Patents by Inventor Ulf BINDERNAGEL

Ulf BINDERNAGEL 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 PRODUCING METHIONINE
    Publication number: 20220048855
    Abstract: The present invention pertains to a method for producing methionine or salts or derivatives thereof from hydrogen cyanide (HCN), the method comprising a step of producing 2-hydroxy-4-(methylthio)butyronitrile (MMP-CN), or a crude product mixture comprising MMP-CN, by contacting a hydrogen cyanide (HCN) process gas mixture prepared according to the Andrussow process from methane, ammonia and oxygen, with 3-methylmercaptopropionaldehyde (MMP), wherein the HCN process gas mixture is obtained from the crude HCN process gas mixture by adjusting the amount of ammonia to between 20% (v/v) and 60% (v/v) of the amount of the ammonia in the crude HCN process gas mixture.
    Type: Application
    Filed: December 13, 2019
    Publication date: February 17, 2022
    Applicant: EVONIK OPERATIONS GMBH
    Inventors: Daniel SUDHOFF, Judith HIEROLD, Philipp ROTH, Imad MOUSSALLEM, Ulf BINDERNAGEL, Christian RENNER