Chemical digestion of low level nuclear solid waste material

Details Chemical digestion of low level nuclear solid waste material Chemical digestion of low level nuclear solid waste material

1972-09-22

1976-05-18

Lechert, Jr., Stephen J.

Compositions

Organic luminescent material containing compositions

Scintillating or lasing compositions

423 20, C09K 300

Patent

active

039576760

ABSTRACT:
A chemical digestion for treatment of low level combustible nuclear solid waste material is provided and comprises reacting the solid waste material with concentrated sulfuric acid at a temperature within the range of 230.degree.-300.degree.C and simultaneously and/or thereafter contacting the reacting mixture with concentrated nitric acid or nitrogen dioxide. In a special embodiment spent ion exchange resins are converted by this chemical digestion to noncombustible gases and a low volume noncombustible residue.

REFERENCES:
patent: 2733126 (1956-01-01), Spiegler
patent: 2741541 (1956-04-01), Smith
patent: 2849278 (1958-08-01), Feldt
patent: 2955019 (1960-10-01), Dickert et al.
patent: 3557013 (1971-01-01), Detilleux et al.

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