Abstract

A new process for preparing uranium and plutonium metals has been developed. The process is based on the high extractability of the elements with sodium amalgam from aqueous solutions. After extracting the uranium or plutonium with sodium amalgam, the resulting amalgam was heated in vacuum so that mercury and sodium were separated to produce uranium or plutonium metal. The mercury and sodium remaining in the uranium metal thus produced were found to be less than 5 and 15 ppm, respectively. The proposed process for preparing uranium and plutonium metals is applicable to other actinoids extracted with sodium amalgam from aqueous solutions.

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