Patents by Inventor Erich Scherf

Erich Scherf 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).

  • Patent number: 6419797
    Abstract: There is provided a process for producing Guerbet alcohols not containing any heavy metals or soaps, wherein primary and/or secondary alcohols having 2 to 30 carbon atoms are condensed at elevated temperature in the presence of alkaline catalysts and/or heavy metal catalysts while eliminating the reaction water, and the reaction product is immediately separated by distillation without any additional purification.
    Type: Grant
    Filed: February 11, 2000
    Date of Patent: July 16, 2002
    Assignee: Sasöl Germany GmbH
    Inventors: Erich Scherf, Hans-Jürgen Letsch, Clemens Schröder, Albert Thomas Herrmann
  • Patent number: 5859269
    Abstract: A process for the continuous production of monocarboxylic acids from the corresponding alcohols by alkali fusion wherein the oxidation is continuously accomplished in an extrusion reactor without addition of diluents and the alkali salts of the monocarboxylic acids are discharged from the reactor as a solid product and are directly neutralised with mineral acids. High-purity monocarboxylic acids are obtained after phase separation.
    Type: Grant
    Filed: June 14, 1996
    Date of Patent: January 12, 1999
    Assignee: RWE-DEA Aktiengesellschaft fur Mineraloel und Chemie
    Inventors: Albert Thomas Herrmann, Arnold Meyer, Erich Scherf, Clemens Schroder, Ansgar Reichenauer, Ernst Tonsen
  • Patent number: 5808158
    Abstract: A process for producing primary amines which comprises reacting primary alcohols branched in position 2 with ammonia in the presence of a metal catalyst/co-catalyst.
    Type: Grant
    Filed: May 9, 1996
    Date of Patent: September 15, 1998
    Assignee: RWE-DEA Aktiengesellschaft fur Mineraloel und Chemie
    Inventors: Martin Conrads, Albert Thomas Hermann, Erich Scherf, Arwed Wagner
  • Patent number: 4590289
    Abstract: The invention is directed to a process for the production of aluminium alcoholates by reacting aluminium in comminuted form with an excess of an aliphatic C.sub.3 to C.sub.10 alcohol in which the aluminium is supplied to the reactor from above and is brought into contact with an aluminium alcoholate/alcohol mixture above a perforated plate or grid tray (screen) in the reactor. The aluminium, or preferably a suspension of alcohol and finely divided aluminium, is supplied to the reactor and fed from above to a bubble bed made of a mixture of aluminium alcoholate and alcohol in the area of the perforated plate, whereby the mixture of aluminium alcoholate and alcohol in the reactor sump or overflowing in part is recycled to the reactor over the bubble bed and optionally, preferably with the aluminium suspension, returned from above to the reactor and in part is isolated. There is also described a reactor suitable for carrying out the process.
    Type: Grant
    Filed: November 29, 1983
    Date of Patent: May 20, 1986
    Assignee: Condea Chemie GmbH
    Inventors: Gert Albert, Manfred Kamps, Klaus Noweck, Ansgar Reichenauer, Erich Scherf, Udo Ziegler