Patents by Inventor Richard E. Lowery

Richard E. Lowery has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Potassium carbonate supports, catalysts, and olefin dimerization processes therewith
    Patent number: 5237117
    Abstract: Catalyst supports, catalyst systems, methods for the preparation thereof, and dimerization process therewith are provided catalyst supports are extruded from a thick paste of potassium carbonate and water catalyst systems comprise at least one elemental alkali metal deposited on the catalyst support. Optionally, the catalyst system further comprises at least one promoter.
    Type: Grant
    Filed: October 30, 1992
    Date of Patent: August 17, 1993
    Assignee: Phillips Petroleum Company
    Inventors: Paul F. Schubert, Ralph E. Bonnell, Norman L. Freeman, Jr., Denton C. Fentress, Kent E. Mitchell, Richard E. Lowery, Dodnald H. Kubicek
  • Process for removing sulfur compounds
    Patent number: 5219542
    Abstract: A novel composition comprising zinc oxide, zinc phosphate and, optionally, alumina is described which can effectively be used to remove sulfur compounds from a fluid stream by contacting said fluid stream under suitable absorption conditions with the novel composition. A novel method of producing an absorption composition is described where the steps include the formation of a composition comprising zinc oxide, zinc phosphate and, optionally, alumina.
    Type: Grant
    Filed: July 10, 1991
    Date of Patent: June 15, 1993
    Assignee: Phillips Petroleum Company
    Inventors: Richard E. Lowery, Donald R. Engelbert
  • Continuous antimony pentoxide production
    Patent number: 5213785
    Abstract: This invention concerns an improved means of oxidizing aqueous dispersions of antimony trioxide to colloidal hydrous antimony pentoxide in a continuous flow system. The oxidant is hydrogen peroxide and the continuous flow system nominally consists of a static mixer and a tubular reactor.
    Type: Grant
    Filed: October 21, 1991
    Date of Patent: May 25, 1993
    Assignee: Phillips Petroleum Company
    Inventors: Denton C. Fentress, Kent E. Mitchell, Don W. Godbehere, Larry S. Maddox, Richard E. Lowery, Howard F. Efner
  • Reactivation and passivation of spent cracking catalysts
    Patent number: 5188995
    Abstract: A spent metal-contaminated zeolite-containing catalytic cracking catalyst is reactivated by a process which comprises contacting the spent catalyst with at least one dissolved carboxylic acid and at least one antimony compound.
    Type: Grant
    Filed: March 24, 1992
    Date of Patent: February 23, 1993
    Assignee: Phillips Petroleum Company
    Inventors: Michael K. Maholland, Chia-Min Fu, Richard E. Lowery
  • Preparation of alkaline earth oxide catalysts
    Patent number: 5153165
    Abstract: Preparation of alkali metal/alkaline earth metal oxide catalyst on a refractory metal oxide support by using at least one suitable organic or inorganic acid. Catalysts prepared by this method have and exhibit superior catalytic activity.
    Type: Grant
    Filed: May 9, 1991
    Date of Patent: October 6, 1992
    Assignee: Phillips Petroleum Company
    Inventors: Richard E. Lowery, Jim L. Wright
  • Reactivation of spent, metal-containing cracking catalysts
    Patent number: 5151391
    Abstract: A spent metal contaminated zeolite-containing catalytic cracking catalyst composition is reactivated by a process which comprises contacting with an aqueous solution of HC1 and/or HNO.sub.3 and/or H.sub.2 SO.sub.4. The thus reactivated catalyst composition can be employed in a catalytic cracking process.
    Type: Grant
    Filed: February 15, 1991
    Date of Patent: September 29, 1992
    Assignee: Phillips Petroleum Company
    Inventors: Chia-Min Fu, Michael K. Maholland, Richard E. Lowery
  • Reactivation of spent cracking catalysts
    Patent number: 5141904
    Abstract: A spent metal contaminated zeolite-containing catalytic cracking catalyst composition is reactivated by a process which comprises contacting with an aqueous solution of at least one carboxylic acid (preferably at least one of formic acid, acetic acid, citric acid and lactic acid). The thus reactivated catalyst composition can be employed in a catalytic cracking process.
    Type: Grant
    Filed: February 15, 1991
    Date of Patent: August 25, 1992
    Assignee: Phillips Petroleum Company
    Inventors: Donald H. Kubicek, Chia-Min Fu, Richard E. Lowery, Michael K. Maholland
  • Process for making magnesium oxide spheres
    Patent number: 5134103
    Abstract: A method to prepare spherical particles comprising magnesium oxide and magnesium hydroxide, wherein said magnesium hydroxide acts as a binder and no extraneous binder is present.
    Type: Grant
    Filed: February 4, 1991
    Date of Patent: July 28, 1992
    Assignee: Phillips Petroleum Company
    Inventors: Richard E. Lowery, James L. Wright
  • 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
  • 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
  • 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
  • Rapidly dispersible compositions of antimony pentoxide
    Patent number: 4804496
    Abstract: A process is disclosed for producing a powdered antimony pentoxide composition that rapidly disperses on contact with water. The process comprises spray drying the antimony sol at a temperature of from 180.degree. to 210.degree. F.
    Type: Grant
    Filed: March 16, 1987
    Date of Patent: February 14, 1989
    Assignee: Phillips Petroleum Company
    Inventors: Richard E. Lowery, Denton C. Fentress, Don W. Godbehere
  • Production of antimony organophosphorodithioates
    Patent number: 4394323
    Abstract: The efficiency of salt-forming reactions between antimony compounds and hydrocarbylphosphorodithioic acids is improved by adding the antimony compounds in small increments.
    Type: Grant
    Filed: April 1, 1981
    Date of Patent: July 19, 1983
    Assignee: Phillips Petroleum Company
    Inventors: Richard E. Lowery, Bruce W. Gordon, Barry N. Steger