Patents by Inventor Anja Schubert

Anja Schubert 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).

  • Liquid cation exchanger
    Patent number: 10071951
    Abstract: The present application relates to a process for removing an organic compound having one or more positive charges from an aqueous solution, comprising the steps a) provision of the aqueous solution comprising the organic compound and of a hydrophobic organic solution which comprises a liquid cation exchanger, where the liquid cation exchanger is hydrophobic, and where the liquid cation exchanger has one or more negative charges and an overall negative charge, b) contacting the aqueous solution and the organic solution, and c) separating off the organic solution from the aqueous solution.
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: September 11, 2018
    Assignee: Evonik Degussa GmbH
    Inventors: Frank Erhardt, Thomas Haas, Martin Roos, Daniel Demicoli, Markus Pötter, Anja Schubert, Jan Christoph Pfeffer, Thomas Tacke, Harald Häger, Andreas Pfennig, Marie-Dominique Przybylski-Freund
  • Liquid cation exchanger
    Patent number: 9315443
    Abstract: The invention relates to a method for removing an organic compound having one or more positive charges from an aqueous solution. Said method consists of the following steps a) the aqueous solution containing the organic compound, and a hydrophobic organic solution which contains a hydrophobic liquid cation exchanger having one or more negative charges and a negative total charge, are provided, b) the aqueous solution and the organic solution are brought into contact with each other and c) the organic solution is separated from the aqueous solution.
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: April 19, 2016
    Assignee: Evonik Degussa GmbH
    Inventors: Frank Erhardt, Thomas Haas, Martin Roos, Daniel Demicoli, Markus Poetter, Anja Schubert, Jan Christoph Pfeffer, Thomas Tacke, Harald Haeger, Andreas Pfennig, Marie-Dominique Przybylski-Freund
  • LIQUID CATION EXCHANGER
    Publication number: 20140054224
    Abstract: The present application relates to a process for removing an organic compound having one or more positive charges from an aqueous solution, comprising the steps a) provision of the aqueous solution comprising the organic compound and of a hydrophobic organic solution which comprises a liquid cation exchanger, where the liquid cation exchanger is hydrophobic, and where the liquid cation exchanger has one or more negative charges and an overall negative charge, b) contacting the aqueous solution and the organic solution, and c) separating off the organic solution from the aqueous solution.
    Type: Application
    Filed: December 1, 2011
    Publication date: February 27, 2014
    Applicant: Evonik Degussa GmbH
    Inventors: Frank Erhardt, Thomas Haas, Martin Roos, Daniel Demicoli, Markus Pötter, Anja Schubert, Jan Christoph Pfeffer, Thomas Tacke, Harald Häger, Andreas Pfennig, Marie-Dominique Przybylski-Freund
  • LIQUID CATION EXCHANGER
    Publication number: 20140039210
    Abstract: The invention relates to a method for removing an organic compound having one or more positive charges from an aqueous solution. Said method consists of the following steps a) the aqueous solution containing the organic compound, and a hydrophobic organic solution which contains a hydrophobic liquid cation exchanger having one or more negative charges and a negative total charge, are provided, b) the aqueous solution and the organic solution are brought into contact with each other and c) the organic solution is separated from the aqueous solution.
    Type: Application
    Filed: December 1, 2011
    Publication date: February 6, 2014
    Applicant: Evonik Degussa GmbH
    Inventors: Frank Erhardt, Thomas Haas, Martin Roos, Daniel Demicoli, Markus Poetter, Anja Schubert, Jan Christoph, Thomas Tacke, Harald Haeger, Andreas Pfennig, Marie-Dominique Przybylski-Freund