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2 314 582

(13)

(51)

IPC

G21F9/28(2006-01-01)

G21C19/44(2006-01-01)

(21) (22)

Application

2006124616/06, 2006-07-10

(24)

Start date

2006-07-10

(22)

Actual filing date

2006-07-10

(45)

Published

2008-01-10

(72)

Inventor

Bukharin Aleksandr DmitrievichDeniskin Valentin PetrovichKolesnikov Boris PetrovichFilatov Oleg Nikolaevich

(73)

Holder

Federal'Noe Gosudarstvennoe Unitarnoe Predprijatie Nauchno-Issledovatel'Skij Institut Nauchno-Proizvodstvennoe Ob"Edinenie

METHOD FOR RECOVERING URANIUM-ALUMINUM WASTE OF NUCLEAR INDUSTRY Russian patent published in 2008 - IPC G21F9/28 G21C19/44

Abstract RU 2314582 C1

FIELD: nuclear power engineering.

SUBSTANCE: proposed method used for recovering rejected and unclaimed aluminum-clad fuel elements with uranium-aluminum core involves following procedures. Waste is placed in sodium hydroxide and sodium nitrate solution whereupon mixture temperature is reduced to 60-70 °C and nitric acid is introduced in solution; then mixture is exposed to temperature of 80±10 °C, whereupon mixture is filtered off to extract uranium.

EFFECT: reduced cost and uranium loss in waste recovery.

1 cl

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RU 2 314 582 C1

Authors

Bukharin Aleksandr Dmitrievich

Deniskin Valentin Petrovich

Kolesnikov Boris Petrovich

Filatov Oleg Nikolaevich

Dates

2008-01-10—Published

2006-07-10—Filed