Patents by Inventor Karl-Heinz Walczuch

Karl-Heinz Walczuch 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 heat integration in the hydrogenation and distillation of C—C-aldehydes
    Patent number: 9035110
    Abstract: The present invention relates to a process for heat integration in the preparation of saturated C3-C20-alcohols, in which a hydrogenation feed comprising at least one C3-C20-aldehyde is hydrogenated in the presence of a hydrogen-comprising gas in a hydrogenation zone and a discharge is taken off from the hydrogenation zone and subjected to distillation in at least one distillation column to give a fraction enriched in saturated C3-C20-alcohols.
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: May 19, 2015
    Assignee: BASF SE
    Inventors: Roland Krokoszinski, Karl-Heinz Walczuch
  • PROCESS FOR HEAT INTEGRATION IN THE HYDROGENATION AND DISTILLATION OF C3-C20-ALDEHYDES
    Publication number: 20130237726
    Abstract: The present invention relates to a process for heat integration in the preparation of saturated C3-C20-alcohols, in which a hydrogenation feed comprising at least one C3-C20-aldehyde is hydrogenated in the presence of a hydrogen-comprising gas in a hydrogenation zone and a discharge is taken off from the hydrogenation zone and subjected to distillation in at least one distillation column to give a fraction enriched in saturated C3-C20-alcohols.
    Type: Application
    Filed: March 6, 2013
    Publication date: September 12, 2013
    Inventors: Roland Krokoszinski, Karl-Heinz Walczuch
  • Method for processing a liquid hydroformylation discharge
    Patent number: 6727391
    Abstract: A liquid output from a continuous hydroformylation, which comprises essentially aldehydes, high-boiling by-products, a homogeneously dissolved hydroformylation catalyst, unreacted olefins, low-boiling by-products and dissolved synthesis gas, is worked up by a process in which a) the liquid hydroformylation output is depressurized in a first depressurization stage to a pressure which is from 2 to 20 bar below the reactor pressure, resulting in separation into a liquid phase and a gas phase, and b) the liquid phase obtained in the first depressurization stage is depressurized in a second depressurization stage to a pressure which is lower than the pressure of the first depressurization stage, resulting in separation into a liquid phase comprising essentially high-boiling by-products of the hydroformylation, the homogeneously dissolved hydroformylation catalyst and small amounts of hydroformylation product and unreacted olefin and a gas phase comprising essentially the major part of the hydroformylation produc
    Type: Grant
    Filed: August 8, 2002
    Date of Patent: April 27, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Karl-Heinz Walczuch, Rolf Müller, Roland Krokoszinski, Bernhard Geissler
  • Method for processing a liquid hydroformylation discharge
    Publication number: 20030013919
    Abstract: A liquid output from a continuous hydroformylation, which comprises essentially aldehydes, high-boiling by-products, a homogeneously dissolved hydroformylation catalyst, unreacted olefins, low-boiling by-products and dissolved synthesis gas, is worked up by a process in which
    Type: Application
    Filed: August 8, 2002
    Publication date: January 16, 2003
    Inventors: Karl-Heinz Walczuch, Rolf Mller, Roland Krokoszinski, Bernhard Geissler