Patents Assigned to Kerr-McGee Corporation
  • Patent number: 6413016
    Abstract: Methods of extracting liquid hydrocarbon contaminants from underground zones are provided. The methods are basically comprised of the steps of introducing a hot purge gas into an underground zone containing a pool of liquid hydrocarbon contaminants whereby light liquid hydrocarbons in and around the pool are evaporated and dense liquid hydrocarbons in the pool are evaporated to some extent, charred, auto-ignited and combusted, and removing the hot purge gas, the evaporated light liquid hydrocarbons and combustion gases from the combustion of the dense liquid hydrocarbons in the zone.
    Type: Grant
    Filed: August 17, 2000
    Date of Patent: July 2, 2002
    Assignee: Kerr-McGee Corporation
    Inventors: Stephen Richard Nelson, Gregory Robert Feegle
  • Patent number: 6296060
    Abstract: Methods of placing off-shore wells on production comprising the steps of separating a gas from oil or oil and water produced by the well, introducing the gas into the seawater surrounding the well at a depth where the temperature and pressure of the seawater are such that solid gas hydrates are formed when the gas is mixed with the seawater, mixing the gas with the seawater whereby the gas is converted to solid gas hydrates and depositing the solid gas hydrates on the sea floor.
    Type: Grant
    Filed: January 10, 2000
    Date of Patent: October 2, 2001
    Assignee: Kerr-McGee Corporation
    Inventor: Kurt P. McCaslin
  • Patent number: 6004519
    Abstract: The recovery of aluminum chloride from deactivated alkylation catalyst complexes by hydrogenation using hydrogen gas and an aluminum catalyst is disclosed. Using aluminum to catalyze the hydrogenation allows the reaction to proceed at a lower temperature and pressure while reducing the amount of hydrogen chloride present in the reactor thus reducing the corrosiveness and cost of the aluminum chloride recovery. Methods for batch, batchwise continuous, and continuous aluminum chloride recovery are disclosed.
    Type: Grant
    Filed: January 2, 1997
    Date of Patent: December 21, 1999
    Assignee: Kerr-McGee Corporation
    Inventors: Elliott P. Doane, Jim Yuen-Fong Low, Larry G. Sherman, William A. Yuill
  • Patent number: 5733365
    Abstract: A process for preparing a low-dusting, free-flowing pigment which has not been subjected to any micronizing treatment comprising the steps of providing an inorganic pigment material; providing a source of water; forming a fine, well dispersed slurry of the pigment and water; milling the slurry; depositing a treating agent having the formula ROOCCHSO.sub.3 MCH.sub.2 COOR' wherein R and R' are monovalent alkyl radicals having from about 2 to about 20 carbon atoms, and M is a metallic monovalent cation on the slurried milled pigment; and drying the pigment material having a treating agent deposited thereon. The invention also provides the free-flowing pigments produced by this process.
    Type: Grant
    Filed: February 18, 1997
    Date of Patent: March 31, 1998
    Assignee: Kerr-McGee Corporation
    Inventors: John E. Halko, Phillip M. Story, James W. Kauffman, Kelly A. Green
  • Patent number: 5651864
    Abstract: A method for synthesizing a particulate product including electrostatically charging a fuel and/or oxidizer and/or ionizable inert gas present during the synthesis is provided. The method can include a step of collecting the particulate product which exploits the charged nature of the particulate reaction product.
    Type: Grant
    Filed: February 27, 1996
    Date of Patent: July 29, 1997
    Assignee: Kerr-McGee Corporation
    Inventor: Phillip M. Story
  • Patent number: 5605773
    Abstract: A method for manufacturing Li.sub.2 M.sub.b Mn.sub.2-b O.sub.4 comprising the steps of providing LiM.sub.b Mn.sub.2-b O.sub.4 ; providing a source of lithium; dissolving lithium from the lithium source in a liquid medium in which lithium generates solvated electrons or the reduced form of an electron-transfer catalyst; and contacting the LiM.sub.b Mn.sub.2-b O.sub.4 with the liquid medium containing the dissolved lithium and the solvated electrons or the reduced form of the electron-transfer catalyst, wherein M is selected from the group Al, Ti, V, Cr, Fe, Co, Ni, and Cu.
    Type: Grant
    Filed: December 6, 1995
    Date of Patent: February 25, 1997
    Assignee: Kerr-McGee Corporation
    Inventor: Paul C. Ellgen
  • Patent number: 5597515
    Abstract: A process for producing a conductive, fluorine-doped titanium dioxide product which is doped throughout, said process comprising the steps of: (a) reacting the precursors in a system to form fluorine-doped TiO.sub.2, said precursors consisting essentially of a titanium alkoxide and a fluorine source; (b) reducing the fluorine-doped titanium dioxide product at a temperature sufficient to form said conductive, fluorine-doped titanium dioxide product; and (c) recovering the reduced product.
    Type: Grant
    Filed: September 27, 1995
    Date of Patent: January 28, 1997
    Assignee: Kerr-McGee Corporation
    Inventors: James W. Kauffman, Bruce R. Palmer
  • Patent number: 5597664
    Abstract: A method for manufacturing Li.sub.2 Mn.sub.2 O.sub.4 which comprises the steps of providing LiMn.sub.2 O.sub.4 ; providing a lithium salt; forming a solution or suspension of the LiMn.sub.2 O.sub.4 and lithium salt in a liquid medium; and adding a reducing agent to the solution or suspension.
    Type: Grant
    Filed: September 7, 1995
    Date of Patent: January 28, 1997
    Assignee: Kerr-McGee Corporation
    Inventor: Paul C. Ellgen
  • Patent number: 5573744
    Abstract: A method and apparatus for producing TiO.sub.2 by reacting O.sub.2 and TiCl.sub.4 in a reactor tube wherein pressure fluctuations in the flow of fluids through the reactor tube are sensed and output signals are generated proportional to the sensed pressure fluctuations. The flow of at least one of the TiCl.sub.4 or O.sub.2 is then varied through the reactor tube in response to predetermined pressure fluctuations so as to increase the efficiency of the reaction between TiCl.sub.4 and the O.sub.2. The efficiency of the reaction between O.sub.2 and TiCl.sub.4 in the reactor tube is achieved by a control apparatus operably connected to the reactor assembly which is capable of monitoring pressure fluctuations in TCl.sub.4 and O.sub.2 through the reactor assembly so that the flow of at least one of the TiCl.sub.4 or O.sub.2 can be varied in response to predetermined pressure fluctuations. The control apparatus includes a sensor assembly, a signal conditioning unit and a signal processing unit.
    Type: Grant
    Filed: February 17, 1995
    Date of Patent: November 12, 1996
    Assignee: Kerr-McGee Corporation
    Inventors: Vernon D. Gebben, Walter D. Bruce
  • Patent number: 5571855
    Abstract: Improved methods and polymer compositions are provided whereby ultraviolet radiation degradation of substrates formed of the compositions is attenuated.In accordance with the invention, ultraviolet scattering and absorbing particles having a particle size in the range of from about 0.001 micrometer to about 0.20 micrometer in diameter are dispersed in at least a surface layer of a polymer substrate.
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: November 5, 1996
    Assignee: Kerr-McGee Corporation
    Inventors: Bruce R. Palmer, James W. Kauffman, Penelope Stamatakis
  • Patent number: 5567754
    Abstract: Thermoplastic concentrates comprising inorganic pigments, such as titanium dioxide, treated with a partial ester polyol and unsaturated monocarboxylic acid treating agent, of the formula R(OH).sub.x COOR', wherein R is an alkyl or aryl radical containing from about 2 to about 20 carbon atoms, R' is an unsaturated alkyl radical containing from about 6 to about 20 carbon atoms, and x is a number from about 2 to about 6, are disclosed. Such treatment improves the dispersibility of the pigments in thermoplastic resins. The treatment also enables the production of thermoplastic concentrates comprising a high percentage of treated inorganic pigment dispersed in a thermoplastic resin.
    Type: Grant
    Filed: August 23, 1995
    Date of Patent: October 22, 1996
    Assignee: Kerr-McGee Corporation
    Inventor: Rodney D. Stramel
  • Patent number: 5406018
    Abstract: A discrete catalyst and processes for the isomerization of alkanes and the alkylation of isoalkanes under homogenous fluid conditions. The catalyst is formed by contacting, under fluid conditions, a homogenous fluid containing a paraffin hydrocarbon having from 4 to 12 carbon atoms with a Lewis acid/protic Bronsted acid pair and a transition metal to produce a discrete catalytic complex that is soluble in the fluid. The discrete catalyst is the reaction product of the acid pair and alkanes and includes hydrocarbon ligands of limited chain length rendering it soluble in the fluid. The catalyst is active for the isomerization of alkanes and olefins, and the alkylation of isoalkanes, under homogenus fluid conditions.
    Type: Grant
    Filed: December 21, 1992
    Date of Patent: April 11, 1995
    Assignee: Kerr-McGee Corporation
    Inventor: Larry G. Sherman
  • Patent number: 5391077
    Abstract: The invention discloses a simply designed oven which uses forced air convection as a heating mechanism. One or more drums can be installed in the oven over a catch basin of sufficient volume to include the contents of at least one drum. A gear or similar pump is provided to agitate the contents, as well as to perform the pump-out feature. An inert gas blanketing system is provided for each drum so that additional inert gas is supplied to replace the contents being pumped out of the drum while excess vapors created from the warming process, which could ignite if placed adjacent an ignition source, can be piped to a safe place remote from the oven interior.
    Type: Grant
    Filed: December 23, 1993
    Date of Patent: February 21, 1995
    Assignee: Kerr-McGee Corporation
    Inventor: Patrick R. Rosebeary
  • Patent number: 5316697
    Abstract: An inventive process for forming a conductive, particulate, fluorine-doped, zinc oxide product which is doped throughout. The process comprises the step of reacting vapor phase reactants in a vapor phase oxidation system and at a temperature sufficient to form the conductive, particulate, fluorine-doped, zinc oxide product. The vapor phase reactants used in the inventive process comprise: elemental zinc vapor; at least one fluorine source; and at least one water source.
    Type: Grant
    Filed: March 24, 1993
    Date of Patent: May 31, 1994
    Assignee: Kerr-McGee Corporation
    Inventors: Bruce R. Palmer, James W. Kauffman
  • Patent number: 5271851
    Abstract: A process for the treatment of refinery oily sludges to produce an oily fraction that is reprocessed in the refinery into (i) salable products and (ii) a solid residue meeting environmental regulatory agency requirements for disposal in non-hazardous solid waste landfills. The process includes mixing the refinery oily sludge with a particulate filter aid and preferably a single solvent selected from refinery intermediate and product streams and contacting this mixture with plate filters in a closed filter vessel. A cake residue forms on the filter plates and a filtrate mixture of oil, water and solvent is produced. The filtrate is separated into an oily fraction and a water fraction. The oily fraction is rerouted to refinery operating units for processing into salable products. The water fraction is routed to a refinery water treatment system. When filter cake residue has built to a predetermined level, charge to the filter vessel is discontinued.
    Type: Grant
    Filed: March 8, 1993
    Date of Patent: December 21, 1993
    Assignee: Kerr-McGee Corporation
    Inventors: Stephen R. Nelson, Alan M. Claude
  • Patent number: 5215735
    Abstract: A process for co-producing hydrogen peroxide and another useful product, namely either an oxalate ester or a carbonate ester product, is provided The process comprises reacting a saturated monohydric alcohol with carbon monoxide and a quinone to form an oxalate ester or a carbonate ester product and hydroquinone. The hydroquinone is then reacted with oxygen to form hydrogen peroxide and a quinone.
    Type: Grant
    Filed: March 9, 1992
    Date of Patent: June 1, 1993
    Assignee: Kerr-McGee Corporation
    Inventor: Paul C. Ellgen
  • Patent number: 5169618
    Abstract: The present invention provides a novel process for producing hydrogen peroxide. The inventive process utilizes an aqueous liquid reaction medium, a gaseous reactant stream comprising oxygen gas and hydrogen gas, and a catalyst bed comprising a catalyst which is effective for catalyzing the production of hydrogen peroxide from hydrogen and oxygen. The inventive process preferably comprises the step of conducting the gaseous reactant stream and the liquid reaction medium through the fixed catalyst bed in a manner such that a pulse-flow regime is established in the catalyst bed.
    Type: Grant
    Filed: January 13, 1992
    Date of Patent: December 8, 1992
    Assignee: Kerr-McGee Corporation
    Inventor: Mario J. Maraschino
  • Patent number: 5162166
    Abstract: The present invention provides improved devices for the production of electrical energy from mixtures of oxygen (i.e., pure oxygen, air, or a similar source of free oxygen) and fuel (i.e., hydrogen and/or a hydrogen-yielding fuel). The devices generally comprise: a first electrode means for receiving electrons; a second electrode means for supplying electrons; and an electrolytic diffusion means, positioned between the two electrode means, for conducting ions from one electrode means to the other electrode means and for conducting oxygen and fuel, oxygen and hydrogen, or oxygen and a combination of fuel and hydrogen from one electrode means to the other electrode means (FIG. 1). At least one of the electrode means is permeable. Additionally, the first electrode means comprises a catalytic material which is a highly active catalyst for the formation of H.sub.2 O.sub.2 from H.sub.2 and O.sub.2.
    Type: Grant
    Filed: July 19, 1991
    Date of Patent: November 10, 1992
    Assignee: Kerr-McGee Corporation
    Inventor: Paul C. Ellgen
  • Patent number: 5160084
    Abstract: A rail-tie fastening assembly for connecting a rail having a rail flange to a tie comprising a rail seat assembly and a rail anchor. Th rail seat assembly is connectable to the tie and includes an anchor slot and a seat hook assembly. The seat hook assembly is adapted to extend a distance over an upper surface of the rail flange. The rail anchor includes an anchor hook assembly adapted to extend over on the upper surface of the rail flange in an assembled position of the rail anchor to the rail seat assembly. The rail anchor is insertable through the anchor slot in the rail seat assembly to the assembled position. The seat hook assembly is spaced a distance from the upper surface of the rail in the assembled position of the rail anchor to the rail seat assembly. The anchor hook assembly engages one side of the rail flange and the seat hook assembly engages the opposite side of the rail flange to restrain lateral movement.
    Type: Grant
    Filed: January 8, 1992
    Date of Patent: November 3, 1992
    Assignee: Kerr-McGee Corporation
    Inventors: S. Hudson Owen, Roger A. Baldwin, Gerald E. Taylor, Paul A. Wolff
  • Patent number: 5120524
    Abstract: A process for co-producing hydrogen peroxide and another useful product, namely either an oxalate ester or a carbonate ester product, is provided. The process comprises reacting a saturated monohydric alcohol with carbon monoxide and a quinone to form an oxalate ester or a carbonate ester product and hydroquinone. The hydroquinone is then reacted with oxygen to form hydrogen peroxide and a quinone. The quinone from the second reaction can be recycled to the alcohol-carbon monoxide first reaction.
    Type: Grant
    Filed: July 18, 1991
    Date of Patent: June 9, 1992
    Assignee: Kerr-McGee Corporation
    Inventor: Paul C. Ellgen