Patents by Inventor Nahit Eresen

Nahit Eresen 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 selective separation of uranium from solutions by means of an ion exchanger
    Patent number: 4233272
    Abstract: A process for selectively removing tetravalent and/or hexavalent uranium ions from a solution by using a chelate-forming cation exchanger. The solution may be prepared by contacting uranium bearing ore with either an acid or a dilute carbonate or bicarbonate solution. To facilitate removal of the uranium ions, the solution may have a pH value greater than 1.0 and a redox potential of from -50 to +250 mV.
    Type: Grant
    Filed: June 14, 1977
    Date of Patent: November 11, 1980
    Assignee: Uranerzbergbau GmbH
    Inventors: Nahit Eresen, Klaus Schroer, Hans J. Becker