Patents by Inventor JUERGEN EISSNER

JUERGEN EISSNER 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 for recovering uranium from components contaminated with uranium oxide
    Patent number: 11486023
    Abstract: A process for recovering uranium from components contaminated with uranium oxide includes providing a cleaning apparatus with a cleaning solution for dissolving the uranium oxide of the components, carrying out a cleaning process by introducing a batch of components into the cleaning apparatus, and carrying out a measurement for determining the uranium content of the components. The cleaning and the measuring are repeated if a limit value for the uranium content is exceeded. The components are discharged from the process if the uranium content falls below a limit value. The cleaning is carried out on a plurality of successive batches of components until a control measurement indicates an unsatisfactory cleaning action of the cleaning solution. The uranium oxide dissolved in the cleaning solution is recovered after indication of the unsatisfactory cleaning action.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: November 1, 2022
    Assignee: Framatome GmbH
    Inventors: Alfons Roppelt, Sebastian Hoppe, Wolfgang Schmid, Rainer Bezold, Juergen Eissner, Norbert Bergmann
  • METHOD FOR RECOVERING URANIUM FROM COMPONENTS CONTAMINATED WITH URANIUM OXIDE
    Publication number: 20200024688
    Abstract: A process for recovering uranium from components contaminated with uranium oxide includes providing a cleaning apparatus with a cleaning solution for dissolving the uranium oxide of the components, carrying out a cleaning process by introducing a batch of components into the cleaning apparatus, and carrying out a measurement for determining the uranium content of the components. The cleaning and the measuring are repeated if a limit value for the uranium content is exceeded. The components are discharged from the process if the uranium content falls below a limit value. The cleaning is carried out on a plurality of successive batches of components until a control measurement indicates an unsatisfactory cleaning action of the cleaning solution. The uranium oxide dissolved in the cleaning solution is recovered after indication of the unsatisfactory cleaning action.
    Type: Application
    Filed: September 27, 2019
    Publication date: January 23, 2020
    Inventors: ALFONS ROPPELT, SEBASTIAN HOPPE, WOLFGANG SCHMID, RAINER BEZOLD, JUERGEN EISSNER, NORBERT BERGMANN