Patents by Inventor Robert Katzer

Robert Katzer 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).

  • Method for the production of epichlorohydrin
    Patent number: 8481765
    Abstract: The invention relates to a method for the production of epichlorohydrin, wherein a chloropropane-containing ally chloride in excess is reacted in a first reaction stage with hydrogen peroxide. The non-reacted ally chloride is separated and returned to the reaction, wherein part of the separated ally chloride is added to a second reaction stage and reacted with hydrogen peroxide, wherein the hydrogen peroxide quantity is selected in the second reaction stage such that the ally chloride is largely reacted. The chloropropanes are separated from the reaction mixture of the second reaction stage by means of distillation and removed from the process.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: July 9, 2013
    Assignee: Momentive Specialty Chemicals Inc.
    Inventors: Willi Hofen, Claudia Brasse, Robert Franke, Robert Katzer
  • METHOD FOR THE PRODUCTION OF EPICHLOROHYDRIN
    Publication number: 20110054197
    Abstract: The invention relates too method for the production of epichlorohydrin, wherein a chloropropane-containing ally chloride in excess is reacted in a first reaction stage with hydrogen peroxide. The non-reacted ally chloride is separated and returned to the reaction, wherein part of the separated ally chloride is added to a second reaction stage and reacted with hydrogen peroxide, wherein the hydrogen peroxide quantity is selected in the second reaction stage such that the ally chloride is largely reacted. The chloropropanes are separated from the reaction mixture of the second reaction stage by means of distillation and removed from the process.
    Type: Application
    Filed: December 16, 2008
    Publication date: March 3, 2011
    Applicant: EVONIK DEGUSSA GMBH
    Inventors: Willi Hofen, Claudia Brasse, Robert Franke, Robert Katzer