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2 579 055

(13)

(51)

IPC

C01G43/06(2006-01-01)

G21F9/28(2006-01-01)

(21) (22)

Application

2014154157/05, 2014-12-30

(24)

Start date

2014-12-30

(22)

Actual filing date

2014-12-30

(45)

Published

2016-03-27

(72)

Inventor

Gromov Oleg BorisovichMazur Roman Leonidovich

(73)

Holder

Aktsionernoe Obshchestvo Nauchno-Issledovatelskij Institut Khimicheskoj Tekhnologii"

METHOD OF CLEANING METAL SURFACES FROM URANIUM DEPOSITS Russian patent published in 2016 - IPC C01G43/06 G21F9/28

Abstract RU 2579055 C1

FIELD: physics.

SUBSTANCE: invention relates to uranium, with respect to operation of production at separation of uranium isotopes, and can be used for cleaning different metal surfaces operating in the medium of uranium hexafluoride from non-volatile uranium deposits. Method of cleaning metal surfaces from uranium deposits involves treatment of surfaces of gaseous fluorinating agents containing ClF₃ and F₂ in weight ratio (1.7÷3.6):1, under conditions of dynamic process flow, by means of circulation of gases through deposition of uranium and a layer of sodium fluoride, heated to 185-225°C.

EFFECT: invention provides the fluorination process intensification, selective extraction of uranium hexafluoride gas and avoiding formation of corrosion-active and easily condensing reaction products.

1 cl, 1 ex, 1 tbl

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RU 2 579 055 C1

Authors

Gromov Oleg Borisovich

Mazur Roman Leonidovich

Dates

2016-03-27—Published

2014-12-30—Filed