Plutonium recovery from spent reactor fuel by uranium displacement Page: 13 of 20
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electrolyte containing the 25.9 kilograms of plutonium and
7.2 kilograms of uranium at which time .he uranium in the
molten cadmium displaces plutonium in the salt until the
original salt composition is reestablished. 2.2 kilograms
of uranium remain dissolved in the cadmium and 4.4 kilograms
of plutonium have transferred from the electrolyte to the
molten cadmium. At this time, the original salt composition
of 390 kilograms of lithium chloride, potassium chloride
eutectic having 21.5 kilograms of plutonium and 11.6
10 kilograms of uranium has been reestablished. Thereafter,
the 2.2 kilograms of uranium and ti- 4.4 kilograms of
plutonium are separated from the molten cadmium by elevating
the temperature of cadmium above its boiling point and
distilling the cadmium from the solution leaving the uranium
and plutonium values.
The ratio of plutonium chloride to uranium chloride
prior to uranium displacement controls the ratio of
plutonium to uranium in the mixed product. Because the
former ratio depends only on the amounts of uranium chloride
20 and plutonium chloride in the electrolyte before
introduction of a fuel batch and the amount of uranium and
plutonium in the fuel, it is not subject to control,
provided that uranium in the amount of all the actinide
values in the fuel is transferred to the solid electrode.
The amount of plutonium chloride and uranium chloride in the
electrolyte before introduction of the feed is established
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Ackerman, J. P. Plutonium recovery from spent reactor fuel by uranium displacement, patent, December 31, 1991; Illinois. (https://digital.library.unt.edu/ark:/67531/metadc1314596/m1/13/: accessed July 16, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.