Recoverable immobilization of transuranic elements in sulfate as

Details Recoverable immobilization of transuranic elements in sulfate as Recoverable immobilization of transuranic elements in sulfate as

1982-12-07

1985-04-09

Hunt, Brooks H.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

252628, 423 20, C22B 6002

Patent

active

045099782

ABSTRACT:
Disclosed is a method of reversibly immobilizing sulfate ash at least about 20% of which is sulfates of transuranic elements. The ash is mixed with a metal which can be aluminum, cerium, samarium, europium, or a mixture thereof, in amounts sufficient to form an alloy with the transuranic elements, plus an additional amount to reduce the transuranic element sulfates to elemental form. Also added to the ash is a fluxing agent in an amount sufficient to lower the percentage of the transuranic element sulfates to about 1% to about 10%. The mixture of the ash, metal, and fluxing agent is heated to a temperature sufficient to melt the fluxing agent and the metal. The mixture is then cooled and the alloy is separated from the remainder of the mixture.

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