Nuclear reactor decontamination

Details Nuclear reactor decontamination Nuclear reactor decontamination

1979-04-09

1981-09-01

Caroff, Marc L.

Cleaning and liquid contact with solids

Processes

For metallic, siliceous, or calcareous basework, including...

134 10, 134 13, 134 28, 134 30, 134 36, 134 41, 176 37, B08B 704

Patent

active

042870020

ABSTRACT:
Heat transfer and associated surfaces in nuclear reactors are decontaminated by treating the surface with ozone to oxidize acid-insoluble metal oxides to a more soluble state, removing oxidized solubilized metal oxides, and removing other surface oxides using low concentrations of decontaminating reagents. Ozone treatment has been found very effective with alloys having surface metal oxides rendered more easily dissolved by ozone oxidation especially with chromium or chromium-nickel containing alloys.

REFERENCES:
patent: 3013909 (1961-12-01), Pancer et al.
patent: 3664870 (1972-05-01), Oberhofer et al.
patent: 3737373 (1973-06-01), Motojima et al.
patent: 3873362 (1975-03-01), Mihram et al.
patent: 4042455 (1977-08-01), Brown
patent: 4162229 (1979-07-01), Loewenschuss

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