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2 262 759

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IPC

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Application

2003133380/06, 2003-11-18

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Start date

2003-11-18

(22)

Actual filing date

2003-11-18

(45)

Published

2005-10-20

(72)

Inventor

Gustova M.V.Dmitriev S.N.Maslov O.D.Molokanova L.G.Oganesjan Ju.Ts.Sabel'Nikov A.V.

(73)

Holder

Ob"Edinennyj Institut Jadernykh Issledovanij

METHOD FOR URANIUM-237 ISOTOPE PRODUCTION Russian patent published in 2005 - IPC

Abstract RU 2262759 C2

FIELD: radiochemistry.

SUBSTANCE: the proposed method of ²³⁷U isotope production consists in irradiation of the natural or enriched ²³⁷U by the gamma quanta flux and in extraction of ²³⁷U isotope. Before irradiation a powder-like uranium compound is mixed with a powder-like substance, carrying out the function of ²³⁷U recoil nuclei absorption. After irradiation the mixture is disposed into a liquid, selectively dissolving only uranium compound. The solution is withdrawn and the nondissolved powder of the a absorbent substance, containing the ²³⁷U recoil nuclei, is separated and washed. The powder is dissolved in an acid in the presence of oxidizer and boric acid and is extracted then from the ²³⁷U isotope solution by a radiochemical method.

EFFECT: increasing the specific activity of the powder, containing the ²³⁷U isotope, and simplification of ²³⁷U isotope separation from ²³⁷U isotope.

3 cl, 1 dwg, 1 ex

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RU 2 262 759 C2

Authors

Gustova M.V.

Dmitriev S.N.

Maslov O.D.

Molokanova L.G.

Oganesjan Ju.Ts.

Sabel'Nikov A.V.

Dates

2005-10-20—Published

2003-11-18—Filed