Method for the chemical decontamination of nuclear reactor compo

Details Method for the chemical decontamination of nuclear reactor compo Method for the chemical decontamination of nuclear reactor compo

1978-10-26

1980-10-07

Padgett, Benjamin R.

Cleaning and liquid contact with solids

Processes

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

134 7, 134 8, 134 28, 134 29, 134 41, 2523011W, G21F 928

Patent

active

042266408

ABSTRACT:
Chemical decontamination of equipment contaminated with radioactive material, such as components and systems, particularly water-cooled nuclear reactors, by pretreating with alkaline permanganate, rinsing with demineralized water, treating with a citrate-oxalate solution, rinsing with demineralized water, and post-treating with an acidified hydrogen peroxide solution containing suspended inert particles. Solutions desirably contain no sulfur. The decontamination solution with a pH of about 3.5 and other preferred operating conditions are recited.

REFERENCES:
patent: 2801824 (1957-08-01), Taprogge
patent: 3013909 (1961-12-01), Pancer et al.
patent: 3080262 (1963-03-01), Newman
patent: 3272650 (1966-09-01), MacVittie
patent: 3275562 (1966-09-01), Smith
patent: 3496017 (1970-02-01), Weed
patent: 3873362 (1975-03-01), Mihram et al.

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