METHOD FOR RECOVERING RADIOACTIVE PULPS AND DEPOSITS OF VALENCE (IV), (VI) Russian patent published in 2004 - IPC

Abstract RU 2234153 C2

FIELD: recovery of liquid radioactive wastes.

SUBSTANCE: proposed method includes dissolution of pulp or deposits solid phase stored in acidic, neutral, or alkali medium using for the purpose nitric acid solution or solution incorporating hydrazine or hydroxylamine, or hydrazine and hydrazoic acid, or solution incorporating nitric acid, hydrazine, hydroxylamine, and hydrazoic acid. Then solution obtained is concentrated by evaporation in pH acid area, and bottom solution is vitrified.

EFFECT: enhanced effectiveness of recovering pulp and deposits of any level of activity.

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RU 2 234 153 C2

Authors

Kuzin A.Ju.

Gergenrejder N.A.

Dzekun E.G.

Dates

2004-08-10—Published

2002-07-29—Filed