Method for processing radioactive wastes

Details Method for processing radioactive wastes Method for processing radioactive wastes

C - Chemistry, Metallurgy

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B

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C22B 9/02 (2006.01) B01D 15/00 (2006.01) B01D 39/16 (2006.01) B01D 46/00 (2006.01) C22B 60/02 (2006.01) G21F 9/00 (2006.01)

Patent

CA 1145950

ABSTRACT Recovering fission material from solid raw wastes and producing a space-saving product which can be committed to ultimate storage by the fol- lowing steps: a) a comminution of the raw wastes to a grain size of about 5mm b) dissolution thereof at elevated temperature in an organic solvent un- til a concentration of about 10 percent by weight is reached c) separation of insoluble raw waste particles larger than lmm d) separation of the undis- solved fission material content remaining in the polymer solution by means of a centrifuge e) evaporation and condensation of the solvents for return into the dissolving process according to b) f) embedding the waste component from c) into the remaining plastic melt g) drawing-off the melt and solidi- fication thereof in storage containers.

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