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2 132 715

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IPC

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Application

97113069/25, 1997-07-30

(22)

Actual filing date

1997-07-30

(45)

Published

1999-07-10

(72)

Inventor

Kondakov V.M.Korotkevich V.M.Semenov E.N.Mikhajlova N.A.Vashchenko E.B.

(73)

Holder

Sibirskij Khimicheskij Kombinat

METHOD OF CHEMICALLY PROTECTING EXTRACTION SYSTEM BASED ON HYDROCARBON DILUENTS IN NITRIC ACID MEDIUM Russian patent published in 1999 - IPC

Abstract RU 2132715 C1

FIELD: radiation protection. SUBSTANCE: invention relates to extraction processing of uranium solutions in nitric acid media and consists in that, in order to protect extraction systems, urea in quantity at least 0.5 g per 1 l of aqueous phase is used as inhibitor. Method prevents dangerous situations associated with chemical interaction between extraction system and nitric acid. EFFECT: inhibited harmful nitration of extraction solution. 2 tbl

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RU 2 132 715 C1

Authors

Kondakov V.M.

Korotkevich V.M.

Semenov E.N.

Mikhajlova N.A.

Vashchenko E.B.

Dates

1999-07-10—Published

1997-07-30—Filed

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