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2 630 801

(13)

(51)

IPC

C01G43/06(2006-01-01)

(21) (22)

Application

2016149557, 2016-12-16

(24)

Start date

2016-12-16

(22)

Actual filing date

2016-12-16

(45)

Published

2017-09-13

(72)

Inventor

Alkhimov Nikolaj BorisovichLysenko Evgenij KonstantinovichMarushkin Dmitrij ValerevichKhmelevskaya Irina ValentinovnaChumak Lesya Grigorevna

(73)

Holder

Federalnoe Gosudarstvennoe Unitarnoe Predpriyatie Institut Nauchno-Proizvodstvennoe Obedinenie Npo

URANIUM HEXAFLUORIDE PROCESSING METHOD Russian patent published in 2017 - IPC C01G43/06

Abstract RU 2630801 C1

FIELD: chemistry.

SUBSTANCE: method involves hydrolysis of uranium hexafluoride, with uranium hexafluoride pre-cooled to the temperature of ≤-40°C. Ammonium fluoride and ice are added to the water, the amount of which is selected from the condition for compensation of heat release during the hydrolysis of uranium hexafluoride, uranium hexafluoride is gradually added to the mixture, and its quantity is selected inversely proportional to the growth of the solution temperature of the products, further processing of the hydrolysis products with ammonia water, filtration and heat treatment of the precipitate are performed. The method does not require sophisticated aggregated system of devices and can be applied for processing both highly enriched and depleted (dump) uranium hexafluoride in the isotope U²³⁵, including after a long period of its storage.

EFFECT: improving the efficiency and productivity of processing significant quantities of uranium hexafluoride.

7 cl, 4 ex

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RU 2 630 801 C1

Authors

Alkhimov Nikolaj Borisovich

Lysenko Evgenij Konstantinovich

Marushkin Dmitrij Valerevich

Khmelevskaya Irina Valentinovna

Chumak Lesya Grigorevna

Dates

2017-09-13—Published

2016-12-16—Filed