Patents by Inventor Louis M. Toth

Louis M. Toth 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 selectively reducing plutonium values by a photochemical process
    Patent number: 4131527
    Abstract: The rate of reduction of Pu(IV) to Pu(III) in nitric acid solution containing a reducing agent is enhanced by exposing the solution to 200-500 nm electromagnetic radiation. Pu values are recovered from an organic extractant solution containing Pu(IV) values and U(VI) values by the method of contacting the extractant solution with an aqueous nitric acid solution in the presence of a reducing agent and exposing the aqueous solution to electromagnetic radiation having a wavelength of 200-500 nm. Under these conditions, Pu values preferentially distribute to the aqueous phase and U values preferentially distribute to the organic phase.
    Type: Grant
    Filed: March 30, 1977
    Date of Patent: December 26, 1978
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Horace A. Friedman, Louis M. Toth, Jimmy T. Bell