Patents Assigned to Occidental Chemical Corporation
  • Patent number: 12054444
    Abstract: A method of producing carbon tetrachloride, the method comprising the step of reacting chlorine with chloroform in the presence of electromagnetic radiation within a reaction mixture that includes the chlorine, the chloroform, and carbon tetrachloride, where the concentration of chloroform is less than 5000 ppm by weight relative to the weight of the reaction mixture, where the reaction mixture includes at least stoichiometric levels of chlorine relative to chloroform, where the electromagnetic radiation creates chloride radicals, and where the reaction mixture is well mixed.
    Type: Grant
    Filed: February 19, 2023
    Date of Patent: August 6, 2024
    Assignee: Occidental Chemical Corporation
    Inventors: Robert L. Zeller, Darrell Hollis, Keith S. Kramer, Brian Calderwood, Rodney L. Klausmeyer
  • Patent number: 11945761
    Abstract: A process of the type for producing 1,1,1,2,3-pentachloropropane by introducing 1,1,1,3-tetrachloropropane, chlorine, and Lewis acid catalyst, optionally in the presence of carbon tetrachloride, the improvement comprising introducing the Lewis acid as a slurry within a chlorinated hydrocarbon.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: April 2, 2024
    Assignee: OCCIDENTAL CHEMICAL CORPORATION
    Inventors: John L. Dawkins, Darrell Hollis, Keith S. Kramer, Brian Calderwood, Michael A. Garmon
  • Patent number: 11780792
    Abstract: A method of producing carbon tetrachloride includes providing a chloromethanes stream, combining the chloromethanes stream with chlorine and additional carbon tetrachloride to form a reaction mixture, wherein the reaction mixture includes at least stoichiometric levels of chlorine, introducing electromagnetic radiation to the reaction mixture and subjecting the reaction mixture to suitable reaction conditions to form product carbon tetrachloride, and collecting a product stream including the product carbon tetrachloride.
    Type: Grant
    Filed: January 10, 2020
    Date of Patent: October 10, 2023
    Assignee: Occidental Chemical Corporation
    Inventors: Robert L. Zeller, III, Darrell G. Hollis, Keith S. Kramer, Brian Calderwood, Rodney L. Klausmeyer, John L. Dawkins
  • Patent number: 11584703
    Abstract: A method of producing carbon tetrachloride, the method comprising the step of reacting chlorine with chloroform in the presence of electromagnetic radiation within a reaction mixture that includes the chlorine, the chloroform, and carbon tetrachloride, where the concentration of chloroform is less than 5000 ppm by weight relative to the weight of the reaction mixture, where the reaction mixture includes at least stoichiometric levels of chlorine relative to chloroform, where the electromagnetic radiation creates chloride radicals, and where the reaction mixture is well mixed.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: February 21, 2023
    Assignee: OCCIDENTAL CHEMICAL CORPORATION
    Inventors: Robert L. Zeller, Darrell Hollis, Keith S. Kramer, Brian Calderwood, Rodney L. Klausmeyer
  • Patent number: 11565988
    Abstract: A process for the manufacture of 1,1,3,3-tetrachloropropene, the process comprising dehydrochlorinating 1,1,1,3,3-pentachloropropane, where said step of dehydrochlorinating 1,1,1,3,3-pentachloropropane takes place in the presence of an oxidizing agent and in the presence of a Lewis acid, and where the oxidizing agent is chlorine and the Lewis acid is ferric chloride.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: January 31, 2023
    Assignee: Occidental Chemical Corporation
    Inventors: Rodney L. Klausmeyer, Darrell G. Hollis, Keith S. Kramer, John L. Dawkins, Derrek Rae Burrows
  • Patent number: 11104627
    Abstract: A process for the manufacture of 1,1,3,3-tetrachloropropene, the process comprising dehydrochlorinating 1,1,1,3,3-pentachloropropane.
    Type: Grant
    Filed: February 17, 2020
    Date of Patent: August 31, 2021
    Assignee: Occidental Chemical Corporation
    Inventors: Rodney L. Klausmeyer, Darrell G. Hollis, Keith S. Kramer, John L. Dawkins, Derrek Rae Burrows
  • Patent number: 10847825
    Abstract: A method of the type where a brine solution is converted to an alkali metal hydroxide solution within a diaphragm cell, and the resulting cell liquor from the diaphragm cell is introduced to one or more fuel cells for the conversion of the alkali metal hydroxide to form electricity, the improvement comprising regulating the conversion of alkali metal hydroxide within the fuel cell to a conversion of less than 90%, and then subsequently concentrating the alkali metal hydroxide concentration from the anolyte stream of the fuel cell.
    Type: Grant
    Filed: June 6, 2017
    Date of Patent: November 24, 2020
    Assignee: Occidental Chemical Corporation
    Inventors: Robert L. Zeller, Clifton T. Gonce
  • Patent number: 10787403
    Abstract: Methods for the manufacture of 1,1,1,2,3-pentachloropropane from 1,1,1,3-tetrachloropropane and chlorine are disclosed. Improved methods are provided for the manufacture of 1,1,2,3-tetrachloropropene from 1,1,1,2,3-pentachloropropane. Methods are also disclosed for the manufacture of 1,1,2,3-tetrachloropropene from 1,1,1,3-tetrachloropropane and chlorine and for the manufacture of 1,1,2,3-tetrachloropropene from carbon tetrachloride, ethylene, and chlorine.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: September 29, 2020
    Assignee: Occidental Chemical Corporation
    Inventors: Richard L. Wilson, Rodney L. Klausmeyer, John Lee Dawkins, Daniel D. Rohrback, James S. Strathe, Lloyd B. Branam
  • Patent number: 10787405
    Abstract: A method of producing carbon tetrachloride, the method comprising the step of reacting chlorine with chloroform in the presence of electromagnetic radiation within a reaction mixture that includes the chlorine, the chloroform, and carbon tetrachloride, where the concentration of chloroform is less than 5000 ppm by weight relative to the weight of the reaction mixture, where the reaction mixture includes at least stoichiometric levels of chlorine relative to chloroform, where the electromagnetic radiation creates chloride radicals, and where the reaction mixture is well mixed.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: September 29, 2020
    Assignee: Occidental Chemical Corporation
    Inventors: Robert L. Zeller, Darrell Hollis, Keith S. Kramer, Brian Calderwood, Rodney L. Klausmeyer
  • Patent number: 10787404
    Abstract: A process of the type for producing chlorinated propanes by reacting carbon tetrachloride with ethylene within a tank reactor that includes a liquid reaction mixture and a headspace above the reaction mixture wherein ethylene gas diffuses from the liquid reaction mixture into the headspace while agitating the reaction mixture, the improvement comprising transferring ethylene within the headspace back into the reaction mixture through a conduit within the mixing device that agitates the reaction mixture.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: September 29, 2020
    Assignee: Occidental Chemical Corporation
    Inventors: John L Dawkins, Darrell Hollis, Keith S. Kramer, Brian Calderwood
  • Patent number: 10562832
    Abstract: A process for the manufacture of 1,1,3,3-tetrachloropropene, the process comprising dehydrochlorinating 1,1,1,3,3-pentachloropropane.
    Type: Grant
    Filed: May 2, 2018
    Date of Patent: February 18, 2020
    Assignee: Occidental Chemical Corporation
    Inventors: Rodney L. Klausmeyer, Darrell G. Hollis, Keith S. Kramer, John L. Dawkins, Derrek Rae Burrows
  • Publication number: 20200036024
    Abstract: A method of the type where a brine solution is converted to an alkali metal hydroxide solution within a diaphragm cell, and the resulting cell liquor from the diaphragm cell is introduced to one or more fuel cells for the conversion of the alkali metal hydroxide to form electricity, the improvement comprising regulating the conversion of alkali metal hydroxide within the fuel cell to a conversion of less than 90%, and then subsequently concentrating the alkali metal hydroxide concentration from the anolyte stream of the fuel cell.
    Type: Application
    Filed: June 6, 2017
    Publication date: January 30, 2020
    Applicant: OCCIDENTAL CHEMICAL CORPORATION
    Inventors: Robert L. ZELLER, Cliff GONCE
  • Patent number: 10526261
    Abstract: Methods for the manufacture of 1,1,1,2,3-pentachloropropane from 1,1,1,3-tetrachloropropane and chlorine are disclosed. Improved methods are provided for the manufacture of 1,1,2,3-tetrachloropropene from 1,1,1,2,3-pentachloropropane. Methods are also disclosed for the manufacture of 1,1,2,3-tetrachloropropene from 1,1,1,3-tetrachloropropane and chlorine and for the manufacture of 1,1,2,3-tetrachloropropene from carbon tetrachloride, ethylene, and chlorine.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: January 7, 2020
    Assignee: Occidental Chemical Corporation
    Inventors: Richard L. Wilson, Rodney L. Klausmeyer, John Lee Dawkins, Daniel D. Rohrback, James S. Strathe, Lloyd B. Branam
  • Patent number: 10207970
    Abstract: Processes for isolating 1,1,1,2,3-pentachloropropane from a crude product stream containing the 1,1,1,2,3-pentachloropropane and ferric chloride. The processes may include deep distillation of the crude, treatment of the crude with a reagent that deactivates the ferric chloride followed by distillation on the deactivated crude stream, aqueous washing of the crude product stream to remove ferric chloride followed by distillation on the deactivated crude stream. Other embodiments simultaneously prepare 1,1,2,3-tetrachloroprene and 1,1,1,2,3-pentachloroprane.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: February 19, 2019
    Assignee: Occidental Chemical Corporation
    Inventors: John Lee Dawkins, Darrell G Hollis, Rodney L Klausmeyer, Keith S Kramer, Michael A Garmon
  • Patent number: 9981892
    Abstract: Methods for the manufacture of 1,1,1,2,3-pentachloropropane from 1,1,1,3-tetrachloropropane and chlorine are disclosed. Improved methods are provided for the manufacture of 1,1,2,3-tetrachloropropene from 1,1,1,2,3-pentachloropropane. Methods are also disclosed for the manufacture of 1,1,2,3-tetrachloropropene from 1,1,1,3-tetrachloropropane and chlorine and for the manufacture of 1,1,2,3-tetrachloropropene from carbon tetrachloride, ethylene, and chlorine.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: May 29, 2018
    Assignee: OCCIDENTAL CHEMICAL CORPORATION
    Inventors: Richard L. Wilson, Rodney L. Klausmeyer, John Lee Dawkins, Daniel D. Rohrback, James S. Strathe, Lloyd B. Branam
  • Patent number: 9969664
    Abstract: A process for the manufacture of 1,1,3,3-tetrachloropropene, the process comprising dehydrochlorinating 1,1,1,3,3-pentachloropropane.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: May 15, 2018
    Assignee: Occidental Chemical Corporation
    Inventors: Rodney L. Klausmeyer, Darrell G. Hollis, Keith S. Kramer, John L. Dawkins, Derrek Rae Burrows
  • Publication number: 20170174590
    Abstract: Processes for isolating 1,1,1,2,3-pentachloropropane from a crude product stream containing the 1,1,1,2,3-pentachloropropane and ferric chloride. The processes may include deep distillation of the crude, treatment of the crude with a reagent that deactivates the ferric chloride followed by distillation on the deactivated crude stream, aqueous washing of the crude product stream to remove ferric chloride followed by distillation on the deactivated crude stream. Other embodiments simultaneously prepare 1,1,2,3-tetrachloroprene and 1,1,1,2,3-pentachloroprane.
    Type: Application
    Filed: March 3, 2017
    Publication date: June 22, 2017
    Applicant: OCCIDENTAL CHEMICAL CORPORATION
    Inventors: John Lee DAWKINS, Darrell G HOLLIS, Rodney L KLAUSMEYER, Keith S KRAMER, Michael A GARMON
  • Patent number: 9650319
    Abstract: Methods for the manufacture of 1,1,1,2,3-pentachloropropane from 1,1,1,3-tetrachloropropane and chlorine are disclosed. Improved methods are provided for the manufacture of 1,1,2,3-tetrachloropropene from 1,1,1,2,3-pentachloropropane. Methods are also disclosed for the manufacture of 1,1,2,3-tetrachloropropene from 1,1,1,3-tetrachloropropane and chlorine and for the manufacture of 1,1,2,3-tetrachloropropene from carbon tetrachloride, ethylene, and chlorine.
    Type: Grant
    Filed: August 17, 2015
    Date of Patent: May 16, 2017
    Assignee: OCCIDENTAL CHEMICAL CORPORATION
    Inventors: Richard L. Wilson, Rodney L. Klausmeyer, John Lee Dawkins, Daniel D. Rohrback, James S. Strathe, Lloyd B. Branam
  • Publication number: 20170081263
    Abstract: A process for the manufacture of 1,1,3,3-tetrachloropropene, the process comprising dehydrochlorinating 1,1,1,3,3-pentachloropropane.
    Type: Application
    Filed: May 14, 2015
    Publication date: March 23, 2017
    Applicant: OCCIDENTAL CHEMICAL CORPORATION
    Inventors: Rodney L. KLAUSMEYER, Darrell G. HOLLIS, Keith S. KRAMER, John L. DAWKINS, Derrek Rae BURROWS
  • Patent number: 9598337
    Abstract: Processes for isolating 1,1,1,2,3-pentachloropropane from a crude product stream containing the 1,1,1,2,3-pentachloropropane and ferric chloride. The processes may include deep distillation of the crude, treatment of the crude with a reagent that deactivates the ferric chloride followed by distillation on the deactivated crude stream, aqueous washing of the crude product stream to remove ferric chloride followed by distillation on the deactivated crude stream. Other embodiments simultaneously prepare 1,1,2,3-tetrachloroprene and 1,1,1,2,3-pentachloroprane.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: March 21, 2017
    Assignee: OCCIDENTAL CHEMICAL CORPORATION
    Inventors: John Lee Dawkins, Darrell Gene Hollis, Rodney L. Klausmeyer, Keith S. Kramer, Michael Andrew Garmon