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2 514 766

(13)

(51)

IPC

C22B30/06(2006-01-01)

C22B9/05(2006-01-01)

C22B3/26(2006-01-01)

C25C1/22(2006-01-01)

(21) (22)

Application

2012123237/02, 2012-06-05

(24)

Start date

2012-06-05

(22)

Actual filing date

2012-06-05

(45)

Published

2014-05-10

(72)

Inventor

Novoselov Igor' IvanovichMakarov Igor' Vasil'EvichFedotov Valerij Alekseevich

(73)

Holder

Federal'Noe Gosudarstvennoe Bjudzhetnoe Uchrezhdenie Nauki Institut Neorganicheskoj Khimii Sibirskogo Otdelenija Rossijskoj Akademii Nauk So Ran)

METHOD OF BISMUTH TREATMENT Russian patent published in 2014 - IPC C22B30/06 C22B9/05 C22B3/26 C25C1/22

Abstract RU 2514766 C2

FIELD: metallurgy.

SUBSTANCE: invention relates to metallurgy of rare-earth metals, particularly to fine cleaning of bismuth of radioactive contaminants ²¹⁰Po with the help of hydrochloric acid solutions. In compliance with this method, prior to bismuth electric refining in hydrochloric acid solution, the latter is brought in contact with organic phase containing hexane-1 and activated carbon. Then, obtained bismuth sponge is fused to bubble the melt with inert gas.

EFFECT: high-purity bismuth with low content of ²¹⁰Po.

1 ex

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RU 2 514 766 C2

Authors

Novoselov Igor' Ivanovich

Makarov Igor' Vasil'Evich

Fedotov Valerij Alekseevich

Dates

2014-05-10—Published

2012-06-05—Filed