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Application

98120260/25, 1998-11-13

(22)

Actual filing date

1998-11-13

(45)

Published

1999-06-27

(72)

Inventor

Kosareva I.M.Savushkina M.K.Egorov N.N.Janovskaja N.S.Savushkin S.V.Egorov A.N.Porojkov M.E.

(73)

Holder

Kosareva Inehssa MikhajlovnaSavushkina Margarita KonstantinovnaEgorov Nikolaj NikolaevichJanovskaja Nina SimonovnaSavushkin Sergej VladimirovichEgorov Aleksandr NikolaevichPorojkov Mikhail Evgen'Evich

METHOD OF CHEMICALLY DEACTIVATING SURFACES OF METALLIC OBJECTS CONTAMINATED WITH RADIOACTIVE MATERIALS Russian patent published in 1999 - IPC

Abstract RU 2132579 C1

FIELD: radiation protection. SUBSTANCE: surfaces of metallic (steel, nonferrous metals, their alloys) objects are treated for 1 to 24 h at 20 to 95 C with aqueous deactivating solution containing carboxylic acids constituting caprolactam production acidic waste. Invention enables efficient one- step deactivation of various metals including those with surface corrosion products of paint-varnish coatings with relatively small volume of exhaust solution. EFFECT: increased deactivation efficiency and reduced expenses. 4 cl, 4 tbl

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RU 2 132 579 C1

Authors

Kosareva I.M.

Savushkina M.K.

Egorov N.N.

Janovskaja N.S.

Savushkin S.V.

Egorov A.N.

Porojkov M.E.

Dates

1999-06-27—Published

1998-11-13—Filed

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