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2 668 864

(13)

(51)

IPC

B01J20/32(2006-01-01)

B01J20/06(2006-01-01)

B01J20/26(2006-01-01)

(21) (22)

Application

2017129170, 2017-08-15

(24)

Start date

2017-08-15

(22)

Actual filing date

2017-08-15

(45)

Published

2018-10-03

(72)

Inventor

Egorov Vitalij ValerevichMakovskaya Olga YurevnaMamyachenkov Sergej Vladimirovich

(73)

Holder

Federalnoe Gosudarstvennoe Avtonomnoe Obrazovatelnoe Uchrezhdenie Vysshego Obrazovaniya Federalnyj Universitet Imeni Pervogo Prezidenta Rossii B.N. Eltsina"

METHOD OF MODIFICATION OF CATION-EXCHANGE SORBENTS Russian patent published in 2018 - IPC B01J20/32 B01J20/06 B01J20/26

Abstract RU 2668864 C1

FIELD: technological processes.

SUBSTANCE: invention relates to the production of polymer-inorganic sorbents. Method is proposed that includes the saturation of the cation-exchange sorbent with iron (III) ions and the subsequent treatment of the sorbent in a solution of sodium chloride at an elevated temperature with the formation of nanosized crystals of iron oxyhydrate β-modification (akaganeite).

EFFECT: obtaining a sorbent effective for removing F^- and Cl^- from solutions of complex salt composition.

1 cl, 1 tbl, 4 ex

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RU 2 668 864 C1

Authors

Egorov Vitalij Valerevich

Makovskaya Olga Yurevna

Mamyachenkov Sergej Vladimirovich

Dates

2018-10-03—Published

2017-08-15—Filed