Patents Assigned to KGB Kernkraftwerke Gundremmingen Betriebsgesellschaft mbH
  • Method of treating contaminated aqueous phosphoric acid solutions
    Patent number: 4749455
    Abstract: Phosphoric acid solution used in the decontamination of radioactive metal articles is reacted with oxalic acid to precipitate the iron oxalate which is then pyrolyzed to form a mixture of oxides in small volume for storage as a radioactive waste. The solution from which the oxalate is removed is evaporatively concentrated and reused for decontamination.
    Type: Grant
    Filed: August 28, 1987
    Date of Patent: June 7, 1988
    Assignee: KGB Kernkraftwerke Gundremmingen Betriebsgesellschaft mbH
    Inventors: Manfried Lasch, Norbert Eickelpasch, Hans-Peter Mies, Wolfgang Stang