Patents Represented by Attorney K. K. Brandes

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  • Extractive distillation of hydrocarbon mixtures employing mixed solvent
    Patent number: 4948472
    Abstract: A mixture of (a) at least one N-alkyl-2-pyrrolidone (preferably N-methyl-2-pyrrolidone) and (b) at least one glycol compound (preferably ethylene glycol or tetraethylene glycol) is used as solvent in the extractive distillation of a feed mixture of cycloalkane(s) (in particular cyclohexane) and close-boiling alkane(s).
    Type: Grant
    Filed: July 12, 1989
    Date of Patent: August 14, 1990
    Assignee: Phillips Petroleum Company
    Inventors: Fu Ming Lee, Ronald E. Brown
  • Extractive distillation of cycloalkane/alkane feed employing solvent mixture
    Patent number: 4944849
    Abstract: A mixture of (a) at least one saturated C5-C9 alcohol (preferably cyclohexanol) and (b) at least one sulfolane (preferably unsubstituted sulfolane, cyclotetramethylene sulfone) is used as solvent in the extractive distillation of a feed mixture of cycloalkane(s) in particular cyclohexane) and close-boiling alkane(s). A novel composition of matter contains (a) and (b), as defined above, and optionally also (c) water.
    Type: Grant
    Filed: July 12, 1989
    Date of Patent: July 31, 1990
    Assignee: Phillips Petroleum Company
    Inventor: Fu Ming Lee
  • Catalysts for oxidation of carbon monoxide
    Patent number: 4943550
    Abstract: In a process for preparing a reduced material comprising (a) alumina and/or magnesium aluminate as support material, (b) platinum metal and (c) an iron component, the improvement comprises: (1) treating the reduced composition of matter with an acidic liquid; (2) heating the acid-treated material, and (3) treating the material obtained in step (2) with a reducing gas. The prepared material is used as a catalyst for converting CO and O.sub.2 to CO.sub.2.
    Type: Grant
    Filed: June 14, 1989
    Date of Patent: July 24, 1990
    Assignee: Phillips Petroleum Company
    Inventors: John H. Kolts, Scott H. Brown, Patricia A. Tooley
  • Hydrodemethylation of neohexane
    Patent number: 4940829
    Abstract: Neopentane is prepared by reaction of neohexane with free hydrogen, in the presence of the supported palladium catalyst, which preferably additionally contains nickel and/or cobalt.
    Type: Grant
    Filed: October 18, 1988
    Date of Patent: July 10, 1990
    Assignee: Phillips Petroleum Company
    Inventor: Charles A. Drake
  • Catalyst for oxidation of carbon monoxide
    Patent number: 4940686
    Abstract: A composition comprises (a) at least one vanadium oxide as support material, (b) platinum metal, and (c) iron oxide and/or metal. This composition is used as catalyst in the reaction of carbon monoxide and oxygen to carbon dioxide. Preferably, the composition is made by a preparation process comprising the steps of impregnating the support material with an aqueous acid solution (preferably concentrated nitric acid) of Pt and Fe compounds.
    Type: Grant
    Filed: August 7, 1989
    Date of Patent: July 10, 1990
    Assignee: Phillips Petroleum Company
    Inventors: Patricia A. Tooley, John H. Kolts
  • Synthesis of esters from alcohols containing carbon monoxide as an impurity
    Patent number: 4939292
    Abstract: Esters are prepared by contacting, under suitable reaction conditions, a feed stream comprising a primary alcohol of 1-4 carbon atoms per molecule (preferably methanol, ethanol) and carbon monoxide with a catalyst composition comprising (a) copper or a copper compound (preferably CuO), (b) zinc oxide, (c) at least one metal or compound of at least one metal selected from the group consisting of cobalt, ruthenium, iridium, platinum, molybdenum, and rhenium (preferably cobalt and/or rhenium) and, optionally, (d) alumina.
    Type: Grant
    Filed: October 2, 1985
    Date of Patent: July 3, 1990
    Assignee: Phillips Petroleum Company
    Inventors: David J. Elliott, Filippo Pennella
  • Absorption and desorption of carbon dioxide
    Patent number: 4937059
    Abstract: A process for absorption and subsequent desorption of carbon dioxide comprises contacting a CO.sub.2 -containing gas with a solid sorbent comprising alkali metal oxide and/or hydroxide (preferably LiOH) and lanthanum oxide. The used solid sorbent can be regenerated by heating, so as to desorb absorbed carbon dioxide.
    Type: Grant
    Filed: September 26, 1988
    Date of Patent: June 26, 1990
    Assignee: Phillips Petroleum Company
    Inventors: John H. Kolts, James B. Kimble, Donald H. Kubicek
  • Reactivation of metal-contaminated cracking catalysts
    Patent number: 4935121
    Abstract: A process for reactivating a spent, metal-contaminated zeolite-containing cracking catalyst composition comprises the substantially simultaneous contacting with a fluorine compound (preferably HH.sub.4 F) and a metals passivating agent (preferably a compound of Sb or Ca). The thus reactivated cracking catalyst composition is employed in a catalytic cracking process.
    Type: Grant
    Filed: June 22, 1989
    Date of Patent: June 19, 1990
    Assignee: Phillips Petroleum Company
    Inventors: Chia-Min Fu, Michael K. Maholland, Richard E. Lowery
  • Sorption of trialkyl arsines
    Patent number: 4933159
    Abstract: Trialkyl arsines are removed from fluids, in particular gases, by contacting with a solid sorbent material containing at least one silver component (preferably nitrate and/or oxide and/or metal) and a support material (preferably alumina, fluorided alumina, silica, fluorided silica, titania or magnesium aluminate).
    Type: Grant
    Filed: November 2, 1989
    Date of Patent: June 12, 1990
    Assignee: Phillips Petroleum Company
    Inventors: Gerhard Nowack, Patricia A. Tooley, Joseph B. Cross, Marvin M. Johnson, Ted Cymbaluk
  • Treatment of spent cracking catalysts
    Patent number: 4929336
    Abstract: A process for reactivating a spent, metal-contaminated zeolite-containing catalytic cracking catalyst composition comprises contacting the spent catalyst composition with an acidified aqueous NH.sub.4 NO.sub.3 solution, thereafter with a suitable fluorine compound (preferably dissolved NH.sub.4 F), and, optionally, additionally with an antimony compound. The thus prepared reactivated cracking catalyst composition is used in a process for catalytically cracking a liquid hydrocarbon-containing feed.
    Type: Grant
    Filed: October 12, 1989
    Date of Patent: May 29, 1990
    Assignee: Phillips Petroleum Company
    Inventors: Richard E. Lowery, Chia M. Fu, Michael K. Maholland
  • Dehydrogenation process
    Patent number: 4926005
    Abstract: In a process for dehydrogenating alkanes having 2-5 carbon atoms per molecule in the presence of steam and a catalyst composition comprising Group IIA and/or IIB metal aluminate, Group VIII metal(s) and Group IVA metal compound(s), the improvement comprises the step of pretreating the alkane containing feed with a material comprising a Group IIA and/or Group IIB metal aluminate under non-dehydrogenating conditions.
    Type: Grant
    Filed: May 17, 1989
    Date of Patent: May 15, 1990
    Assignee: Phillips Petroleum Company
    Inventors: Michael E. Olbrich, Dwight L. McKay, Dean P. Montgomery, deceased, by B. Jean, administratrix Montgomery
  • Catalyst for the oxidation of carbon monoxide
    Patent number: 4921830
    Abstract: A composition of matter comprising zirconia and Pt and/or Pd is prepared by a process comprising one step of treating Pt- and/or Pd-impregnated zirconia with a reducing gas, in particular free hydrogen, at a temperature of about 100.degree.-600.degree. C. Another composition of matter comprising zirconia and Pt and/or Pd is prepared by a process comprising the steps of impregnating a porous ceramic material (preferably a monolith) with a Zr compound, substantially decomposing the Zr compound to ZrO.sub.2, impregnating with Pt and/or Pd, drying/calcining, and reducing with a reducing gas, in particular free hydrogen, at a temperature of about 0.degree.-400.degree. C. Both compositions of matter are used as catalysts in a process for oxidizing CO to CO.sub.2, e.g. in a CO.sub.2 laser. Preferably, at least one iron compound is present as copromoter in these compositions of matter.
    Type: Grant
    Filed: April 13, 1988
    Date of Patent: May 1, 1990
    Assignee: Phillips Petroleum Company
    Inventor: John H. Kolts
  • Extractive distillation of hydrocarbons employing solvent mixture
    Patent number: 4921581
    Abstract: An extractive distillation process for separating at least one cycloalkane from at least one close-boiling alkane employs as solvent a mixture of (a) at least one saturated C5-C9 alcohol (preferably cyclohexanol) and (b) at least one glycol compound (preferably tetraethylene glycol).
    Type: Grant
    Filed: May 26, 1989
    Date of Patent: May 1, 1990
    Assignee: Phillips Petroleum Company
    Inventors: Fu M. Lee, Ronald E. Brown
  • Catalyst for the oxidation of carbon monoxide
    Patent number: 4920088
    Abstract: A composition of matter comprising titania and Pt and/or Pd is prepared by a process comprising one step of heating Pt and/or Pd/impregnated titania with a reducing gas, in particular free hydrogen, at a temperature of about 300.degree.-800.degree. C. Another composition of matter comprising titania and Pt and/or Pd is prepared by a process comprising the steps of coating a porous ceramic material (preferably a monolith) with colloidal TiO.sub.2, drying, impregantion with Pt and/or Pd, drying/calcining, and reducing with a reducing gas, in particular free hydrogen, at a temperature of about 0.degree.-300.degree. C. Both compositions of matter are used as a catalyst in a process for oxidizing CO to CO.sub.2, e.g., in a CO.sub.2 laser.
    Type: Grant
    Filed: May 6, 1988
    Date of Patent: April 24, 1990
    Assignee: Phillips Petroleum Company
    Inventor: John W. Kolts
  • Unclouded metals passivation additive
    Patent number: 4919840
    Abstract: Unclouded solutions of antimony hydrocarbylthiolate suitable for metals passivation are produced utilizing an amine. In one embodiment of the invention the amine is included with the antimony oxide and hydroxyhydrocarbylthiol reactants to produce the passivating agent. In another embodiment of the invention, the metals passivation additive is produced by combining antimony oxide with a hydroxyhydrocarbylthiol to produce a reaction mixture which is thereafter contacted with an amine. The resulting product is useful for the passivation of metals deposited on cracking catalysts.
    Type: Grant
    Filed: February 16, 1989
    Date of Patent: April 24, 1990
    Assignee: Phillips Petroleum Company
    Inventor: Ernest B. Boston
  • Catalytic oxidation of carbon monoxide
    Patent number: 4911904
    Abstract: A composition of matter comprising hydrotalcite and Pt and/or Pd has been prepared by a process comprising the steps of impregnating hydrotalcite with Pt and/or Pd, followed by calcining and, preferably treatment with a reducing gas. The above composition of matter is used as catalyst in a process for oxidizing CO to CO.sub.2, e.g., in a CO.sub.2 laser.
    Type: Grant
    Filed: February 26, 1988
    Date of Patent: March 27, 1990
    Assignee: Phillips Petroleum Company
    Inventors: Gary A. Delzer, John H. Kolts
  • Dehydrogenation process
    Patent number: 4902849
    Abstract: In a process for dehydrogenating alkanes containing 2-5 carbon atoms per molecule in the presence of steam and a catalyst composition comprising IIA and/or IIB metal aluminate, a noble metal and a Group IVA metal oxide, the improvement comprises the step of contacting the catalyst composition, after it has been oxidatively regenerated, with a reducing gas comprising free hydrogen and steam.
    Type: Grant
    Filed: February 6, 1989
    Date of Patent: February 20, 1990
    Assignee: Phillips Petroleum Company
    Inventors: Dwight L. McKay, Michael E. Olbrich
  • Catalyst for oxidation of carbon monoxide
    Patent number: 4902660
    Abstract: A composition of matter comprising hydrotalcite Pt and Fe has been prepared by a process comprising the steps of impregnating hydrotalcite with Pt and Fe, followed by calcining and treatment with a reducing gas. The above composition of matter is used as catalyst in a process for oxidizing CO to CO.sub.2, e.g., in a CO.sub.2 laser. A process for preparing a composition of matter comprises the step of impregnating hydrotalcite with Pt and/or Pd at a pH of at least about 5.
    Type: Grant
    Filed: January 30, 1989
    Date of Patent: February 20, 1990
    Assignee: Phillips Petroleum Company
    Inventors: Gary A. Delzer, John H. Kolts
  • Preparation of hydrotreating catalyst from spent catalyst
    Patent number: 4888316
    Abstract: An active hydrotreating catalyst composition is prepared by a process comprising the steps of (a) grinding a spent hydrotreating catalyst containing carbonaceous deposits, (b) mixing the ground spent catalyst with an alumina-containing material (preferably alumina), (c) shaping (preferably extruding) the mixture of ground spent catalyst and alumina-containing material and (d) heating the shaped mixture so as to burn off carbonaceous deposits on the ground spent catalyst component. The thus-prepared active hydrotreating catalyst is used in a process for hydrotreating hydrocarbon containing feed streams (oils) which contain metal impurities.
    Type: Grant
    Filed: November 21, 1988
    Date of Patent: December 19, 1989
    Assignee: Phillips Petroleum Company
    Inventors: Lloyd E. Gardner, Dennis R. Kidd
  • Oligomerization of olefins
    Patent number: 4879425
    Abstract: A composition comprises a physical mixture of (i) and oxide of molybdenum and/or tungsten supported by a silica-containing material and (ii) a pillared interlayered clay. This composition is used as catalyst in the conversion of C.sub.2 -C.sub.4 monoolefins to C.sub.5 -C.sub.12 hydrocarbons.
    Type: Grant
    Filed: May 26, 1988
    Date of Patent: November 7, 1989
    Assignee: Phillips Petroleum Company
    Inventors: Simon G. Kukes, Robert L. Banks, Jesse R. Harris