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2 620 595

(13)

(51)

IPC

C08B37/14(2006-01-01)

C07H11/00(2006-01-01)

(21) (22)

Application

2016125092, 2016-06-22

(24)

Start date

2016-06-22

(22)

Actual filing date

2016-06-22

(45)

Published

2017-05-29

(72)

Inventor

Levdanskij Vladimir AleksandrovichLevdanskij Aleksandr VladimirovichSkvortsova Galina PavlovnaKuznetsov Boris Nikolaevich

(73)

Holder

Federalnoe Gosudarstvennoe Byudzhetnoe Nauchnoe Uchrezhdenie Issledovatelskij Tsentr Nauchnyj Tsentr Sibirskogo Otdeleniya Rossijskoj Akademii Nauk" Knts So Ran)

METHOD OF SULFATE OF BIRCH WOOD XILANE Russian patent published in 2017 - IPC C08B37/14 C07H11/00

Abstract RU 2620595 C1

FIELD: chemistry.

SUBSTANCE: method for sulfating xylan birch wood with chlorosulfonic acid in an organic solvent is characterized in that the sulfation is carried out in 1,4-dioxane at a temperature of 20-40°C for 3-6 hours, and xylan sulfate is isolated after neutralisation of the reaction mass with a 3% aqueous solution of sodium hydroxide, followed by purification by dialysis.

EFFECT: effective way of sulphating xylan.

1 tbl, 9 ex

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RU 2 620 595 C1

Authors

Levdanskij Vladimir Aleksandrovich

Levdanskij Aleksandr Vladimirovich

Skvortsova Galina Pavlovna

Kuznetsov Boris Nikolaevich

Dates

2017-05-29—Published

2016-06-22—Filed