Patents by Inventor Kerstin Schierle-Arndt

Kerstin Schierle-Arndt 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).

  • Isolation of lithium
    Publication number: 20040118700
    Abstract: Lithium is isolated from lithium amalgam by electrolysis over a solid lithium ion conductor having the composition Li4−xSi1−xPxO4, where x is at least 0.3 and not more than 0.7.
    Type: Application
    Filed: December 10, 2003
    Publication date: June 24, 2004
    Inventors: Kerstin Schierle-Arndt, Gunther Huber, Werner Weppner, Christian Dietz
  • Preparation of a lithium ion conductor
    Publication number: 20040111874
    Abstract: A lithium ion conductor having the composition Li4−xSi1−xPxO4, where x is at least 0.3 and not more than 0.7, is prepared by shaping and calcining Li4−xSi1−xPxO4, where x is at least 0.3 and not more than 0.7, and/or compounds which are converted into this during calcination, wherein the Li4−xSi1−xPxO4 and/or the compounds is/are used in the form of powder having a mean particle size of not more than 5 microns.
    Type: Application
    Filed: December 10, 2003
    Publication date: June 17, 2004
    Inventors: Kerstin Schierle-Arndt, Gunther Huber, Werner Weppner, Christian Dietz
  • Catalytic preparation of alkali metal alkoxides
    Patent number: 6657091
    Abstract: Alkali metal alkoxides are prepared by reacting alkali metal amalgam with alcohol in the presence of a catalyst comprising iron having a carbon content of at least 0.3% by weight.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: December 2, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Kerstin Schierle-Arndt, Hans-Josef Sterzel, Dieter Schläfer, Josef Guth, Holger Friedrich, Peter Zehner
  • Electrochemical production of alkali metal from an alkali metal amalgam
    Patent number: 6409908
    Abstract: In a process for producing an alkali metal from alkali metal amalgam by electrolysis using an alkali metal amalgam as anode, a solid electrolyte which conducts alkali metal ions and a liquid alkali metal as cathode, the alkali metal amalgam as anode is kept in motion.
    Type: Grant
    Filed: December 13, 1999
    Date of Patent: June 25, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Günther Huber, Hermann Pütter, Kerstin Schierle-Arndt, Dieter Schläfer, Josef Guth, Bernd Schube, Diethard Lenz
  • Catalytic preparation of alkali metal alkoxides
    Publication number: 20020062050
    Abstract: Alkali metal alkoxides are prepared by reacting alkali metal amalgam with alcohol in the presence of a catalyst comprising iron having a carbon content of at least 0.3% by weight.
    Type: Application
    Filed: September 28, 2001
    Publication date: May 23, 2002
    Inventors: Kerstin Schierle-Arndt, Hans-Josef Sterzel, Dieter Schlafer, Josef Guth, Holger Friedrich, Peter Zehner
  • Electrolytic cell for producing an alkali metal
    Patent number: 6368487
    Abstract: An electrolytic cell comprises an agitated, alkali metal amalgam-containing anode, an alkali metal ion-conducting solid electrolyte and a cathode, wherein the solid electrolyte and the cathode are separated from one another by a liquid electrolyte.
    Type: Grant
    Filed: June 8, 2000
    Date of Patent: April 9, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Günther Huber, Hermann Pütter, Kerstin Schierle-Arndt, Dieter Schläfer, Josef Guth
  • Electrochemical production of lithium using a lithium amalgam anode
    Patent number: 6287448
    Abstract: A process for producing metallic lithium starting from an aqueous solution of at least one lithium salt comprises the following steps: (I) Production of a lithium amalgam from an aqueous solution of at least one lithium salt; and (II) Electrolysis using an anode comprising the lithium amalgam, a solid electrolyte which conducts lithium ions, and liquid lithium as cathode, wherein the lithium amalgam as anode is kept in motion.
    Type: Grant
    Filed: March 20, 2000
    Date of Patent: September 11, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Kerstin Schierle-Arndt, Hermann Pütter, Günther Huber, Dieter Schläfer, Josef Guth