Patents by Inventor Hans-Martin Polka

Hans-Martin Polka 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 working up solvent-containing hydrogenation product mixtures
    Patent number: 9045382
    Abstract: The present invention relates to a process for separating off solvents from solvent-comprising hydrogenation outputs from a catalytic hydrogenation process, which comprise at least one water-soluble hydrogenation product having at least one alcohol, lactone, ether, lactam or amino group in a solvent which is immiscible or not completely miscible with water and has a boiling point below 100° C., wherein water is added to the hydrogenation output, the solvent-comprising phase is separated off and recirculated to the hydrogenation.
    Type: Grant
    Filed: July 16, 2007
    Date of Patent: June 2, 2015
    Assignee: BASF Aktiengesellschaft
    Inventors: Rolf Pinkos, Jens Heimann, Hans-Martin Polka, Heiko Urtel, Gunther Windecker
  • Method for separating hydrogen chloride and phosgene
    Patent number: 7659430
    Abstract: The invention relates to a process for separating hydrogen chloride and phosgene, which comprises bringing a mixture of hydrogen chloride and phosgene into contact with an ionic liquid in which at least part of the hydrogen chloride is dissolved in a step a) and then separating off the hydrogen chloride dissolved in the ionic liquid in a step b).
    Type: Grant
    Filed: September 10, 2005
    Date of Patent: February 9, 2010
    Assignee: BASF Aktiengesellschaft
    Inventors: Andreas Woelfert, Carsten Knoesche, Hans-Juergen Pallasch, Martin Sesing, Eckhard Stroefer, Hans-Martin Polka, Manfred Heilig
  • PROCESS FOR WORKING UP SOLVENT-CONTAINING HYDROGENATION PRODUCT MIXTURES
    Publication number: 20090314992
    Abstract: The present invention relates to a process for separating off solvents from solvent-comprising hydrogenation outputs from a catalytic hydrogenation process, which comprise at least one water-soluble hydrogenation product having at least one alcohol, lactone, ether, lactam or amino group in a solvent which is immiscible or not completely miscible with water and has a boiling point below 100° C., wherein water is added to the hydrogenation output, the solvent-comprising phase is separated off and recirculated to the hydrogenation.
    Type: Application
    Filed: July 16, 2007
    Publication date: December 24, 2009
    Applicant: BASF SE
    Inventors: Rolf Pinkos, Jens Heimann, Hans-Martin Polka, Heiko Urtel, Gunther Windecker
  • Method for hydrocyanation
    Patent number: 7504529
    Abstract: A process is described for removing hydrogen cyanide from mixtures comprising pentenenitrile, wherein the removal is effected by an azeotropic distillation of hydrogen cyanide with 1,3-butadiene.
    Type: Grant
    Filed: January 26, 2005
    Date of Patent: March 17, 2009
    Assignee: BASF Aktiengesellschaft
    Inventors: Tim Jungkamp, Hans-Martin Polka, Robert Baumann, Michael Bartsch, Gerd Haderlein, Hermann Luyken, Jens Scheidel
  • Method for Hydrocyanation
    Publication number: 20080242885
    Abstract: A process is described for removing hydrogen cyanide from mixtures comprising pentenenitrile, wherein the removal is effected by an azeotropic distillation of hydrogen cyanide with 1,3-butadiene.
    Type: Application
    Filed: January 26, 2005
    Publication date: October 2, 2008
    Applicant: BASF Aktiengesellschaft
    Inventors: Tim Jungkamp, Hans-Martin Polka, Robert Baumann, Michael Bartsch, Gerd Haderlein, Hermann Luyken, Jens Scheidel
  • Method for Separating Hydrogen Chloride and Phosgene
    Publication number: 20070293707
    Abstract: The invention relates to a process for separating hydrogen chloride and phosgene, which comprises bringing a mixture of hydrogen chloride and phosgene into contact with an ionic liquid in which at least part of the hydrogen chloride is dissolved in a step a) and then separating off the hydrogen chloride dissolved in the ionic liquid in a step b).
    Type: Application
    Filed: September 10, 2005
    Publication date: December 20, 2007
    Applicant: BASF Aktiengesellschaft
    Inventors: Andreas Wolfert, Carsten Knosche, Hans-Jurgen Pallasch, Martin Sesing, Eckhard Stroefer, Hans-Martin Polka, Manfred Heilig