Method for decontaminating solid iodine filters

The invention relates to a method for decontaminating solid iodine filters containing silver iodide and/or physisorbed molecular iodine. Said method consists in bringing the filter into contact with an aqueous solution of a reducing agent chosen from hydroxylamine, hydroxylamine salts, ascorbic acid...

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Bibliographic Details
Main Authors JEAN-PIERRE DONNAREL, FREDERIC DEVISME, AIME VAUDANO
Format Patent
LanguageEnglish
Published 31.12.2003
Edition7
Subjects
DECONTAMINATION ARRANGEMENTS THEREFOR
NUCLEAR ENGINEERING
NUCLEAR PHYSICS
PHYSICS
PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULARRADIATION OR PARTICLE BOMBARDMENT
TREATING RADIOACTIVELY CONTAMINATED MATERIAL
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Summary:The invention relates to a method for decontaminating solid iodine filters containing silver iodide and/or physisorbed molecular iodine. Said method consists in bringing the filter into contact with an aqueous solution of a reducing agent chosen from hydroxylamine, hydroxylamine salts, ascorbic acid, ascorbic acid salts, ascorbyl esters, sodium borohydride salts, sodium hypophosphite, formaldehyde, urea, formic acid and the mixtures thereof, in order to extract iodine from the filter and to solubilize it in the aqueous solution. Silver can also be dissolved in the reducing agent solution or in an other appropriate aqueous solution either simultaneously or successively.
Bibliography:Application Number: GB20030020614