Patents by Inventor Hubert Ranarivelo

Hubert Ranarivelo 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 separating actinides from lanthanides in an acidic aqueous solution
    Patent number: 4461747
    Abstract: A method for the separation of actinides from lanthanides present in a trivalent state in an acidic aqueous solution.Said method consists in selectively extracting in an organic solvent the actinides present in said solution, by bringing said aqueous solution into contact with an organic solvent comprising a system of extractants constituted by an acidic organo-phosphorated compound containing at least one electron doner sulfur atom such as di-2-ethylhexyl-dithio-phosphoric acid, and by a neutral organophosphorated compound containing at least one electron-doner oxygen atom such as tributyl phosphate.
    Type: Grant
    Filed: January 13, 1982
    Date of Patent: July 24, 1984
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Richard Fitoussi, Claude Musikas, Hubert Ranarivelo