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2 520 493

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(51)

IPC

C08B37/08(2006-01-01)

(21) (22)

Application

2012148847/05, 2012-11-16

(24)

Start date

2012-11-16

(22)

Actual filing date

2012-11-16

(45)

Published

2014-06-27

(72)

Inventor

Akhmetova Vnira RakhimovnaMinnebaev Azamat BareevichRakhimova Elena BorisovnaAnpilogova Galina Rudol'FovnaAbdullin Marat Ibragimovich

(73)

Holder

Federal'Noe Gosudarstvennoe Bjudzhetnoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Gosudarstvennyj Universitet"

METHOD OF OBTAINING WATER-INSOLUBLE SULPHUR-CONTAINING CHITOSAN-BASED BIOMATERIAL Russian patent published in 2014 - IPC C08B37/08

Abstract RU 2520493 C1

FIELD: chemistry.

SUBSTANCE: invention relates to the field of organic synthesis. A method of obtaining a water-insoluble sulphur-containing chitosan-based biopolymer includes interaction of chitosan with a thiomethylating agent, preliminarily obtained by saturation of a formaldehyde solution with gaseous H₂S, with molar ratio chitosan: formaldehyde: hydrogen sulphide 1:6:4, at a temperature of 60°C for 20-25 hours.

EFFECT: invention ensures obtaining the water-insoluble sulphur-containing chitosan-based biopolymer, which possesses a complexing activity to ions of noble metals (Pd, Pt).

1 ex, 1 tbl

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RU 2 520 493 C1

Authors

Akhmetova Vnira Rakhimovna

Minnebaev Azamat Bareevich

Rakhimova Elena Borisovna

Anpilogova Galina Rudol'Fovna

Abdullin Marat Ibragimovich

Dates

2014-06-27—Published

2012-11-16—Filed