Patents by Inventor Dominique Duer-Bert

Dominique Duer-Bert 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).

  • Process for manufacturing tetrafluoropropene
    Patent number: 11459285
    Abstract: A process for manufacturing tetrafluoropropene, including, alternately: at least one step of reacting a chlorinated compound with hydrofluoric acid in the gas phase, in the presence of a fluorination catalyst, the proportion of oxygen optionally present being less than 0.05 mol. % relative to the chlorinated compound; a step of regenerating the fluorination catalyst by bringing the fluorination catalyst into contact with a regeneration stream including an oxidizing agent. Also, equipment suitable for carrying out this process.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: October 4, 2022
    Assignee: ARKEMA FRANCE
    Inventors: Anne Pigamo, Laurent Wendlinger, Dominique Duer-Bert
  • PROCESS FOR MANUFACTURING TETRAFLUOROPROPENE
    Publication number: 20190152883
    Abstract: A process for manufacturing tetrafluoropropene, including, alternately: at least one step of reacting a chlorinated compound with hydrofluoric acid in the gas phase, in the presence of a fluorination catalyst, the proportion of oxygen optionally present being less than 0.05 mol. % relative to the chlorinated compound; a step of regenerating the fluorination catalyst by bringing the fluorination catalyst into contact with a regeneration stream including an oxidizing agent. Also, equipment suitable for carrying out this process.
    Type: Application
    Filed: January 17, 2019
    Publication date: May 23, 2019
    Applicant: Arkema France
    Inventors: Anne PIGAMO, Laurent Wendlinger, Dominique Duer-Bert