Patents by Inventor Susanne Buchholz

Susanne Buchholz 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 producing aromatic amines
    Patent number: 9067864
    Abstract: Aromatic amines are produced by adiabatic hydrogenation of nitroaromatic compounds in the gas phase on one or more fixed catalysts. The nitroaromatic reactant is passed over the catalyst under pressure and at elevated temperature with hydrogen, water, optionally nitrogen and substantially in the absence of the aromatic amine produced from the nitroaromatic.
    Type: Grant
    Filed: July 25, 2007
    Date of Patent: June 30, 2015
    Assignee: Bayer MaterialScience AG
    Inventors: Knut Sommer, Ido Schwarz, Susanne Buchholz, Franz-Ulrich Von Gehlen, Andre Lago, Karl-Heinz Wilke, Holger Orzesek, Hans-Georg Pirkl, Peter Lehner, Stephan Schubert
  • Process for producing aromatic amines
    Publication number: 20080234518
    Abstract: Aromatic amines are produced by adiabatic hydrogenation of nitroaromatic compounds in the gas phase on one or more fixed catalysts. The nitroaromatic reactant is passed over the catalyst under pressure and at elevated temperature with hydrogen, water, optionally nitrogen and substantially in the absence of the aromatic amine produced from the nitroaromatic.
    Type: Application
    Filed: July 25, 2007
    Publication date: September 25, 2008
    Inventors: Knut Sommer, Ido Schwarz, Susanne Buchholz, Franz-Ulrich Von Gehlen, Andre Lago, Karl-Heinz Wilke, Holger Orzesek, Hans-Georg Pirkl, Peter Lehner, Stephan Schubert
  • Process for the production of aromatic amines by heterogeneously catalysed hydrogenation
    Patent number: 7193112
    Abstract: The invention describes a process for the production of aromatic amines by the catalytic hydrogenation of aromatic nitro compounds, with the process being characterized by at least one catalytic hydrogenation step and the catalyst consists at least of a monolithic support and a catalytically active coating.
    Type: Grant
    Filed: October 7, 2004
    Date of Patent: March 20, 2007
    Assignee: Bayer MaterialScience AG
    Inventors: Peter Lehner, Thomas Turek, Matthias Brandt, Susanne Buchholz
  • Process for the production of aromatic amines by heterogeneously catalysed hydrogenation
    Publication number: 20050080293
    Abstract: The invention describes a process for the production of aromatic amines by the catalytic hydrogenation of aromatic nitro compounds, with the process being characterised by at least one catalytic hydrogenation step and the catalyst consists at least of a monolithic support and a catalytically active coating.
    Type: Application
    Filed: October 7, 2004
    Publication date: April 14, 2005
    Inventors: Peter Lehner, Thomas Turek, Matthias Brandt, Susanne Buchholz