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Application

2003124725/15, 2003-08-07

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Start date

2003-08-07

(22)

Actual filing date

2003-08-07

(45)

Published

2005-07-27

(72)

Inventor

Rodchenkov N.V.Uslamin A.V.Koptilina E.Ju.Shtutsa M.G.Cheremnykh G.S.Logvinenko I.A.Seredenko V.A.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Mekhanicheskij Zavod" Chmz)

ANHYDROUS URANIUM TETRAFLUORIDE PREPARATION METHOD Russian patent published in 2005 - IPC

Abstract RU 2257350 C2

FIELD: industrial organic synthesis.

SUBSTANCE: method is accomplished by drying and then calcining uranium tetrafluoride in rotary tubular furnaces constituting assembled system provided with ventilation system, cooling screw, and container. Heat treatment of product is effected in air-completed own gas atmosphere, formation of atmosphere including calcination step gases. Air is preheated to 300-400°C and fed in countercurrent mode at a rate of 2-8 m³/h into calcination step and at 100-250 m³/h into drying step. Anhydrous product is cooled to 180°C or below and tightly sealed in container.

EFFECT: reduced power and materials consumption.

5 cl, 2 tbl

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RU 2 257 350 C2

Authors

Rodchenkov N.V.

Uslamin A.V.

Koptilina E.Ju.

Shtutsa M.G.

Cheremnykh G.S.

Logvinenko I.A.

Seredenko V.A.

Dates

2005-07-27—Published

2003-08-07—Filed