Apparatus and process for recovering nuclear fuel from scrap...

C - Chemistry – Metallurgy – 22 – B

Patent

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53/190, 23/411

C22B 60/02 (2006.01)

Patent

CA 1116410

ABSTRACT OF THE DISCLOSURE A process for recovering compounds of enriched nuclear fuel from scrap materials is disclosed. The process yields an acid solution with the nuclear fuel dissolved therein. Except for spent filter media, the scrap materials are calcined to produce an oxidized material, which is reduced to a particulate material and leached in an acid bath that contains some recycled acid to yield an acid solution of the nuclear fuel material. The scrap mater- ials comprised of spent filter media are mulched and con- tacted with the acid solution. The insoluble materials are separated from the acid solution, and at least a por- tion of the acid solution is recycled to the leaching step, while the remainder of the acid solution is col- lected for subsequent treatment to recover the dissolved nuclear fuel material. Apparatus for performing the foregoing process in also disclosed.

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