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2 205 461

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Application

2001100656/06, 2001-01-09

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Start date

2001-01-09

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Actual filing date

2001-01-09

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Published

2003-05-27

(72)

Inventor

Kudrjavskij Ju.P.Trapeznikov Ju.F.Bekker V.F.Belkin A.V.

(73)

Holder

Ooo Nauchno-Proizvodstvennaja Ehkologicheskaja Firma

METHOD FOR RECOVERING AND DECONTAMINATING RADIOACTIVE INDUSTRIAL PRODUCTS AND/OR INDUSTRIAL WASTES Russian patent published in 2003 - IPC

Abstract RU 2205461 C2

FIELD: metallurgy. SUBSTANCE: upon dissolving source industrial products and/or industrial wastes product obtained is treated with lime slurry, hydrate sediment is separated and brought out to mother waters of barium chloride and sulfuric acid, ionic proportions being as follows: SO2-4

/Ba2+ = -1-6 and Ca2+/Ba2+≤5. Then solution of iron trichloride in the form of waste waters is introduced in addition into pulp formed in the process. Upon processing pulp with trichloride iron solution in the amount of 0.5- 5 kg of iron per 1 sq. m of mother waters it is treated again with lime slurry. EFFECT: reduced radioactivity of filtrates due to enhanced joint precipitation of radionuclides and cakes. 1 cl, 3 tbl

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RU 2 205 461 C2

Authors

Kudrjavskij Ju.P.

Trapeznikov Ju.F.

Bekker V.F.

Belkin A.V.

Dates

2003-05-27—Published

2001-01-09—Filed

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