Patents Assigned to Engelhard Corporation
  • Patent number: 7101473
    Abstract: An additive to enhance the activity of an FCC catalyst containing zeolite and matrix components comprises zeolite microspheres having a novel morphology comprising a macroporous matrix and crystallized zeolite freely coating the walls of the pores of the matrix. The additives formed from microspheres containing a metakaolin and kaolin calcined through its exotherm, the latter calcined kaolin being derived from a kaolin having a high pore volume. Kaolin having a high pore volume can be a pulverized ultrafine kaolin or a kaolin which has been pulverized to have an incipient slurry point less than 57% solids.
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: September 5, 2006
    Assignee: Engelhard Corporation
    Inventor: Michael Thomas Hurley
  • Patent number: 7083829
    Abstract: A method and apparatus for treating the atmosphere comprising moving a vehicle through the atmosphere, the vehicle having at least one atmosphere contacting surface and a pollutant treating composition located on said surface. A specific embodiment comprises coating a motor vehicle radiator with pollutant treating catalyst.
    Type: Grant
    Filed: October 12, 2004
    Date of Patent: August 1, 2006
    Assignee: Engelhard Corporation
    Inventors: Jeffrey B. Hoke, Fred M. Allen, Patrick W. Blosser, Zhicheng Hu, Ronald M. Heck
  • Patent number: 7080505
    Abstract: A vehicular atmosphere cleansing system utilizes a regenerative wheel having flow channels extending through the wheel coated with an adsorbant. An atmosphere stream passes through a first position dependent portion of the wheel where VOC's including HC's are adsorbed while a heated atmosphere stream passes through a second position dependent regenerative portion of the wheel whereat VOC's are desorbed. The adsorbant is activated carbon having particles of micropore size adhered to the substrate by a silicone binder producing high adsorption efficiencies while withstanding relatively high regenerative heat temperatures resulting from exhaust gas sensible heat. A hydrocarbon senses HC in the desorbed heated atmosphere stream to rotatively and sequentially index pie shaped, segmented portions of the wheel into the wheel's regenerative region while also functioning as the main component of an OBD device for the system.
    Type: Grant
    Filed: July 8, 2003
    Date of Patent: July 25, 2006
    Assignee: Engelhard Corporation
    Inventors: Gerald S. Koermer, Jeffrey B. Hoke, Ronald M. Heck, Terence C. Poles, Edward T. Wolynic
  • Patent number: 7078004
    Abstract: The present invention relates to a method and article for treating a diesel engine exhaust stream. The stream is contacted with an upstream catalytic composition having a cerium component and/or a zeolite component to reduce the quantity and amount of the particulate matter in the exhaust stream. The stream passes from the upstream catalytic composition to a particulate filter located downstream from the upstream catalytic composition.
    Type: Grant
    Filed: January 10, 2003
    Date of Patent: July 18, 2006
    Assignee: Engelhard Corporation
    Inventors: Kenneth E. Voss, Joseph C. Dettling, Stanley Roth, Ramesh Kakwani, Yiu Kwan Lui, Alexander Gorel, Gary W. Rice
  • Patent number: 7074375
    Abstract: A hydrocarbon gas such as methane and LPG is desulfurized in the presence of oxygen and an oxidation catalyst to convert sulfur compounds in the gas to sulfur oxides. The sulfur oxides are then trapped downstream of the oxidation by an adsorbent. The amount of oxygen added to the hydrocarbon gas to promote oxidation is such that the sulfur compounds are selectively oxidized and the oxidation of the hydrocarbon gas is minimized to reduce hydrogen formation.
    Type: Grant
    Filed: December 3, 2002
    Date of Patent: July 11, 2006
    Assignee: Engelhard Corporation
    Inventors: Jordan K. Lampert, Lawrence Shore, Robert J. Farrauto, Shinn Hwang
  • Patent number: 7055311
    Abstract: An NOx emission system for diesel powered vehicles has a “Y” exhaust system with an NOx adsorber catalyst in each leg and an oxidation catalyst in the combined leg. One bank of cylinders sends exhaust gases to one of the “Y” legs while a second bank of cylinders send exhaust gases to the other “Y” leg. Composition of the exhaust gases in each leg is independently controlled by the engine's ECU so that exhaust gases in one leg are rich for regenerating the NOx adsorber catalyst in that leg while exhaust gas composition in the other leg is lean so that the combined gas stream is always lean and reductant slip is oxidized in the oxidation catalyst.
    Type: Grant
    Filed: August 31, 2002
    Date of Patent: June 6, 2006
    Assignee: Engelhard Corporation
    Inventors: Tilman Wolfram Beutel, John Lawrence Calabrese
  • Patent number: 7045056
    Abstract: A composition for controlling CO and NOx emissions during FCC processes comprises (i) acidic oxide support, (ii) cerium oxide, (iii) lanthanide oxide other than ceria such as praseodymium oxide (iv), optionally, oxide of a metal from Groups Ib and IIb such as copper, silver and zinc and (v) precious metal such as Pt and Pd.
    Type: Grant
    Filed: October 10, 2002
    Date of Patent: May 16, 2006
    Assignee: Engelhard Corporation
    Inventors: Chandrasbekhar Pandurang Kelkar, Yuejin Li, Rostam J. Madon, Marius Vaarkamp
  • Patent number: 7045007
    Abstract: An effect pigment is constituted by coated laminar platelets in which the platelets are a mixture of different platelet materials, one of which is platy glass or platy aluminum oxide, and in which the pigment exhibits visual homogeneity.
    Type: Grant
    Filed: December 31, 2002
    Date of Patent: May 16, 2006
    Assignee: Engelhard Corporation
    Inventor: Frank Bagala, Sr.
  • Patent number: 7045485
    Abstract: A composition for controlling NOx emissions during FCC processes comprises (i) an acidic oxide support, (ii) cerium oxide, (iii) a lanthanide oxide other than ceria such as praseodymium oxide, and (iv), optionally, an oxide of a metal from Groups Ib and IIb such as copper, silver and zinc.
    Type: Grant
    Filed: January 13, 2004
    Date of Patent: May 16, 2006
    Assignee: Engelhard Corporation
    Inventors: Chandrashekhar Pandurang Kelkar, David Stockwell, Samuel Tauster
  • Publication number: 20060100452
    Abstract: The present invention relates to a catalyst nickel, silica, alumina and magnesium, wherein the nickel to magnesium atomic ratio is 5-75. In particular the present invention relates to a catalyst comprising nickel, silica, alumina and magnesium, wherein the nickel to silicium atomic ratio (Ni/Si) is 2 to 30 the nickel to aluminum atomic ratio (Ni/Al) is 9 to 40 and the nickel to magnesium atomic ratio (Ni/Mg) is 5-75. The invention further relates to a method for preparing such a catalyst. The invention further relates to a process for hydrogenating unsaturated organic compounds.
    Type: Application
    Filed: October 17, 2003
    Publication date: May 11, 2006
    Applicant: Engelhard Corporation
    Inventors: Pieter Berben, Tjalling Rekker
  • Patent number: 7041263
    Abstract: The present invention relates to a composite of cerium, zirconium and samarium components, a catalyst composition containing such composite and the use of the catalyst composition for the treatment of a gas stream to reduce contaminants contained therein. The catalyst composition has the capability of substantially simultaneously catalyzing the oxidation of hydrocarbons and carbon monoxide and the reduction of nitrogen oxides.
    Type: Grant
    Filed: November 15, 2002
    Date of Patent: May 9, 2006
    Assignee: Engelhard Corporation
    Inventor: Shiang Sung
  • Patent number: 7041421
    Abstract: Disclosed is a red pigment compound containing a pigment represented by Formula I: having a certain Hue Angle and Apparent Strength. Also disclosed is a method of making a red pigment composition. Further disclosures relate to coating compositions, ink compositions, plastic compositions, electrostatic toner compositions, powder coating compositions, paint compositions, and paper compositions containing the red pigment represented by Formula I.
    Type: Grant
    Filed: September 8, 2003
    Date of Patent: May 9, 2006
    Assignee: Engelhard Corporation
    Inventor: Amrit P. Bindra
  • Patent number: 7037875
    Abstract: A support for a catalyst for controlling vehicular exhaust emissions comprising a high surface area refractory metal oxide, e.g., gamma-alumina, having a monomolecular layer of a second oxide selected from the group consisting of titanium dioxide, cerium dioxide and zirconium dioxide. Typically, the monomolecular layer will have a thickness of less than about 10 angstroms. The support may be converted into a vehicular exhaust emission control catalyst by depositing the support on a substrate such as cordierite depositing a precious metal component such as platinum on at least part of the monomolecular layer. Preferably, the catalyst will also contain at least one NOx storage component deposited on at least part of the monomolecular layer. Catalysts prepared using the catalyst supports of the invention exhibit outstanding thermal stability and resistance to sulfur poisoning.
    Type: Grant
    Filed: April 4, 2003
    Date of Patent: May 2, 2006
    Assignee: Engelhard Corporation
    Inventors: Zhicheng Hu, Knut Wasserman, Patrick L. Burk, Youchang Xie, Wei Lin
  • Patent number: 7022646
    Abstract: A layered catalyst composite for controlling vehicular exhaust emissions is disclosed. The composite comprises a substrate such as cordierite, at least one bottom layer deposited on the substrate containing a precious metal component such as platinum and at least one NOx storage component present in the amount of about 0.3 to about 1.5 g/in3, and at least one top layer deposited on the bottom layer containing a precious metal component such as platinum and at least one NOx storage component present in the amount of about 0.0 to less than about 0.3 g/in3.
    Type: Grant
    Filed: January 31, 2003
    Date of Patent: April 4, 2006
    Assignee: Engelhard Corporation
    Inventor: Yuejin Li
  • Patent number: 7022644
    Abstract: Hydrogen sulfide formation is suppressed by a three-way conversion catalyst having an underlayer and a topcoat overlying the under layer. The under layer is prepared by dispersing a Group IIa metal oxide such as an oxide of magnesium, calcium, barium or strontium on a carrier such as a refractory metal oxide monolith. A topcoat overlying the undercoat is comprised of a three-way conversion catalyst material such as a platinum-group metal catalytic component, e.g., platinum, palladium, rhodium or mixtures thereof.
    Type: Grant
    Filed: February 20, 2002
    Date of Patent: April 4, 2006
    Assignee: Engelhard Corporation
    Inventors: John S. Foong, Harold N. Rabinowitz
  • Patent number: 7018643
    Abstract: In one embodiment, the present invention relates to a pesticide delivery system, containing a continuous film having a thickness from about 1 ?m to about 1,000 ?m and noncontinuous areas having sizes less than about 100 ?m, the continuous film containing a particulate material wherein at least 90% by weight of the particulate material has a particle size of about 10 microns or less, and a pest control agent at least partially coating the particulate material.
    Type: Grant
    Filed: November 22, 2002
    Date of Patent: March 28, 2006
    Assignees: Engelhard Corporation, The United States of America as represented by the Secretary of Agriculture
    Inventors: Gary J. Puterka, David Michael Glenn, Dennis G. Sekutowski
  • Patent number: 7014700
    Abstract: Highly reflective interference effect pigments with dark absorption color are obtained by reducing platy titanium dioxide. The present effect pigments may be used in cosmetics, plastics, inks, and coatings including solvent and water borne automotive paint systems.
    Type: Grant
    Filed: January 13, 2004
    Date of Patent: March 21, 2006
    Assignee: Engelhard Corporation
    Inventors: Carmine V. DeLuca, Jr., William Howard
  • Patent number: 7012038
    Abstract: One aspect of the invention relates to a dehydrogenation catalyst composite containing alumina, chromium oxide, lithium oxide, and sodium oxide. The invention also relates to methods of making the dehydrogenation catalyst composite. Another aspect of the invention relates to method of dehydrogenating a dehydrogenatable hydrocarbon involving contacting the dehydrogenatable hydrocarbon with a dehydrogenation catalyst composite containing alumina, chromium oxide, lithium oxide, and sodium oxide to provide a dehydrogenated hydrocarbon, such as an olefin.
    Type: Grant
    Filed: June 12, 2002
    Date of Patent: March 14, 2006
    Assignee: Engelhard Corporation
    Inventors: Saeed Alerasool, Harold E. Manning
  • Patent number: 6999167
    Abstract: An apparatus and a method for objectively ascertaining a color match between a selected standard color and the color exhibited by an interference effect pigment during processing thereof and terminating the process upon achieving a match. The invention provides a spectrophotometer attached to a flow cell to monitor the color of a platy effect pigment to monitor pigment color and ascertain completion of the coating reaction process involved in interference pigment production.
    Type: Grant
    Filed: February 12, 2001
    Date of Patent: February 14, 2006
    Assignee: Engelhard Corporation
    Inventors: James B. Carroll, Jr., Charles Willard
  • Patent number: 6992037
    Abstract: One aspect of the invention relates to catalyst composite containing a metal catalyst and a specifically defined carbon support containing a carbonaceous material. For example, the carbon support may have a total pore surface area of about 800 m2/g or more and about 2,000 m2/g or less where about 20% or less of the total pore surface area is micro pore surface area. Alternatively the carbon support may have a total pore volume of at least about 0.75 cc/g where about 15% or less of the total pore volume is micro pore volume. In yet another aspect of the invention, the carbon support may have a phosphorus content of about 0.75% by weight or less. In still yet another aspect of the invention, a methods of making and using the catalyst composite are disclosed.
    Type: Grant
    Filed: September 17, 2001
    Date of Patent: January 31, 2006
    Assignee: Engelhard Corporation
    Inventors: Jian Ping Chen, Charles R. Penquite, Deepak S. Thakur