Patents by Inventor Knut Wildner

Knut Wildner 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).

  • Method and device for recovering metals by means of pulsating cathode currents also in combination with anodic coproduction processes
    Publication number: 20040079642
    Abstract: The invention aims to achieve effective recovery of metals from process solutions and effluents by means of pulsating cathode currents, preferably with coupled anodic processes.
    Type: Application
    Filed: September 12, 2003
    Publication date: April 29, 2004
    Inventors: Wolfgang Thiele, Knut Wildner, Gerd Heinze
  • Process for the simultaneous electrochemical preparation of sodium dithionite and sodium peroxodisulfate
    Patent number: 6454929
    Abstract: A process for the simultaneous preparation of sodium peroxodisulfate and sodium dithionite in an electrolysis cell divided into two by a cation exchanger membrane, wherein sodium dithionite is produced at the cathode and sodium peroxodisulfate is produced at the anode.
    Type: Grant
    Filed: April 27, 2001
    Date of Patent: September 24, 2002
    Assignee: Eilenburger Elektrolyse- und Umwelttechnik GmbH
    Inventors: Wolfgang Thiele, Knut Wildner, Hermann Matschiner, Michael Gnann
  • Process for the combined electrochemical production of sodium peroxide disulphate and soda lye
    Patent number: 5958208
    Abstract: The invention concerns the combined production of sodium peroxide disulphate and soda lye from sodium sulphate. According to the invention, electrolysis is carried out in at least one two-chamber electrolysis cell with cathode and anode chambers separated by a cation-exchanger membrane. The electrolysis temperature is set at between 30 and 70.degree. C., a sodium sulphate solution which is at least 75% saturated at this temperature is introduced into the anode chamber, the sodium ion concentrations are maintained in the range of between 4.5 and 6.0 mol/l and soda lye is extracted from the cathode chamber.
    Type: Grant
    Filed: February 6, 1998
    Date of Patent: September 28, 1999
    Assignee: Eilenburger Elecktrolyse-und UmweltTechnik GmbH
    Inventors: Wolfgang Thiele, Knut Wildner