Compagnie Generale Des Matieres Nucleaires

Claude Bernard

Patrice B Roux

Francedillaois Meline

Marie-Helene Mouliney

Jacques Dollfus

Sealing system for the engagement of a container beneath a melting

A process and apparatus for dissolving a mixed oxide or mixture of oxides of uranium and plutonium. The powder is added with nitric acid to a chamber to dissolve uranium oxide, and the solution is circulated through a circuit of the apparatus with a portion of the solution passing through a filter. At least a portion of the filtered solution containing dissolved uranium oxide is removed from the apparatus, while returning non-filtered circulating solution containing non-dissolved plutonium oxide to the chamber. The removal of solution is then terminated, a monovalent silver salt is added and divalent silver is generated in-situ by electrolysis, the divalent silver causing dissolution of the plutonium oxide.

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Chevreuse, France

Claude Bernard