Patents by Inventor Klaus Mainusch

Klaus Mainusch 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 the preparation of triethylamine
    Patent number: 4297512
    Abstract: An improved process for the preparation of triethylamine by gas phase catalytic hydrogenation of acetonitrile is disclosed, the improvement residing in employing as the catalyst a supported noble metal of Group VIII of the periodic system catalyst where the support comprises lithium aluminum spinel. The process can be carried out in the presence of up to 5% by weight of monoethylamine and/or diethylamine. The process is conducted at 80.degree.-115.degree. C. and under a pressure of 1 to 60 bars.
    Type: Grant
    Filed: August 22, 1979
    Date of Patent: October 27, 1981
    Assignee: EC Erdolchemie GmbH
    Inventors: Klaus Mainusch, Bernhard Schleppinghoff, Klaus Munter