Patents by Inventor Franz Hintermüller

Franz Hintermüller 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).

  • Water recycling in a melamine production process
    Patent number: 9206140
    Abstract: The present invention relates to a method for recycling water in a melamine production process comprising—a wet process comprising the steps of aqueous treatment of a melamine melt from a melamine synthesis plant with an aqueous alkali containing solution and crystallization for producing solid melamine and a triazine containing alkaline mother liquor,—a wastewater treatment process comprising the steps of thermal treatment of said triazine containing alkaline motor liquor, and—a recycling process, whereby at least parts of the thermally treated alkaline mother liquor are being recycled to the wet process.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: December 8, 2015
    Assignee: Casale SA
    Inventors: Arne Schadt, Robert Schlesinger, Gregor Demel, Christoph Neumüller, Franz Hintermüller
  • Water Recycling in a Melamine Production Process
    Publication number: 20120271050
    Abstract: The present invention relates to a method for recycling water in a melamine production process comprising—a wet process comprising the steps of aqueous treatment of a melamine melt from a melamine synthesis plant with an aqueous alkali containing solution and crystallization for producing solid melamine and a triazine containing alkaline mother liquor,—a wastewater treatment process comprising the steps of thermal treatment of said triazine containing alkaline motor liquor, and—a recycling process, whereby at least parts of the thermally treated alkaline mother liquor are being recycled to the wet process.
    Type: Application
    Filed: October 8, 2010
    Publication date: October 25, 2012
    Applicant: BOREALIS AGROLINZ MELAMINE GMBH
    Inventors: Arne Schadt, Robert Schlesinger, Gregor Demel, Christoph Neumüller, Franz Hintermüller