Patents Represented by Attorney James R. Hoatson, Jr.

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  • Enhanced oil recovery
    Patent number: 4414120
    Abstract: Petroleum may be recovered from subterranean reservoirs containing oil in an enhanced oil recovery process by utilizing an aqueous surfactant slug comprising a mixture of a neutralized sulfonate salt of an alkylated gas oil, said gas oil having been obtained from the thermal cracking of coal, a lower alkyl alcohol containing from about 3 to about 6 carbon atoms and a non-ionic surfactant comprising an ethoxylated alcohol containing from about 12 to about 15 carbon atoms. The surfactant slug will provide a low interfacial tension against the oil.
    Type: Grant
    Filed: June 18, 1981
    Date of Patent: November 8, 1983
    Assignee: UOP Inc.
    Inventors: Thomas P. Malloy, Raymond J. Swedo
  • Hydrocarbon treating process having minimum gaseous effluent
    Patent number: 4412912
    Abstract: A process is disclosed for treating hydrocarbon streams for the purpose of removing mercaptans and also converting the remaining mercaptans to disulfides which remain in the hydrocarbon stream being treated. The hydrocarbons rise through a contacting column countercurrently to a descending stream of an aqueous alkaline solution. A limited amount of an oxygen-containing gas is passed into an intermediate point in the column thereby dividing it into an upper sweetening section and a lower extraction section. The flow rate of the oxygen-containing stream is preferably low enough that any gas not consumed in the catalytic oxidation of mercaptans becomes dissolved in the hydrocarbon product stream, and preferably remains dissolved at atmospheric pressure.
    Type: Grant
    Filed: March 1, 1983
    Date of Patent: November 1, 1983
    Assignee: UOP Inc.
    Inventor: George Asdigian
  • Hydrogenation in aqueous solutions
    Patent number: 4413152
    Abstract: Zerovalent Group VIII metals dispersed on titanated alumina are hydrothermally stable hydrogenation catalysts which may be used advantageously in the reduction of aqueous solutions of carbohydrates. The use of ruthenium on titanated alumina in the hydrogenation of glucose affords sorbitol in excellent yields with quite high selectivity, and with minimal leaching of either ruthenium, titanium, or alumina.
    Type: Grant
    Filed: August 25, 1982
    Date of Patent: November 1, 1983
    Assignee: UOP Inc.
    Inventor: Blaise J. Arena
  • Two product process for methyl tertiary butyl ether production
    Patent number: 4413150
    Abstract: A hydrocarbon conversion process which net high purity isobutane feed streams into two product streams containing an ether such as methyl tertiary butyl ether (MTBE) by reaction with methanol or ethanol. The isobutylene, alcohol and a recycle stream containing C.sub.4 hydrocarbons, alcohol and the product ether are passed through an etherification zone. The total etherification zone effluent stream is separated in a single fractionation column. Preferably the new overhead of the fractionation column is divided into the recycle stream and a second portion which is combined with a portion of the bottoms of this column to produce a gasoline grade MTBE product stream. The remainder of the fractionation column bottoms is a second product stream of chemical grade MTBE.
    Type: Grant
    Filed: December 18, 1981
    Date of Patent: November 1, 1983
    Assignee: UOP Inc.
    Inventor: Bruce A. Briggs
  • Enhanced oil recovery
    Patent number: 4411802
    Abstract: The recovery of residual oil which is found in subterranean reservoirs may be accomplished by utilizing an aqueous surfactant slug to reduce the interfacial tension between the oil and water. A surfactant slug which may be used will comprise a mixture of a neutralized sulfonate derivative from powdered coal, a lower alkyl alcohol which possesses from about 3 to about 6 carbon atoms and a non-ionic surfactant comprising an ethoxylated n-alcohol possessing from about 12 to about 15 carbon atoms. The surfactant slug will possess relatively low interfacial tension which may be in the range of from below 10.sup.-3 dynes per cm.
    Type: Grant
    Filed: September 8, 1981
    Date of Patent: October 25, 1983
    Assignee: UOP Inc.
    Inventors: George W. Lester, Thomas P. Malloy
  • Reactor system
    Patent number: 4411870
    Abstract: A reactor system is disclosed which comprises a reaction chamber containing a plurality of reaction zones, each of which comprises an annular-form catalyst-retaining section, whereby a reactant stream is distributed amongst said reaction zones in a manner to promote uniform flow of reactants across said sections. The disclosed reactor system is of particular advantage with respect to a relatively low pressure hydrocarbon conversion process.
    Type: Grant
    Filed: February 28, 1983
    Date of Patent: October 25, 1983
    Assignee: UOP Inc.
    Inventors: Joseph A. Kroushl, Arthur R. Greenwood
  • Multiple stage reactor system
    Patent number: 4411869
    Abstract: The reactor system of this invention comprises two or more vertically spaced or stacked reaction chambers each of which contains two or more vertically positioned annular-form catalyst-retaining sections existing side-by-side, each of said catalyst-retaining sections being defined by an inner tubular-form catalyst-retaining screen coaxially disposed within a vertically positioned outer tubular-form catalyst-retaining screen. Catalyst particles are movable through the resulting annular-form catalyst sections in a dense phase via gravity flow. A reactant stream is processed serially through said reaction chambers, and contacted with catalyst within said annular-form catalyst-retaining sections in a manner to promote uniform flow of reactants across said sections. The disclosed reactor system is of particular advantage with respect to a relatively low pressure hydrocarbon conversion process.
    Type: Grant
    Filed: February 28, 1983
    Date of Patent: October 25, 1983
    Assignee: UOP Inc.
    Inventors: Joseph A. Kroushl, Arthur R. Greenwood
  • N,N',N"-Trisubstituted-bis-(p-aminobenzyl) anilines as antioxidants
    Patent number: 4411805
    Abstract: A class of N,N',N"-trisubstituted bis-(p-aminobenzyl)anilines are found to be effective antioxidants in a broad spectrum of petroleum and petroleum related products. Trialkyl, tri(arylmethyl), and tri(heteroarylmethyl) substituted materials of the parent compound are especially effective at concentrations as low as about 0.0005 percent by weight.
    Type: Grant
    Filed: January 8, 1982
    Date of Patent: October 25, 1983
    Assignee: UOP Inc.
    Inventor: John T. Roberts
  • Method for treating mercaptans contained in a sour petroleum distillate
    Patent number: 4411776
    Abstract: A method of treating a mercaptan-containing sour petroleum distillate is disclosed which method comprises the steps of contacting the distillate at oxidation conditions with a catalytic composite comprising a metal chelate, at least about 10 wt. % of an alkali metal hydroxide, and an adsorptive support, prepared by admixing the support, metal chelate, alkali metal hydroxide, and an alcohol having fewer than about six carbon atoms, to form an admixture having less than about 25 wt. % water, and drying the admixture at a temperature of less than about 30.degree. C.
    Type: Grant
    Filed: September 16, 1982
    Date of Patent: October 25, 1983
    Assignee: UOP Inc.
    Inventor: David H. J. Carlson
  • Noble metal and rare earth metal catalyst
    Patent number: 4410454
    Abstract: The composition, use and manufacture of a catalyst comprising a noble metal, a rare earth metal and a metallic support with the noble and rare earth metal being electroplated on the metallic support. A preferred composition is lanthanum, platinum and palladium on a nickel chromium alloy support. The catalyst has utility in the oxidation of fumes comprising industrial waste gases and in the oxidation of components of automotive exhaust gases.
    Type: Grant
    Filed: March 2, 1982
    Date of Patent: October 18, 1983
    Assignee: UOP Inc.
    Inventor: Gerald L. Faschingbauer
  • Process for the reduction of unsaturated carboxylic acids
    Patent number: 4410460
    Abstract: Unsaturated carboxylic acids may be reduced to an ester or to a corresponding alcohol by treatment with hydrogen in the presence of a reducing catalyst system. The reducing catalyst system which is used in the present invention comprises rhenium and a nitrogen-containing compound composited on a solid support as exemplified by rhenium and ammonium hydroxide composited on gamma-alumina. By utilizing this catalyst system, it is possible to obtain products in which the carbonyl group of the molecule has been reduced with some retention of the double bond of the carbon chain.
    Type: Grant
    Filed: December 9, 1981
    Date of Patent: October 18, 1983
    Assignee: UOP Inc.
    Inventors: Gail M. Qualeatti, Dalia Germanas
  • Multifunctional gasoline additives
    Patent number: 4410335
    Abstract: The reaction products of epoxides, containing from about 6 to about 20 carbon atoms, with unsubstituted alkylenediamines, N-alkyl alkylenediamines, N-alkoxyalkyl alkylenediamines and poly (ethyleneamines) are effective carburetor detergents and reduce deposits on various components of internal combustion engines. Internal epoxides containing at least one branched alkyl group afford reaction products with particularly desirable properties.
    Type: Grant
    Filed: February 16, 1982
    Date of Patent: October 18, 1983
    Assignee: UOP Inc.
    Inventor: Michael E. Childs
  • Butylene isomerization process
    Patent number: 4410754
    Abstract: An olefin isomerization process useful in recovering isobutylene from mixed butylene feed streams is disclosed. Preferably, the feed stream is passed through a first reaction zone to convert some butene-1 to butene-2 and then fed to the lower part of a two-part fractionation system. The butene-2-rich bottoms is withdrawn and the overhead vapor is passed through a second reaction zone in admixture with hydrogen before entering the second or upper part of the fractionation system. The bottoms liquid of the upper part of the fractionation system flows into the lower part of the fractionation system. Isobutylene and recycle hydrogen are recovered from the overhead vapor of the upper part of the fractionation system.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: October 18, 1983
    Assignee: UOP Inc.
    Inventor: Steve A. Gewartowski
  • Corrosion inhibitors
    Patent number: 4409121
    Abstract: Corrosion and scale-inhibiting compositions which are useful in recirculating aqueous systems comprise a mixture of a phosphate compound, a phosphonate compound comprising 1-hydroxyethylidene-1,1-diphosphonic acid or nitrilotris(methylene)triphosphonic acid, an aryl triazole, and a salt of a metal selected from the group consisting of molybdenum, tungsten and chromium. In the preferred embodiment of the invention, the phosphate compound is present in a weight percent ratio in the range of from about 2.5:1 to about 4:1 weight percent per weight percent of the metal salt. An example of an effective anti-corrosion composition comprises a mixture of sodium tripolyphosphate, 1-hydroxyethylidene-1,1-diphosphonic acid, benzotriazole and sodium molybdate, said composition being present in an amount of from about 5 to about 5,000 ppm.
    Type: Grant
    Filed: June 28, 1982
    Date of Patent: October 11, 1983
    Assignee: UOP Inc.
    Inventors: Edwin J. Latos, John C. Payne
  • Process for the reduction of unsaturated carboxylic acids
    Patent number: 4409148
    Abstract: Unsaturated carboxylic acids may be reduced to the corresponding alcohols and esters while maintaining some degree of unsaturation in the carbon atom chain of the molecule by treating said acids with hydrogen in the presence of a catalyst system comprising rhenium composited on a solid support such as alumina and a phosphorous-containing compound as a modifier. The catalyst which is employed at reaction condition, including a temperature in the range of from about 100.degree. to about 500.degree. C. and a pressure in the range of from about 100 to about 5000 psi, may be exemplified by rhenium composited on gamma-alumina and hypophosphorous acid.
    Type: Grant
    Filed: December 9, 1981
    Date of Patent: October 11, 1983
    Assignee: UOP Inc.
    Inventors: Gail M. Qualeatti, Dalia Germanas
  • Catalytic reforming process
    Patent number: 4409095
    Abstract: A catalytic reforming process is disclosed in which substantially all of the heat requirements of the product stabilizer column is supplied by multiple indirect heat exchange.
    Type: Grant
    Filed: September 28, 1982
    Date of Patent: October 11, 1983
    Assignee: UOP Inc.
    Inventor: Kenneth D. Peters
  • Simulated moving bed separation process for high viscosity feed streams
    Patent number: 4409033
    Abstract: An improvement is achieved in the operation of a process for the adsorptive separation of different components of a viscous high density feed stream, such as the separation of fructose from an aqueous mixture containing 50 wt. % fructose and glucose, in which the use of a moving bed of adsorbent is simulated. The improvement results from locating the fluid distribution means which switches the flow of the process streams between conduits leading to various points in the adsorbent bed at an elevation which is above the adsorbent bed. This reduces contamination of the next process stream to flow through the conduits which previously carried the feed stream.
    Type: Grant
    Filed: December 18, 1981
    Date of Patent: October 11, 1983
    Assignee: UOP Inc.
    Inventor: Charles F. LeRoy
  • Preparation of metal oxide-supported boron fluoride catalysts
    Patent number: 4407731
    Abstract: Catalytic compositions of matter which are useful in oligomerization and alkylation reactions may be prepared by treating a metal oxide support such as alumina with an aqueous solution of an acid, washing the treated metal oxide with an aqueous solution of an alkaline compound followed by drying and calcining the support. The treated support which contains added hydroxyl groups on the surface thereof is then impregnated with boron trifluoride to form the desired catalyst. The catalyst which possesses a high activity may be used at lower reaction conditions to give comparable results of conversion and selectivity.
    Type: Grant
    Filed: November 8, 1982
    Date of Patent: October 4, 1983
    Assignee: UOP Inc.
    Inventor: Tamotsu Imai
  • Process for the separation of methylparaben from wintergreen oil
    Patent number: 4408065
    Abstract: An adsorptive separation process for separating methylparaben from a feed mixture comprising methylparaben and wintergreen oil, which process comprises contacting the feed mixture with an adsorbent comprising a type X or type Y zeolite, selectively adsorbing substantially all of the methylparaben to the substantial exclusion of the wintergreen oil and thereafter recovering high-purity methylparaben. A desorption step may be used to desorb the adsorbed methylparaben. The process is carried out preferably in the liquid phase.
    Type: Grant
    Filed: March 23, 1981
    Date of Patent: October 4, 1983
    Assignee: UOP Inc.
    Inventors: Armand J. deRosset, James W. Priegnitz, Arthur M. Landis
  • Laminates for printed circuit boards
    Patent number: 4407883
    Abstract: Laminates for printed circuit boards may comprise a metal-covered, relatively thin high temperature-resistant barrier material bonded to at least one side of a core material, the temperature resistance of the barrier layer being greater than that of the core. An example of the laminate will comprise a core material comprising an epoxy/glass laminate to which is bonded on both sides a barrier layer comprising a polyimide resin, said polyimide resin having a copper foil on the outer surface thereof. The laminates may be prepared by laying up a metal-clad high temperature-resistant barrier which has been fully cured on the core material followed by lamination of the composite at a temperature in the range of from about 150.degree. F. to about 450.degree. F. and a pressure in the range of from about 100 to about 1200 psi.
    Type: Grant
    Filed: March 3, 1982
    Date of Patent: October 4, 1983
    Assignee: UOP Inc.
    Inventor: Thomas D. Newton