Method of treatment of high-level radioactive waste

Details Method of treatment of high-level radioactive waste Method of treatment of high-level radioactive waste

1991-11-08

1993-02-09

Walsh, Donald P.

Compositions

Radioactive compositions

Nuclear reactor fuel

252626, 252630, 264 05, 423 2, 423 19, 23294R, 159DIG12, G21F 908, G21F 914

Patent

active

051851040

ABSTRACT:
A method of treatment of a high-level radioactive waste comprising heating the radioactive waste at a high temperature of about 500.degree. to 3000.degree. C. to vaporize part of the elements contained in the radioactive waste, and cooling the resultant vapor to separately collect the elements. In one embodiment, the heating step is replaced by a reduction-heating step wherein heating is carried out in the presence of a reducing agent, e.g. hydrogen. In another embodiment, the heating step may be followed by the reduction-heating step.

REFERENCES:
patent: 2773736 (1956-12-01), Hollingsworth
patent: 2944878 (1960-07-01), Jacque et al.
patent: 2977194 (1961-03-01), Loeding et al.
patent: 3136627 (1964-06-01), Caldwell, Jr. et al.
patent: 3310500 (1967-03-01), Kelly
patent: 4275045 (1981-06-01), Anav et al.
patent: 4395367 (1983-07-01), Rohrmann et al.

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