Patents Represented by Attorney K. K. Brandes

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  • Extractive distillation of hydrocarbon mixtures
    Patent number: 5032232
    Abstract: Extractive distillation processes for separating aromatic hydrocarbon(s) or cycloalkane(s) or alkene(s) from close-boiling alkane(s) are carried out with a solvent including at least one N-alkyl-2-thiopyrrolidone compound, preferably N-methyl-2-thiopyrrolidone. Optionally, the solvent additionally contains a cosolvent, preferably tetraethylene glycol or N-(.beta.-mercaptoethyl)-2-pyrrolidone or unsubstituted sulfolane.
    Type: Grant
    Filed: October 31, 1990
    Date of Patent: July 16, 1991
    Assignee: Phillips Petroleum Company
    Inventors: Fu-Ming Lee, Ronald E. Brown, Marvin M. Johnson
  • Sorption of trialkyl arsines
    Patent number: 5024683
    Abstract: Trialky arsine(s) are removed from a fluid (e.g., a hydrocarbon-containing gas) by contacting the fluid with a sorbent material comprising (a) copper sulfide, preferably copper(I) sulfide, and (b) an inorganic support material, preferably zinc oxide and/or alumina.
    Type: Grant
    Filed: June 12, 1990
    Date of Patent: June 18, 1991
    Assignee: Phillips Petroleum Company
    Inventors: Patricia A. Tooley, Tin-Tack P. Cheung, Ted H. Cymbaluk, Gerhard P. Nowack, Marvin M. Johnson
  • Demetallization and passivation of spent cracking catalysts
    Patent number: 5021377
    Abstract: A process for reactivating a spent, metal-contaminated zeolite-containing catalytic cracking catalyst composition comprises partially demetallizing (preferably by chlorinating and washing) the spent catalytic cracking catalyst composition, and thereafter contacting it with at least one fluorine compound (preferably NH.sub.4 F) and at least one antimony compound. The thus reactivated catalytic cracking catalyst composition is employed in a catalytic cracking process.
    Type: Grant
    Filed: June 5, 1990
    Date of Patent: June 4, 1991
    Assignee: Phillips Petroleum Company
    Inventors: Michael K. Maholland, Chia-Min Fu, Richard E. Lowery, Donald H. Kubicek, Brent J. Bertus
  • Catalytic process for oxidation of carbon monoxide
    Patent number: 5017357
    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 reduced gas. The prepared material is used as a catalyst for converting CO and O.sub.2 to CO.sub.2.
    Type: Grant
    Filed: March 16, 1990
    Date of Patent: May 21, 1991
    Assignee: Phillips Petroleum Company
    Inventors: John H. Kolts, Patricia A. Tooley, Scott H. Brown, Patricia A. Tooley
  • Antifoulants comprising titanium for thermal cracking processes
    Patent number: 5015358
    Abstract: The formation of carbon on metals exposed to hydrocarbons in a thermal cracking process is reduced by contacting these metals with an antifoulant selected from the group consisting of a combination of titanium and tin and a combination of titanium and antimony.
    Type: Grant
    Filed: August 30, 1990
    Date of Patent: May 14, 1991
    Assignee: Phillips Petroleum Company
    Inventors: Larry E. Reed, Randall A. Porter
  • Preparation of thiolactams
    Patent number: 5003082
    Abstract: The reaction of lactams (preferably N-methyl-2-pyrrolidone) with hydrogen sulfide to thiolactams (preferably N-methyl-2-thiopyrrolidone) is conducted in the presence of a catalyst comprising an inorganic support material and a phosphorus and oxygen containing compounds.
    Type: Grant
    Filed: March 29, 1990
    Date of Patent: March 26, 1991
    Assignee: Phillips Petroleum Company
    Inventor: Alan D. Eastman
  • Preparation of catalyst for oxidation of carbon monoxide
    Patent number: 4994247
    Abstract: A composition of matter, effective as catalyst for CO oxidation with O.sub.2 at about 20.degree.-30.degree. C., comprising iridium metal, iron oxide and titania is prepared by a process comprising impregnating a titania-containing support material with at least one iron compound and at least one iridium carbonyl compound, drying the thus impregnated material, and treating it with a reducing gas (preferably H.sub.2).
    Type: Grant
    Filed: September 8, 1989
    Date of Patent: February 19, 1991
    Assignee: Phillips Petroleum Company
    Inventors: Patricia A. Tooley, John H. Kolts
  • Oxidative conversion of organic compounds
    Patent number: 4994598
    Abstract: A method for the oxidative conversion of feed organic compounds to product organic compounds, particularly, the conversion of toluene to bibenzyl and stilbene and the conversion of acetonitrile to acrylonitrile, in which the feed compounds are contacted with a free oxygen-containing gas and a contact material, comprising at least one Group IIA metal or lanthanum and oxygen; at least two Group IIA metals, Lanthanum Series metals, zinc, or titanium and oxygen; at least one Group IA metal, at least one Group IIA metal, Lanthanum Series metals, zinc or titanium and oxygen; at least one Group IA metal or Group IIA metal, phosphorous and oxygen; cobalt, at least one of zirconium, zinc, nickel, indium, lead or bismuth, phosphorous, at least one Group IA metal and oxygen; or cobalt, at least one Group IA metal, silicon and oxygen.
    Type: Grant
    Filed: February 22, 1990
    Date of Patent: February 19, 1991
    Assignee: Phillips Petroleum Company
    Inventors: James B. Kimble, John H. Kolts
  • Removal of trialkyl arsines from fluids
    Patent number: 4992620
    Abstract: Trialkyl arsines are removed from fluids, in particular gases, by contacting with a solid sorbent material containing at least one manganese oxide (preferably MnO.sub.2) and at least one Group IB metal oxide (preferably CuO). In a preferred feature, the used solid sorbent material is regenerated by oxidizing treatment, washing with an aqueous liquid, and drying.
    Type: Grant
    Filed: November 21, 1989
    Date of Patent: February 12, 1991
    Assignee: Phillips Petroleum Company
    Inventors: Gerhard P. Nowack, Marvin M. Johnson, Joseph B. Cross, Patricia A. Tooley, Ted H. Cymbaluk
  • Catalytic preparation of thiolactams
    Patent number: 4990628
    Abstract: The reaction of lactams (preferably N-methyl-2-pyrrolidone) with hydrogen sulfide to thiolactams (preferably N-methyl-2-thiopyrrolidone) is conducted in the presence of a catalyst comprising an alumina-supported Group VIII metal or Group VIII metal compound (preferably palladium metal/oxide and/or iron oxide).
    Type: Grant
    Filed: March 1, 1990
    Date of Patent: February 5, 1991
    Assignee: Phillips Petroleum Company
    Inventor: Alan D. Eastman
  • Oxidative methylation of organic compounds
    Patent number: 4982038
    Abstract: A method for the oxidative methylation of propylene to ethylene and butenes, isobutylene to isoprene, toluene to styrene and enthylbenzene and acetonitrile to acrylonitrile utilizing a series of contact materials comprising at least one Group IIA metal or lanthanum and oxygen; at least two Group IIA metals, Lanthanum Series metals, zinc, or titanium and oxygen, at least one Group IA metal, at least one Group IIA metal, Lanthanum Series metals, zinc or titanium and oxygen, at least one Group IA metal or Group IIA metal, phosphorous and oxygen, cobalt, at least one of zirconium, zinc, nickel, indium, lead or bismuth, phosphorous, at least one Group IA metal and oxygen, or cobalt, at least one Group IA metal, silicon and oxygen
    Type: Grant
    Filed: April 25, 1990
    Date of Patent: January 1, 1991
    Assignee: Phillips Petroleum Company
    Inventors: James B. Kimble, John H. Kolts
  • Sorption and detection of trialkyl arsines
    Patent number: 4971608
    Abstract: Trialkyl arsines are removed from fluids, in particular gases, by contacting with a solid sorbent material containing at least one gold component (preferably AuCl and/or AuCl.sub.3 and/or NH.sub.4 AuCl.sub.4) and a support material (preferably alumina and/or silica). This process can be used for colorimetrically detecting the presence of arsines in gases.
    Type: Grant
    Filed: December 5, 1989
    Date of Patent: November 20, 1990
    Assignee: Phillips Petroleum Company
    Inventors: Patricia A. Tooley, Gerhard P. Nowack
  • Preparation of thiolactams
    Patent number: 4956476
    Abstract: The reaction of lactams (preferably N-methyl-2-pyrrolidone) with hydrogen sulfide to thiolactams (preferably N-methyl-2-thiopyrrolidone) is conducted in the presence of a catalyst consisting essentially of alumina.
    Type: Grant
    Filed: March 1, 1990
    Date of Patent: September 11, 1990
    Assignee: Phillips Petroleum Company
    Inventors: Alan D. Eastman, Marvin M. Johnson, Richard D. Skinner
  • Catalyst composition for the oxidation of carbon monoxide
    Patent number: 4956330
    Abstract: A composition of matter comprises (a) a titania-containing support material, (b) platinum metal, (c) iron oxide, and (d) at least one alkali metal compound (preferably potassium compound). The composition of matter is used as catalyst in the reaction of carbon monoxide and free oxygen to carbon dioxide.
    Type: Grant
    Filed: June 19, 1989
    Date of Patent: September 11, 1990
    Assignee: Phillips Petroleum Company
    Inventors: David J. Elliott, John H. Kolts
  • Dehydrogenation process and catalyst
    Patent number: 4956515
    Abstract: C.sub.3 and/or C.sub.4 hydrocarbons (in particular propane and butanes) are converted to less saturated hydrocarbons (in particular ethylene and propylene) in the presence of a catalyst consisting essentially of either (a) zinc oxide and manganese oxide or (b) zinc oxide, manganese oxide and calcium oxide. Compositions of matter (a) and (b), as defined above, are provided in accordance with this invention.
    Type: Grant
    Filed: December 5, 1988
    Date of Patent: September 11, 1990
    Assignee: Phillips Petroleum Company
    Inventors: John H. Kolts, Gary A. Delzer
  • Separation of hydrocarbon mixtures
    Patent number: 4955468
    Abstract: An extractive distillation process for separating at least one cycloalkane or aromatic hydrocarbon from at least one close-boiling alkane employs as solvent at least one N-mercaptoalkyl-2-pyrrolidone, preferably N-(.beta.-mercaptoethyl)-2-pyrrolidone, either alone or in admixture with about 0.1-10 weight-% water.A liquid-liquid extraction process for separating at least one cycloalkane or aromatic hydrocarbon from at least one alkane employs as solvent at least one N-mercaptoalkyl-2-pyrrolidone, preferably N-(.beta.-mercaptoethyl)-2-pyrrolidone, either alone or in admixture with about 0.1-10 weight-% water.
    Type: Grant
    Filed: September 8, 1989
    Date of Patent: September 11, 1990
    Assignee: Phillips Petroleum Company
    Inventor: Fu M. Lee
  • Treatment of spent cracking catalysts
    Patent number: 4954244
    Abstract: A process for reactivating a spent, metal-contaminated zeolite-containing cracking catalyst composition comprises the sequential steps of contacting the catalyst composition with dissolved ammonium compound (preferably NH.sub.4 NO.sub.3), contacting with a fluorine compound (preferably NH.sub.4 F), and treatment with a passivating agent (preferably Mg, Ca, B, A, P and/or Sb). The reactivated cracking catalyst obtained by this reactivation process is employed in a catalytic cracking process.
    Type: Grant
    Filed: June 22, 1989
    Date of Patent: September 4, 1990
    Assignee: Phillips Petroleum Company
    Inventors: Chia-Min Fu, Michael K. Maholland
  • Oxidative methylation of organic compounds
    Patent number: 4950836
    Abstract: A method for the oxidative methylation of propylene to ethylene and butenes, isobutylene to isoprene, toluene to styrene and ethylbenzene and acetonitrile to acrylonitrile utilizing a series of contact materials comprising at least one Group IIA metal or lanthanum and oxygen; at least two Group IIA metals, Lanthanum Series metals, zinc, or titanium and oxygen, at least one Group IA metal, at least one Group IIA metal, Lanthanum Series metals, zinc or titanium and oxygen, at least one Group IA metal or Group IIA metal, phosphorous and oxygen, cobalt, at least one of zirconium, zinc, nickel, indium, lead or bismuth, phosphorous, at least one Group IA metal and oxygen, or cobalt, at least one Group IA metal, silicon and oxygen.
    Type: Grant
    Filed: April 13, 1988
    Date of Patent: August 21, 1990
    Assignee: Phillips Petroleum Company
    Inventors: James B. Kimble, John H. Kolts
  • Extractive distillation of alkane/cycloalkane feed employing mixed solvent
    Patent number: 4948470
    Abstract: A mixture of (a) at least one N-alkyl-2-pyrrolidone (preferably N-methyl-2-pyrrolidone) and (b) at least one sulfolane (preferably unsubstituted sulfolane) is used as solvent in the extractive distillation of 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
    Inventor: Fu M. Lee
  • Catalyst composition for oligomerization of olefins
    Patent number: 4948768
    Abstract: A composition comprises a physical mixture of (i) an 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 monolefins to c.sub.5 -C.sub.12 hydrocarbons.
    Type: Grant
    Filed: July 20, 1989
    Date of Patent: August 14, 1990
    Assignee: Phillips Petroleum Company
    Inventors: Simon G. Kukes, Jesse R. Harris, Robert L. Barks