Patents by Inventor Achim Schaadt

Achim Schaadt 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 POLYOXYMETHYLENE DIMETHYL ETHERS
    Publication number: 20230278943
    Abstract: The present invention relates to a process for preparing polyoxymethylene dimethyl ethers, comprising the following steps: reaction of formaldehyde and methylal (OME1) in a reactor R1 to obtain a product mixture, distillative separation of the product mixture in a distillation unit D1 into a top stream which contains OME1, OME2, formaldehyde, methanol and water, and a bottom stream which contains OME?3, mixing of the top stream drawn off from the distillation unit D1 with a methanol-containing stream, treatment of the mixture in a reactive distillation unit RD2 to form a top stream containing methylal and a water-containing bottom stream, introduction of the bottom stream drawn off from the distillation unit D1 into a distillation unit D3 and distillative separation of the polyoxymethylene dimethyl ethers.
    Type: Application
    Filed: July 12, 2021
    Publication date: September 7, 2023
    Inventors: Franz Mantei, Mohamed Ouda, Achim Schaadt
  • METHOD FOR PRODUCING POLYOXYMETHYLENE DIMETHYL ETHERS
    Publication number: 20220388935
    Abstract: The present invention relates to a method for producing polyoxymethylene dimethyl ether by introducing a formaldehyde source and at least one compound of the formula (I) H3C—O—R??(I) where R is H or —(CH2O)x—CH3 with x being 0 or 1 as reactants into a reactive distillation unit and reacting them to give polyoxymethylene dimethyl ether, wherein the method produces polyoxymethylene dimethyl ether exclusively in the reactive distillation unit.
    Type: Application
    Filed: May 18, 2020
    Publication date: December 8, 2022
    Inventors: Mohamed Ouda, Franz M. Mantei, Achim Schaadt
  • Catalyst comprising fluorinated metal oxide, manufacture process and hydrogenation process
    Patent number: 10549269
    Abstract: A process for the manufacture of a catalyst comprising a fluorinated metal oxide is provided. A catalyst comprising a fluorinated metal oxide is provided. A catalytic hydrogenation process is also provided.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: February 4, 2020
    Assignees: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., SOLVAY SA, Albert-Ludwigs-Universität Freiburg
    Inventors: Achim Schaadt, Ingo Krossing, Mathias Feinäugle, Valentin Dybbert, Harald Hillebrecht, Thilo Ludwig, Johannes Eicher, Elias Frei
  • CATALYST COMPRISING FLUORINATED METAL OXIDE, MANUFACTURE PROCESS AND HYDROGENATION PROCESS
    Publication number: 20170216830
    Abstract: A process for the manufacture of a catalyst comprising a fluorinated metal oxide is provided. A catalyst comprising a fluorinated metal oxide is provided. A catalytic hydrogenation process is also provided.
    Type: Application
    Filed: April 21, 2017
    Publication date: August 3, 2017
    Inventors: Achim Schaadt, Ingo Krossing, Mathias Hill, Valentin Dybbert, Harald Hillebrecht, Thilo Ludwig, Johannes Eicher, Elias Frei