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2 431 003

(13)

(51)

IPC

C30B33/04(2006-01-01)

B01J19/08(2006-01-01)

C04B41/00(2006-01-01)

A44C17/00(2006-01-01)

(21) (22)

Application

2010119054/05, 2010-05-14

(24)

Start date

2010-05-14

(22)

Actual filing date

2010-05-14

(45)

Published

2011-10-10

(72)

Inventor

Stoljarevskij Anatolij Jakovlevich

(73)

Holder

Federal'Noe Gosudarstvennoe Bjudzhetnoe Uchrezhdenie Issledovatel'Skij Tsentr Institut"

PROCEDURE FOR RADIATION OF MINERALS Russian patent published in 2011 - IPC C30B33/04 B01J19/08 C04B41/00 A44C17/00

Abstract RU 2431003 C1

FIELD: metallurgy.

SUBSTANCE: procedure for radiation of minerals in neutron flow of reactor in container consists in screening radiated minerals from heat and resonance neutrons. Composition of material and density of the screen is calculated so, that specific activity of radiated minerals upon completion of radiation and conditioning does not exceed 10 Bq/g. Before radiation contents of natural impurities in radiated minerals can be analysed by the method of neutron activation analysis. Only elements activated with resonance neutrons are chosen from natural impurities of radiated minerals. Tantalum and manganese or scandium and/or iron or chromium are used as elements of the screen. Chromium-nickel steel alloyed with materials chosen from a row tantalum, manganese and scandium are used in material of the screen.

EFFECT: increased protection of product from resonance neutrons activating impurities in minerals.

5 cl, 1 tbl

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RU 2 431 003 C1

Authors

Stoljarevskij Anatolij Jakovlevich

Dates

2011-10-10—Published

2010-05-14—Filed