Patents by Inventor Gerhard Honecker

Gerhard Honecker 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).

  • Preparation of chromium(III) oxide
    Patent number: 4741895
    Abstract: A process for the preparation of chromium(III) oxide by decomposing hydrated ammonium dichromate at elevated temperatures, an apparatus for carrying out this process and the use of the chromium(III) oxide thus prepared as a starting material for the synthesis of chromium dioxide.
    Type: Grant
    Filed: October 17, 1986
    Date of Patent: May 3, 1988
    Assignee: BASF Aktiengsellschaft
    Inventors: Norbert Mueller, Bernhard Boettcher, Manfred Ohlinger, Helmut Reinicke, Gerhard Honecker
  • Reducing corrosion in reactors used for the synthesis of chromium dioxide
    Patent number: 4084936
    Abstract: In order to reduce corrosion of the inside walls of a reactor made of iron or an iron alloy and used for the synthesis of chromium dioxide by hydrothermal conversion of chromium(VI) oxide with chromium oxides of lower valency, lead or bismuth is added at those points of the reactor at which an aqueous phase occurs during conversion and which do not contact the chromium oxides to be converted. The lead or bismuth may be used in metallic form or in the form of their oxides, hydroxides or salts.
    Type: Grant
    Filed: July 6, 1976
    Date of Patent: April 18, 1978
    Assignee: BASF Aktiengesellschaft
    Inventors: Manfred Ohlinger, Gerhard Wagner, Gerhard Honecker, Heinz Stritzinger, Heinz Spaehn