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2 230 704

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IPC

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Application

2002125804/15, 2002-09-27

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Start date

2002-09-27

(22)

Actual filing date

2002-09-27

(45)

Published

2004-06-20

(72)

Inventor

Saprygin A.V.Kalashnikov V.A.Dzhavaev B.G.Zalesov Ju.N.Kostrjukov A.M.Titova L.A.Elistratov O.V.

(73)

Holder

Federal'Noe Gosudarstvennoe Unitarnoe Predprijatie Ehlektrokhimicheskij Kombinat"

METHOD OF DETERMINING IMPURITIES IN SOLID URANIUM COMPOUNDS AND DEVICE FOR IMPLEMENTATION THEREOF Russian patent published in 2004 - IPC

Abstract RU 2230704 C2

FIELD: analytical methods in uranium industry.

SUBSTANCE: invention relates to analytical methods regarding uranium compounds capable of forming volatile fluorides. Method of invention comprises atomic fluorine fluorination of a small amount of impurities-containing uranium compound in a special reactor followed by analyzing fluorination products with the aid of gas mass-spectrometer. Atomic fluorine is formed in reactor as a result of decomposition of molecular fluorine stream on nickel electrode heated to 550-600^оС. Determination of the weight portion of impurities in solid uranium compounds is performed taking into account fluorination factors quantitatively characterizing probability of formation of volatile fluorides of impurities. Device for implementing the method consists of a covered body. The body has two connecting pipes for supplying molecular fluorine and discharging fluorination products. Nickel wire electrode is extended inside the body and located in immediate proximity to nickel gauze on the bottom of body wherein sample of solid uranium compounds is placed.

EFFECT: simplified and accelerated analytic procedure.

3 cl, 2 dwg, 1 tbl

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RU 2 230 704 C2

Authors

Saprygin A.V.

Kalashnikov V.A.

Dzhavaev B.G.

Zalesov Ju.N.

Kostrjukov A.M.

Titova L.A.

Elistratov O.V.

Dates

2004-06-20—Published

2002-09-27—Filed