Gi-Won Park
  • Patent number: 7678735
    Abstract: Ammoxidation catalysts have been found effective for the reduction of emissions of NOx and NOx precursors during FCC catalyst regeneration.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: March 16, 2010
    Assignee: Engelhard Corporation
    Inventor: David Matheson Stockwell
  • Patent number: 7361626
    Abstract: The present invention relates to a Catalyst comprising a, preferably oxidic, core material, a shell of zinc oxide around said core material, and a catalytically active material in or on the shell, based on one or more of the metals cobalt, iron, ruthenium and/or nickel, preferably a Fischer-Tropsch catalyst, to the preparation of such a catalyst and the use thereof in GTL processes.
    Type: Grant
    Filed: April 25, 2005
    Date of Patent: April 22, 2008
    Assignee: Engelhard Corporation
    Inventors: Cornelis Roeland Baijense, Geoffrey Johnson, Ahmad Moini
  • Patent number: 7351393
    Abstract: This invention is directed to star shaped alumina extrudates with a pore volume in the pores of a diameter over 1000 nm, as determined by mercury porosity, of at least 0.05 ml/g and a total pore volume between 0.5-0.75 ml/g. The extrudates have a length of between 2-8 mm, a length to diameter ratio of between 1-3, a side crushing strength of at least 50 N and a bulk crushing strength of at least 1 MPa.
    Type: Grant
    Filed: November 4, 1999
    Date of Patent: April 1, 2008
    Assignee: Engelhard Corporation
    Inventors: Cornelis Roeland Bayense, Durk Ykema
  • Patent number: 7344695
    Abstract: A novel method of forming ZSM-5 comprises reacting calcined kaolin microspheres with silicate and a seed solution used for forming zeolite Y under conditions of pH, temperature, and time to yield ZSM-5 crystals formed in-situ on said calcined kaolin microspheres. The reaction medium does not contain any organic templates or ZSM-5 seeding crystals.
    Type: Grant
    Filed: March 14, 2005
    Date of Patent: March 18, 2008
    Assignee: Engelhard Corporation
    Inventors: Mingting Xu, John Macaoay
  • Patent number: 7335695
    Abstract: A laminar pigment which has hydrolyzed silane coupling agent treated surface is used as a pigment for a powder coating composition. By combining the pigment with a powdery film-forming polymer, a film-forming composition, which can be applied by electrostatic coating is produced. With the addition of leveling agent to the silane treated products, the spray properties of effect pigments are improved. The products of this invention are useful in all types of automotive and industrial paint applications.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: February 26, 2008
    Assignee: Engelhard Corporation
    Inventors: Joseph Bagala, Thomas Chirayil, William Sullivan
  • Publication number: 20080011646
    Abstract: A method of reforming a sulfur containing hydrocarbon involves contacting the sulfur containing hydrocarbon with a sulfur tolerant catalyst containing a sulfur tolerant precious metal and a non-sulfating carrier so that the sulfur tolerant catalyst adsorbs at least a portion of sulfur in the sulfur containing hydrocarbon and a low sulfur reformate is collected, and contacting the sulfur tolerant catalyst with an oxygen containing gas to convert at least a portion of adsorbed sulfur to a sulfur oxide that is desorbed from the sulfur tolerant catalyst.
    Type: Application
    Filed: July 11, 2006
    Publication date: January 17, 2008
    Applicant: ENGELHARD CORPORATION
    Inventors: Thomas Giroux, Earl Waterman, Robert Joseph Farrauto
  • Publication number: 20070295936
    Abstract: Disclosed is a stabilized chlorine dioxide generating composition containing an oxy-chlorine salt, an acid source, optionally a free halogen source, and an endothermic agent. The endothermic agent neutralizes heat evolved by exothermic reaction of the oxy-chlorine salt by the endothermic reaction of the endothermic agent. Since the endothermic reaction eliminates and/or mitigates propagation of the exothermic reaction of the oxy-chlorine salt from a localized area through the total mass of the material, the chlorine dioxide generating composition is thereby stabilized during making, storing, or shipping the composition.
    Type: Application
    Filed: June 21, 2006
    Publication date: December 27, 2007
    Applicant: ENGELHARD CORPORATION
    Inventors: John Byrne, Barry Speronello
  • Publication number: 20070258882
    Abstract: An alcohol steam reforming catalyst for generating hydrogen contains palladium, yttrium, and at least one of cerium and a metal oxide. The catalyst displays both an improved alcohol conversion rate and improved carbon dioxide selectivity. Methods of making and using the alcohol steam reforming catalyst are described.
    Type: Application
    Filed: May 5, 2006
    Publication date: November 8, 2007
    Applicant: Engelhard Corporation
    Inventors: Christopher Castellano, Ye Liu, Ahmad Moini, Gerald Koermer, Robert Farrauto
  • Patent number: 7285695
    Abstract: The invention is directed to a process for the hydrogenation of hydrocarbon resins in the presence of a precious metal catalyst, wherein the hydrogenation is performed in the additional presence of at least one metal oxide, capable of reacting with sulfide and/or halogen.
    Type: Grant
    Filed: November 1, 2000
    Date of Patent: October 23, 2007
    Assignee: Engelhard Corporation
    Inventors: Bernard Hendrik Reesink, Willem Dijkstra
  • Patent number: 7279037
    Abstract: Disclosed are methods of processing Chinese kaolin involving providing Chinese kaolin having a desired powder size, delaminating the Chinese kaolin, pulverizing the delaminated Chinese kaolin at least two times, and heating the at least twice pulverized Chinese kaolin. Also disclosed are systems for automated processing of Chinese kaolin containing a pulverizer for pulverizing Chinese kaolin, a tester for testing and generating data of at least one parameter of the Chinese kaolin or at least one parameter of the pulverizer, a controller, operatively coupled to the pulverizer and the tester, for controlling operation of the pulverizer based on data received from the tester.
    Type: Grant
    Filed: February 12, 2004
    Date of Patent: October 9, 2007
    Assignee: Engelhard Corporation
    Inventors: Saad N. Nemeh, Danny Williams, Francis Yin, Randall P. Brown, Ernie Finch
  • Patent number: 7278410
    Abstract: The present invention is directed to the use of an improved hydrocarbon adsorbent coating for the treatment of exhaust emissions from a motor vehicle. More specifically, the hydrocarbon adsorbent of the present invention can be coated to any surface area of an exhaust gas recirculation system to trap hydrocarbon vapors before they can be released to the atmosphere.
    Type: Grant
    Filed: November 17, 2005
    Date of Patent: October 9, 2007
    Assignee: Engelhard Corporation
    Inventors: Jeffrey Barmont Hoke, Mark Thomas Buelow, John Joseph Kauffman
  • Patent number: 7276212
    Abstract: Provided is a base metal undercoat containing catalyst and an exhaust article containing the catalyst. The catalyst contains a base metal undercoat with an oxygen storage component, and at least one catalytic layer. Also provided are methods for preparing the catalyst and methods for monitoring the oxygen storage capacity of an exhaust article containing the catalyst.
    Type: Grant
    Filed: October 1, 2001
    Date of Patent: October 2, 2007
    Assignee: Engelhard Corporation
    Inventors: Zhicheng Hu, Patrick L. Burk, Shau-Lin F. Chen, Harold N. Rabinowitz, Christopher M. Minnella, Aaron N. Israel
  • 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
  • Publication number: 20070199481
    Abstract: The present invention is directed to synthetic cationic organo-stevensite clay material, in the use thereof in nanocomposites and to the production thereof.
    Type: Application
    Filed: September 14, 2004
    Publication date: August 30, 2007
    Applicant: Engelhard Corporation
    Inventor: Jules Caspar Roelofs
  • Publication number: 20070102324
    Abstract: The invention is directed to a process for the removal of contaminating sulfur compounds, more in particular thiophenic sulfur compounds, from hydrocarbon feedstocks, said process comprising contacting the feedstock in the presence of hydrogen with a sulfided nickel adsorbent, of which adsorbent the rate constant for tetralin hydrogenation activity at 150┬░ C. is less than 0.01 l/s.g cat and wherein in said adsorbent part of the nickel is present in the metallic form.
    Type: Application
    Filed: September 15, 2004
    Publication date: May 10, 2007
    Applicant: Engelhard Corporation
    Inventors: Bernard Reesink, Nico Gasteren
  • Patent number: 7208128
    Abstract: A catalyst for the oxidation of volatile organic compounds and carbon monoxide comprising manganese and alumina, such catalyst having been impregnated with a phosphorus compound. The presence of the phosphorus compound results in a significant oxidative conversion of both the volatile organic compounds and the carbon monoxide. The catalyst is especially useful for treating gaseous streams that emanate from industrial sources, such as wood pulp manufacturing plants. The manganese portion of the catalyst is preferably comprised of manganese compounds comprising a defect non-stoichiometric manganese oxide of the type ?-Mn3O4+x, wherein x has the value of 0.1?x?0.25 in respect to about 80 to about 95% of all manganese atoms, and manganese aluminate in respect to the balance of the manganese atoms. The alumina portion of the catalyst is preferably comprised of high temperature forms of alumina of the type comprising ?-Al2O3 and (?+?+?)-Al2O3.
    Type: Grant
    Filed: January 6, 2004
    Date of Patent: April 24, 2007
    Assignee: Engelhard Corporation
    Inventors: Howard John Furbeck, Pascaline Harrison Tran, Gerard Diomede Lapadula
  • Publication number: 20070081919
    Abstract: The invention pertains to a device for generating aqueous chlorine dioxide solutions when the device is contacted with liquid water. The device comprises an alkali metal or alkaline earth metal chlorite, e.g., sodium chlorite, and a chemical reagent comprising an acid or a material capable of releasing an acid upon exposure to liquid water, e.g., sodium bisulfate. The chlorite and the reagent are either combined as a mixture or are disposed as separate components adhered to the surface of one or more substrates. Upon exposure to liquid water, the chlorite and the reagent produce boundary layers. The chlorite and the reagent are disposed upon, and adhered to, the surface(s) of the substrates in a manner such that upon exposure to liquid water, the chlorite boundary layer comes into contact with the reagent boundary layer to thereby produce an aqueous chlorine dioxide solution.
    Type: Application
    Filed: October 19, 2006
    Publication date: April 12, 2007
    Applicant: ENGELHARD CORPORATION
    Inventors: Gerald Koermer, Barry Speronello, Linda Hratko
  • Patent number: 7196034
    Abstract: The invention is directed to a catalyst suitable for the hydrogenation of hydrocarbon resins, comprising a supported nickel on silica and alumina catalyst, said catalyst having a nickel content of 45 to 85 wt. %, a silicon content, calculated as SiO2, of 14 to 45 wt. %, an aluminium content, calculated as Al2O3, of 1 to 15 wt. % an iron content, calculated as Fe, 0.25 to 4 wt. %, all percentages having been calculated on the basis of the reduced catalyst, and which catalyst has a volume of pores between 2 and 60 nm, as defined herein, of at least 0.35 ml/g of catalyst.
    Type: Grant
    Filed: November 17, 2000
    Date of Patent: March 27, 2007
    Assignee: Engelhard Corporation
    Inventor: Lucas Laurentius Kramer