Patents Assigned to KSE, Inc.
  • Patent number: 11708343
    Abstract: A process for carboxylation of a furoate slurry to produce FDCA, especially 2,5-FDCA, includes the steps of: feeding a slurry containing a suspension fluid, furoate, a surfactant and an alkali metal carbonate to a carboxylation reactor; and feeding a flow of CO2 to the carboxylation reactor at flow conditions sufficient to suspend the slurry in the reactor and react the furoate with CO2 to form 2,5-FDCA. A fully integrated process is also disclosed.
    Type: Grant
    Filed: July 16, 2021
    Date of Patent: July 25, 2023
    Assignee: KSE, Inc.
    Inventors: James R. Kittrell, Carl R. Dupre, Keith D. Kittrell, Leonard T. McDonald, Jeffrey A. Kittrell
  • Publication number: 20230020051
    Abstract: A process for carboxylation of a furoate slurry to produce FDCA, especially 2,5-FDCA, includes the steps of: feeding a slurry containing a suspension fluid, furoate, a surfactant and an alkali metal carbonate to a carboxylation reactor; and feeding a flow of CO2 to the carboxylation reactor at flow conditions sufficient to suspend the slurry in the reactor and react the furoate with CO2 to form 2,5-FDCA. A fully integrated process is also disclosed.
    Type: Application
    Filed: July 16, 2021
    Publication date: January 19, 2023
    Applicant: KSE, Inc.
    Inventors: James R. Kittrell, Carl R. Dupre, Keith D. Kittrell, Leonard T. McDonald, Jeffrey A. Kittrell
  • Patent number: 7348288
    Abstract: A process comprises passing a contaminated gaseous stream through a photocatalytic stage and, thereafter, through a catalytic stage.
    Type: Grant
    Filed: October 6, 2000
    Date of Patent: March 25, 2008
    Assignee: KSE Inc.
    Inventor: James R. Kittrell
  • Patent number: 6596664
    Abstract: In accordance with the present invention, a catalyst is described which comprises at least one metal selected from the group consisting of copper, zinc, iron, tungsten, molybdenum, and chromium distributed over a catalyst support comprising a material containing at least one of silicon, titanium, zirconium, magnesium, aluminum, and activated carbon. The catalyst is used to remove phosgene from a contaminated gas stream and/or reduce or eliminate phosgene from an effluent of a previously treated gas stream. At least one metal in the catalyst of the present invention is preferably present in an amount from about 0.001 wt % to about 15 wt %. When more than one metal is present, the combined metals preferably do not exceed 20 wt %. Catalysts in accordance with the present invention may be used as photocatalysts. Processes for using the catalysts and photocatalysts of the present invention are also described.
    Type: Grant
    Filed: March 21, 2002
    Date of Patent: July 22, 2003
    Assignee: KSE, Inc.
    Inventors: James R. Kittrell, David A. Gerrish, Michael C. Milazzo
  • Patent number: 6464951
    Abstract: In accordance with the present invention, a catalyst is described which comprises at least one metal selected from the group consisting of copper, zinc, iron, tungsten, molybdenum, and chromium distributed over a catalyst support comprising a material containing at least one of silicon, titanium, zirconium, magnesium, aluminum, and activated carbon. The catalyst is used to remove phosgene from a contaminated gas stream and/or reduce or eliminate phosgene from an effluent of a previously treated gas stream. At least one metal in the catalyst of the present invention is preferably present in an amount from about 0.001 wt % to about 15 wt %. When more than one metal is present, the combined metals preferably do not exceed 20 wt %. Catalysts in accordance with the present invention may be used as Photocatalysts. Processes for using the catalysts and Photocatalysts of the present invention are also described.
    Type: Grant
    Filed: April 20, 2002
    Date of Patent: October 15, 2002
    Assignee: KSE, Inc.
    Inventors: James R. Kittrell, David A. Gerrish, Michael C. Milazzo
  • Publication number: 20020141923
    Abstract: In accordance with the present invention, a catalyst is described which comprises at least one metal selected from the group consisting of copper, zinc, iron, tungsten, molybdenum, and chromium distributed over a catalyst support comprising a material containing at least one of silicon, titanium, zirconium, magnesium, aluminum, and activated carbon. The catalyst is used to remove phosgene from a contaminated gas stream and/or reduce or eliminate phosgene from an effluent of a previously treated gas stream. At least one metal in the catalyst of the present invention is preferably present in an amount from about 0.001 wt % to about 15 wt %. When more than one metal is present, the combined metals preferably do not exceed 20 wt %. Catalysts in accordance with the present invention may be used as photocatalysts. Processes for using the catalysts and photocatalysts of the present invention are also described.
    Type: Application
    Filed: March 21, 2002
    Publication date: October 3, 2002
    Applicant: KSE, INC.
    Inventors: James R. Kittrell, David A. Gerrish, Michael C. Milazzo
  • Patent number: 6221259
    Abstract: A process and catalyst for the conversion of contaminants in an oxygen containing contaminated stream comprises passing the oxygen containing contaminated stream over a photocatalyst comprising titanium, zirconium and silica while irradiating the foregoing catalyst with ultraviolet light.
    Type: Grant
    Filed: March 8, 1999
    Date of Patent: April 24, 2001
    Assignee: KSE Inc.
    Inventor: James R. Kittrell
  • Patent number: 6179972
    Abstract: A process comprises passing a contaminated gaseous stream through a photocatalytic stage and, thereafter, through a catalytic stage.
    Type: Grant
    Filed: June 2, 1999
    Date of Patent: January 30, 2001
    Assignee: KSE, Inc.
    Inventor: James R. Kittrell
  • Patent number: 6179971
    Abstract: A process and apparatus for the oxidation of gaseous contaminants for the control of air pollution, comprises a two stage process comprising a photolytic stage followed by a photocatalytic stage.
    Type: Grant
    Filed: April 30, 1999
    Date of Patent: January 30, 2001
    Assignee: KSE, Inc.
    Inventors: James R. Kittrell, David A. Gerrish
  • Patent number: 5340918
    Abstract: A copolymer of maleic anhydride and an alkyl vinyl ether is stabilized by contacting same with a non-reactive substantially moisture free gas at a temperature of from about 30.degree.-100.degree. C. for from about 0.5-24 hours. The copolymer is preferably prepared by reacting together maleic anhydride and an alkyl vinyl ether in the presence of a free radical initiator.
    Type: Grant
    Filed: September 14, 1993
    Date of Patent: August 23, 1994
    Assignee: KSE Inc.
    Inventors: James R. Kittrell, Charles W. Quinlan
  • Patent number: 5189122
    Abstract: A copolymer of maleic anhydride and an alkyl vinyl ether is prepared with substantially reduced benzene content by first contacting the alkyl vinyl ether with activated charcoal and then reacting together the charcoal treated alkyl vinyl ether and maleic anhydride in the presence of a free radical initiator.
    Type: Grant
    Filed: July 13, 1992
    Date of Patent: February 23, 1993
    Assignee: KSE Inc.
    Inventors: James R. Kittrell, Charles W. Quinlan