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2 828 916

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IPC

C22B61/00(2006-01-01)

C01G47/00(2006-01-01)

C22B3/24(2006-01-01)

(21) (22)

Application

2024103255, 2024-02-09

(24)

Start date

2024-02-09

(22)

Actual filing date

2024-02-09

(45)

Published

2024-10-21

(72)

Inventor

Rychkov Vladimir NikolaevichKirillov Evgenii VladimirovichKirillov Sergei VladimirovichBunkov Grigorii MikhailovichBochkareva Zhanna Sergeevna

(73)

Holder

Federal State Autonomous Educational Institution Of Higher Education Ural Federal University Named After The First President Of Russia B.N.Yeltsin

METHOD OF EXTRACTING RHENIUM FROM WASTE SOLUTIONS OF URANIUM PRODUCTION Russian patent published in 2024 - IPC C22B61/00 C01G47/00 C22B3/24

Abstract RU 2828916 C1

FIELD: chemistry.

SUBSTANCE: invention relates to extraction of rhenium from solutions of underground leaching of uranium. Sorption of rhenium is carried out on vinylpyridine ampholyte, which contains functional pyridine anion-exchange groups and cation-exchange groups containing residues of aminophosphonic or aminocarboxylic acids attached directly to pyridine group. Desorption of rhenium from rhenium-saturated vinylpyridine ampholyte is carried out with a desorption solution with content of hydrochloric acid of 300-400 g/dm³.

EFFECT: rhenium desorption with hydrochloric acid solutions enables to concentrate rhenium in a single step in a hydrochloric acid solution of desorption.

1 cl, 6 dwg, 2 ex

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RU 2 828 916 C1

Authors

Rychkov Vladimir Nikolaevich

Kirillov Evgenii Vladimirovich

Kirillov Sergei Vladimirovich

Bunkov Grigorii Mikhailovich

Bochkareva Zhanna Sergeevna

Dates

2024-10-21—Published

2024-02-09—Filed