Patents Represented by Attorney William T. McClain
  • Patent number: 4638098
    Abstract: A process for etherifying phenols comprising reacting phenols at elevated temperature and pressure with a reactant selected from the group consisting of alcohol, ether and mixtures thereof in the presence of a catalyst comprising a sulfated oxide of a Group IIB metal selected from the group consisting of Zn, Cd, Hg and mixtures thereof on a support.
    Type: Grant
    Filed: March 10, 1986
    Date of Patent: January 20, 1987
    Assignee: Amoco Corporation
    Inventor: Allen B. Mossman
  • Patent number: 4636299
    Abstract: The present invention provides for a process for reducing the pour point of a hydrocarbon feedstock containing nitrogen- and sulfur-containing compounds. Specifically, the hydrocarbon feedstock is passed to an extraction zone wherein N-Methyl-2-pyrrolidone is used to extract a portion of the aromatic compounds. A portion of the extraction zone raffinate is then passed to a hydrotreating zone wherein a portion of the nitrogen and sulfur containing compounds are converted to hydrogen sulfide and ammonia. Subsequently, a portion of the hydrotreating zone effluent is then passed to a dewaxing zone and contacted with a shape selective molecular sieve containing dewaxing catalyst.
    Type: Grant
    Filed: December 24, 1984
    Date of Patent: January 13, 1987
    Assignee: Standard Oil Company (Indiana)
    Inventors: Eugene E. Unmuth, John A. Mahoney, Ralph J. Bertolacini
  • Patent number: 4634541
    Abstract: A small amount of hydrogen sulfide, an olefin, a mercaptan, an epoxide, a phosphite or a phosphine are added to a zinc dialkyldithiophosphate salt to decrease the rate of color generation upon storage and/or exposure to heat.
    Type: Grant
    Filed: January 28, 1985
    Date of Patent: January 6, 1987
    Assignee: Standard Oil Company
    Inventors: Gunter Caspari, Joseph J. Valcho
  • Patent number: 4632053
    Abstract: A method for treating plastic containers with a resin to improve barrier properties thereof including conditioning with an ionizing gas, dipping container in latex of barrier resin and drying container including removing drop from bottom thereof. Apparatus for carrying out the process is shown.
    Type: Grant
    Filed: July 12, 1985
    Date of Patent: December 30, 1986
    Assignee: Amoco Corporation
    Inventors: James G. Villanueva, John D. Matlack, Shelton E. Lewis, John F. E. Pocock, Charles A. Cole
  • Patent number: 4631264
    Abstract: Catalyst and process are disclosed for preparation of alpha, beta-unsaturated acids. Catalyst comprises a silica component and a Group IA alkali metal component which is present in an amount of from 200 to 15,000 parts per million, said silica component containing less than about 500 parts per million individually of aluminum, zirconium, titanium, iron and mixtures thereof. Process comprises reacting formaldehyde and a carboxylic acid of the formula RCH.sub.2 COOH wherein R is a member of the class consisting of -H, -alkyl, -aryl, -aralkyl, -cycloalkyl, and -alkylaryl radicals in the presence of said catalyst. Catalyst activity is maintained during process by addition of source of alkali metal component.
    Type: Grant
    Filed: October 7, 1985
    Date of Patent: December 23, 1986
    Assignee: Standard Oil Company (Indiana)
    Inventor: Gary P. Hagen
  • Patent number: 4629700
    Abstract: A process for producing aromatic compound having at least one cyano group and one amide group or carboxyl group which process comprises subjecting aromatic polynitrile compound containing no carboxyl groups in a simple medium to the action of one or more microorganisms which have a nitrilase system capable of selectively hydrolyzing one cyano group of the polynitrile.
    Type: Grant
    Filed: November 30, 1983
    Date of Patent: December 16, 1986
    Assignee: Standard Oil Company (Indiana)
    Inventors: William D. Prevatt, Cavit Akin, April J. Evans
  • Patent number: 4629859
    Abstract: The rate of evaporation of material from a laser-heated target is enhanced by coating the target with a layer of condensed substantially inert gas.
    Type: Grant
    Filed: April 12, 1985
    Date of Patent: December 16, 1986
    Assignee: Standard Oil Company (Indiana)
    Inventor: K. Virupaksha Reddy
  • Patent number: 4629715
    Abstract: Aqueous solutions of crude terephthalic acid are purified to relatively low 4-carboxybenzaldehyde levels under hydrogenation conditions by using a layered catalyst bed. The aqueous terephthalic acid solution to be purified is first passed through a particulate primary catalyst layer constituted by palladium on active carbon and thereafter through a particulate secondary catalyst bed constituted by rhodium on active carbon.
    Type: Grant
    Filed: October 7, 1985
    Date of Patent: December 16, 1986
    Assignee: Amoco Corporation
    Inventor: Hobe Schroeder
  • Patent number: 4626598
    Abstract: An improved method for producing purified terephthalic acid by catalytic hydrogenation is disclosed. Control of the reduction of colored compounds during the production of purified terephthalic acid is effected by modulating solution hydrogen concentration during hydrogenation.
    Type: Grant
    Filed: June 17, 1985
    Date of Patent: December 2, 1986
    Assignee: Amoco Corporation
    Inventors: Lawrence G. Packer, David E. James
  • Patent number: 4624836
    Abstract: A plug valve which effects the immediate and intimate mixing of fluidizable cracking catalyst with a fluid hydrocarbon in a riser reactor. Specifically there is an elongated feed tube extending generally upwardly through the acess opening into the riser, anda plug valve having a generally upright tubular valve stem positioned concentrically and externally around a portion of the feed tube and a hollow plug secured to the valve stem which is engageable with said access opening, where the plug valve is movable in a reciprocating fashion from a closed position for blocking the access opening to an open position for permitting the flow of cracking catalyst through the access opening into the riser reactor.
    Type: Grant
    Filed: July 9, 1984
    Date of Patent: November 25, 1986
    Assignee: Standard Oil Company (Indiana)
    Inventors: Robert R. Cartmell, Carl J. Horecky
  • Patent number: 4623432
    Abstract: The recovery of an acetic acid product of low brominated organics content can be made from the liquid effluent from n-butane oxidation with oxygen gas in the presence of an acetic acid solution containing ion of bromine in combination with ions of cobalt or with ions of manganese and cobalt. Such recovery is made not by the use of a series of separate fractionation towers but rather by the use of a single fractionation tower having a top rectification zone, an intermediate stripping zone with a feed inlet at the top thereof and a bottom reboiler zone below the stripping zone wherein the acetic acid product is removed as a vapor product from said stripping zone below said feed inlet but above the reboiler zone.
    Type: Grant
    Filed: April 23, 1984
    Date of Patent: November 18, 1986
    Assignee: Amoco Corporation
    Inventor: Moinuddin H. Ali
  • Patent number: 4622210
    Abstract: A system is provided in which particulates and sulfur oxides are simultaneously removed from flue gases in a granular bed filter with special sulfur oxide-capturing and particulate-removing material. The spent sulfur oxide-capturing and particulate-removing material can be regenerated in a lift pipe riser.
    Type: Grant
    Filed: August 13, 1984
    Date of Patent: November 11, 1986
    Assignee: Standard Oil Company (Indiana)
    Inventors: Eugene H. Hirschberg, Carl J. Horecky
  • Patent number: 4620922
    Abstract: There are disclosed a catalyst and a process for the hydrodenitrogenation of a hydrocarbon stream containing a substantial amount of nitrogen compounds, such as whole shale oil.The catalyst comprises a hydrogenation component comprising chromium, molybdenum, and at least one Group VIII metal deposed upon a porous alumina-silica support, the silica of said support being present in an amount within the range of about 10 wt % to about 50 wt %, based upon the weight of said support.The process comprises contacting the hydrocarbon stream under hydrodenitrogenation conditions and in the presence of hydrogen with the aforesaid catalyst.
    Type: Grant
    Filed: January 14, 1986
    Date of Patent: November 4, 1986
    Assignee: Standard Oil Company (Indiana)
    Inventors: A. Martin Tait, Thomas D. Nevitt, Albert L. Hensley, Jr.
  • Patent number: 4619821
    Abstract: A process to decompose ozone comprises passing an ozone-containing gas with a catalyst comprised of an AMS-1B crystalline borosilicate catalyst.
    Type: Grant
    Filed: December 2, 1985
    Date of Patent: October 28, 1986
    Assignee: Amoco Corporation
    Inventor: Stephen R. Ely
  • Patent number: 4620049
    Abstract: The method is particularly adapted for controlling the molecular weight of a product output from a polybutene reactor. The method includes the steps of: deriving from the operating parameter of a polybutene reactor system a formula which correlates molecular weight as determined by product viscosity or other parameters of the product output with operating variables such as temperature of the reactor and concentration of isobutylene in the reactor, which concentration can be controlled by the amount of catalyst, e.g.
    Type: Grant
    Filed: October 31, 1984
    Date of Patent: October 28, 1986
    Assignee: Standard Oil Company (Indiana)
    Inventors: Gregory E. Schmidt, Linus K. Leung, Lawrence J. Beck, David S. Chang
  • Patent number: 4618594
    Abstract: There is disclosed a catalyst, which catalyst comprises a hydrogenation component comprising chromium, molybdenum, and at least one metal of Group VIII, a crystalline molecular sieve zeolite, and a porous refractory inorganic oxide. Suitable molecular sieve zeolites are those having pore diameters of at least 5 .ANG. (0.5 nm) and containing exchangeable cations, for example, faujasite-type crystalline aluminosilicates, mordenite-type crystalline aluminosilicates, ZSM-type crystalline aluminosilicates, and AMS-type crystalline metallosilicates.There is also disclosed a process, which process comprises contacting a hydrocarbon stream containing a substantial amount of nitrogen under hydrotreating conditions and in the presence of hydrogen with the aforesaid catalyst.
    Type: Grant
    Filed: January 23, 1986
    Date of Patent: October 21, 1986
    Assignee: Standard Oil Company (Indiana)
    Inventors: A. Martin Tait, Thomas D. Nevitt, Albert L. Hensley, Jr.
  • Patent number: 4617175
    Abstract: A system is provided in which particulates, nitrogen oxides, and sulfur oxides are simultaneously removed from flue gases in a granular bed filter and scrubber with a nitrogen oxide-capturing reducing agent and a bed of sulfur oxide-capturing and particulate-removing material. the spent sulfur oxide-capturing and particulate-removing material can be regenerated in a lift pipe riser.
    Type: Grant
    Filed: August 13, 1984
    Date of Patent: October 14, 1986
    Assignee: Standard Oil Company (Indiana)
    Inventors: Thomas W. Tolpin, Richard A. Kretchmer
  • Patent number: 4617342
    Abstract: A crystalline polyamide which has improved tensile strength and which has a heat deflection temperature in excess of 240.degree. C. when filled is formed from dicarboxylic acid compounds comprising compounds of terephthalic acid and isophthalic acid in a molar ratio of at least 80:20 to about 99:1 and diamines comprising hexamethylene diamine and trimethylhexamethylene diamine in a molar ratio of about 98:2 to about 60:40.
    Type: Grant
    Filed: May 16, 1985
    Date of Patent: October 14, 1986
    Assignee: Amoco Corporation
    Inventors: Wassily Poppe, Yu-Tsai Chen, Edward E. Paschke
  • Patent number: 4615362
    Abstract: An environmentally safe protection device is provided to contain and store both fill hose spillage and underground tank overfill of gasoline and diesel fuel. The containment and protection device has a fill tube and an auxiliary vapor return tube to accommodate Stage I Vapor Recovery. The containment device also has a reservoir to contain overfill from the underground tank and spillage from the fill hose. A special valve assembly automatically drains motor fuel from the reservoir into the underground tank when the tank is at least partially empty and prevents upward passage of motor fuel and vapors into the reservoir when the tank is overfilled. A dual lid arrangement is provided to prevent water and debris from contaminating the fuel in the reservoir.
    Type: Grant
    Filed: April 25, 1985
    Date of Patent: October 7, 1986
    Assignee: Standard Oil Company (Indiana)
    Inventors: Harry B. Hartman, Gerard V. LaLonde, Michael S. Butkovich
  • Patent number: 4615390
    Abstract: A method and related system are disclosed for combining two fluids in correct proportions. The flow rates of the two fluids are measured and the volume proportion of the first fluid to the second fluid is determined from these measurements. The flow rate of the first fluid is then continuously adjusted to bring the proportion of the fluids to and be maintained at a predetermined value. In one embodiment of the present invention, the flow of an inert gas and the flow of a hydrocarbon gas are measured and adjusted prior to combining and injection into a wellbore. A microprocessor is utilized to calculate the proportion of the fluids from the measurements of flow and then to automatically change the position of the valve to adjust the flow rate of the inert gas.
    Type: Grant
    Filed: December 28, 1983
    Date of Patent: October 7, 1986
    Assignee: Standard Oil Company (Indiana)
    Inventors: Philip J. Lucas, Charles P. Reese, Cham Ocondi