Patents Represented by Attorney Raymond H. Nelson

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  • Electrochemical oxidation of alkoxy-substituted aromatic compounds
    Patent number: 4104141
    Abstract: The electrochemical oxidation of alkoxy-substituted aromatic compounds in which a desired position isomer is obtained may be effected by treating the aromatic compound with an aliphatic acid containing at least 4 carbon atoms in the presence of a phase transfer agent, said reaction being effected in an electrochemical cell. In the present invention the position isomer which comprises the para compound is prepared by treating a substituted aromatic compound such as anisole with a bulky acid such as pivalic acid in an electrochemical cell whereby the desired oxidized product is recovered on the anode.
    Type: Grant
    Filed: August 3, 1977
    Date of Patent: August 1, 1978
    Assignee: UOP Inc.
    Inventors: Michael Martan, Mark A. Halter
  • Carbonylation of alcohols
    Patent number: 4100359
    Abstract: The carbonylation of alcohols in which an alcohol is treated with carbon monoxide may be improved by the use of a heterogeneous catalyst (namely, a chlorohodium phthalocyanine catalyst) promoted by a sulfonic acid or sulfonate group (either attached to the phthalocyanine compound or to an added organic compound) and an alkyl iodide.
    Type: Grant
    Filed: January 12, 1977
    Date of Patent: July 11, 1978
    Assignee: UOP Inc.
    Inventors: Louis Schmerling, Edwin H. Homeier
  • Production of titanium trichloride from ilmenite
    Patent number: 4098868
    Abstract: Titanium metal values may be recovered from a titanium bearing source by roasting said source in a reducing atmosphere, leaching the source with aqueous hydrogen chloride at an elevated temperature, cooling and saturating the leached solution with gaseous hydrogen chloride to precipitate hydrated ferrous chloride, separating the precipitated ferrous chloride from the soluble titanium chloride, raising the temperature of the solution to precipitate the titanium, separating and recovering the crystallized titanium compound.
    Type: Grant
    Filed: April 27, 1977
    Date of Patent: July 4, 1978
    Assignee: UOP Inc.
    Inventor: William K. Tolley
  • Electrocatalysts and a method for the preparation thereof
    Patent number: 4090978
    Abstract: Electrocatalysts which may be used in the preparation of electrodes for electrochemical cells such as fuel cells comprise a carbonaceous pyropolymer having the surface thereof impregnated with at least one catalytically active metal. The electrocatalysts may be prepared by treating a refractory inorganic oxide with a pyrolyzable organic compound at pyrolysis conditions to form a carbonaceous pyropolymer on the surface of said refractory inorganic oxide. Thereafter the composite may be impregnated with a soluble salt of at least one catalytically active metal and thereafter the composite may be leached to remove the refractory inorganic oxide. Alternatively, the composite may be leached to remove the refractory inorganic oxide prior to impregnation with the catalytically active metal.
    Type: Grant
    Filed: December 28, 1976
    Date of Patent: May 23, 1978
    Assignee: UOP Inc.
    Inventors: Lawrence B. Welsh, Richard W. Leyerle
  • Electrochemical oxidation of alkoxy-substituted aromatic compounds
    Patent number: 4089757
    Abstract: The electrochemical oxidation of alkoxy-substituted aromatic compounds may be effected by treating the aromatic compound with propionic acid in the presence of a phase transfer agent, said reaction being effected in an electrochemical cell. In the present invention the position isomer which comprises the para compound is prepared in a favorable ratio over the ortho isomer by treating a substituted aromatic compound such as anisole with propionic acid in an electrochemical cell whereby the desired oxidized product is recovered on the anode.
    Type: Grant
    Filed: September 27, 1977
    Date of Patent: May 16, 1978
    Assignee: UOP Inc.
    Inventor: Mark A. Halter
  • Transesterification of olefins
    Patent number: 4088820
    Abstract: Olefins may be esterified by reaction with esters of saturated alcohols containing at least two carbon atoms in the presence of a catalytic amount of a tin halide catalyst, the reaction being effected at temperatures ranging from about 0.degree. to about 150.degree. C.
    Type: Grant
    Filed: October 28, 1976
    Date of Patent: May 9, 1978
    Assignee: UOP Inc.
    Inventor: Louis Schmerling
  • Production of metallic lead
    Patent number: 4087340
    Abstract: The production of metallic lead from lead bearing sources such as lead sulfide concentrates may be improved by subjecting the lead sulfide concentrates to a prehalogenation activation treatment at a temperature in the range of from about 300.degree. to about 600.degree. C. before subjecting said concentrate to the halogenation step which is effected at a temperature in the range of from about 80.degree. to about 120.degree. C. followed by leaching, filtering, crystallization and electrolysis.
    Type: Grant
    Filed: February 16, 1977
    Date of Patent: May 2, 1978
    Assignee: UOP Inc.
    Inventors: John C. Stauter, William K. Tolley
  • Conductive metal pigments
    Patent number: 4079156
    Abstract: Conductive metal pigments which may be used in electrical devices are prepared by forming an alloy of a non-noble conductive metal and at least one oxidizable material, mixing the resulting alloy with a vitreous frit and an organic vehicle to form an ink, screening said ink onto a substrate, firing the alloy in an air atmosphere at a temperature in excess of about 500.degree. C. and cooling the ink to produce a conductive pigment. The oxidizable material is preferentially oxidized during the firing with a concomitant non-oxidation of the non-noble conductive metal.
    Type: Grant
    Filed: July 19, 1976
    Date of Patent: March 14, 1978
    Assignee: UOP Inc.
    Inventors: Karl J. Youtsey, Steven A. Bradley
  • Catalytic hydroformylation process
    Patent number: 4070403
    Abstract: The hydroformylation of olefinic hydrocarbons is effected by treating the hydrocarbon with hydrogen and carbon monoxide in the presence of a catalyst system which comprises a cobalt-containing compound chemically bonded to a zeolite-alumina hydrosol dispersion. The reaction is effected at temperatures ranging from about 70.degree. to about 300.degree. C. and pressures ranging from about 1 to about 500 atmospheres.
    Type: Grant
    Filed: February 10, 1977
    Date of Patent: January 24, 1978
    Assignee: UOP Inc.
    Inventor: Edwin H. Homeier
  • Hydrometallurgical recovery of metal values
    Patent number: 4069294
    Abstract: In the hydrometallurgical recovery of metal values from ores and the like in which a metal bearing source is reduced in the presence of at least one additive at temperatures ranging from about 500.degree. to about 900.degree. C. and thereafter extracted, the improvement of said process comprises pretreating a portion of process tails from a preceding run with the additive prior to the reducing roast. The additive which is used to pretreat the minor portion of the feed stock may comprise that which is recovered from the roaster offgas and admixed with a portion of the tail stream from the extraction step.
    Type: Grant
    Filed: April 21, 1976
    Date of Patent: January 17, 1978
    Assignee: UOP Inc.
    Inventor: Laurence G. Stevens
  • Preparation of acrylamide
    Patent number: 4069255
    Abstract: Acrylamide may be prepared by the hydrolysis of acrylonitrile by treating the acrylonitrile with water in the presence of a copper catalyst which has been prepared by volatilizing copper metal at a temperature in the range of from about 1000.degree. to about 1500.degree. C. in vacuo and condensing the vapors in the presence of an organic solvent.
    Type: Grant
    Filed: September 30, 1976
    Date of Patent: January 17, 1978
    Assignee: UOP Inc.
    Inventor: Michael Martan
  • Apparatus for the preparation of semiconducting pyropolymeric inorganic refractory oxide materials
    Patent number: 4064829
    Abstract: Semiconducting carbonaceous pyropolymeric inorganic refractory oxide materials are prepared by utilizing a continuous semi-fluidized bed system comprising a laterally disposed tubular reaction section, a stabilizing section and a cooling section in axial alignment with one another, means for introducing an inorganic refractory oxide into said reaction section and means for introducing a gaseous hydrocarbon pyropolymeric precursor into the reaction section whereby said oxide is contacted with a precursor while maintaining said oxide in a semi-fluidized state.
    Type: Grant
    Filed: September 7, 1976
    Date of Patent: December 27, 1977
    Assignee: UOP Inc.
    Inventor: George L. Hervert
  • Removal of hydroxyl-, carboxy-, or amino substituents from aromatic compounds using a group VI B catalyst
    Patent number: 4062904
    Abstract: Substituent groups which are positioned on the nuclei of aromatic compounds may be removed therefrom by treating the substituted compound with hydrogen at an elevated temperature in the presence of hydrogenation catalysts and particularly transition metal oxides and sulfides.
    Type: Grant
    Filed: September 27, 1976
    Date of Patent: December 13, 1977
    Assignee: UOP Inc.
    Inventor: Louis Schmerling
  • Recovery of vanadium values
    Patent number: 4061711
    Abstract: Vanadium values may be recovered by leaching a vanadium bearing material in which the vanadium is present as an oxide in its highest valence state in an ammoniacal medium at elevated temperatures and pressures followed by separation of the soluble ammonium metavanadate, precipitation and further separation to recover the desired vanadium values.
    Type: Grant
    Filed: October 26, 1976
    Date of Patent: December 6, 1977
    Assignee: UOP Inc.
    Inventors: Kenneth A. Morgan, Robert R. Frame
  • Recovery of vanadium values
    Patent number: 4061712
    Abstract: Vanadium values such as those in the form of vanadium pentoxide may be recovered from vanadium-containing materials by leaching the vanadium-containing material with caustic and thereafter precipitating insoluble salts of vanadium with an ammonium-containing compound followed by separation and recovery. After suitable stripping of the ammonia from the lean leach solution, said solution may be recycled to the leach step. The recovery of the vanadium values is enhanced by effecting the precipitation step in the presence of carbon dioxide which maintains the pH of the solution in the optimum range.
    Type: Grant
    Filed: October 26, 1976
    Date of Patent: December 6, 1977
    Assignee: UOP Inc.
    Inventors: Kenneth A. Morgan, Marilyn Miller
  • Separation of isomers of phenols and phenolic ethers
    Patent number: 4058566
    Abstract: Mixtures of isomeric ortho and para alkylated phenols or phenolic ethers may be separated without extensive distillation by treating a mixture of the isomers with a polyalkylene polyamine such as hexamethylenetetramine in the presence of a protonic solvent at sub-ambient temperatures.
    Type: Grant
    Filed: September 1, 1976
    Date of Patent: November 15, 1977
    Assignee: UOP Inc.
    Inventor: Michael Martan
  • Vulcanizable rubber formulations with bis(sulfonamido)sulfide
    Patent number: 4053458
    Abstract: Vulcanizable rubber formulations will contain, as an inhibitor therefor, a compound having the formula: ##STR1## in which R and R' are independently selected from the group consisting of alkyl of from 1 to about 6 carbon atoms, cycloalkyl having from 3 to about 8 carbon atoms, phenyl and tolyl radicals. The aforesaid rubber formulations are exemplified by a styrene-butadiene rubber containing bis(N-methyl-p-toluenesulfonamido)sulfide.
    Type: Grant
    Filed: May 27, 1976
    Date of Patent: October 11, 1977
    Assignee: UOP Inc.
    Inventors: Robert J. Arnold, Marion J. Gattuso
  • Synthesis of diphenylmethane using phosphoric-sulfuric acid catalyst
    Patent number: 4049733
    Abstract: Diphenylmethane may be synthesized in relatively higher yields than has hereinbefore been obtained by reacting dibenzyl ether with benzene in the presence of protonic acid catalysts which contain a phosphoric acid.
    Type: Grant
    Filed: October 17, 1975
    Date of Patent: September 20, 1977
    Assignee: UOP Inc.
    Inventor: Michael Martan
  • Photopolymerization using an alpha-aminoacetophenone
    Patent number: 4048034
    Abstract: Polymerizable monomers are photopolymerized by subjecting the monomer to the emission from an ultra-violet light source in the presence of a photosensitizing compound and an activating compound .It has now been discovered that certain types of substituted acetophenones will act as both a sensitizer and an activator thus eliminating the presence of more than one compound in the monomer.
    Type: Grant
    Filed: August 27, 1976
    Date of Patent: September 13, 1977
    Assignee: UOP Inc.
    Inventor: Michael Martan
  • Oligomerization process and catalysts therefor
    Patent number: 4048109
    Abstract: Olefinic hydrocarbons containing from 2 to about 6 carbon atoms are oligomerized by treatment with a heterogeneous oligomerization catalyst which is prepared by reducing titanium tetrachloride supported on a Group IIIA metal oxide with hydrogen at an elevated temperature.
    Type: Grant
    Filed: December 29, 1975
    Date of Patent: September 13, 1977
    Assignee: UOP Inc.
    Inventor: Ji-Yong Ryu