Patents by Inventor Hendrik Schönfelder

Hendrik Schönfelder 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 iron pentacarbonyl
    Patent number: 7335343
    Abstract: Iron pentacarbonyl is prepared by reacting iron with carbon monoxide in suspension and in the presence of a mixture of alkali metal sulfide and sulfur as a catalyst.
    Type: Grant
    Filed: November 22, 2004
    Date of Patent: February 26, 2008
    Assignee: Basf Aktiengesellschaft
    Inventors: Gabriele Unger, Hendrik Schönfelder, Otto Watzenberger, Hans-Josef Sterzel, Klaus Kühling
  • Preparation of iron pentacarbonyl
    Patent number: 7276220
    Abstract: Iron pentacarbonyl is prepared by reacting iron with carbon monoxide in suspension and in the presence of a polysulfide of the general formula RSxR? as a catalyst, where R is an organic radical and x is a number from 2 to 8.
    Type: Grant
    Filed: November 22, 2004
    Date of Patent: October 2, 2007
    Assignee: BASF Aktiengesellschaft
    Inventors: Gabriele Unger, Hendrik Schönfelder, Otto Watzenberger, Hans-Josef Sterzel, Klaus Kühling
  • Fluidized bed method and reactor for the treatment of catalysts and catalyst carriers
    Patent number: 7232551
    Abstract: A method for the treatment of catalysts or catalyst carriers by: a) introducing and distributing a gas in the lower section of a reactor containing a catalyst or catalyst carrier bulk material; b) forming a fluidized bed in the reactor; c) treating the particles in the fluidized bed while removing the fine particles an/or retaining the course particles by means of a separating organ and d) discharging the reactor. To this end, a reactor bottom which tapers downwards is used.
    Type: Grant
    Filed: October 15, 1999
    Date of Patent: June 19, 2007
    Assignee: Basell Polyolefine GmbH
    Inventors: Paulus De Lange, Hendrik Schönfelder, Michael Kämmerer, Hans Werner Siebenhandl, Kaspar Evertz, Stefan Wietfeldt-Haltenhoff, Joachim Werther