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2 474 635

(13)

(51)

IPC

D21C3/00(2006-01-01)

(21) (22)

Application

2011144761/12, 2011-11-03

(24)

Start date

2011-11-03

(22)

Actual filing date

2011-11-03

(45)

Published

2013-02-10

(72)

Inventor

Ivakhnov Artem DmitrievichSkrebets Tat'Jana EhduardovnaBogolitsyn Konstantin Grigor'Evich

(73)

Holder

Federal'Noe Gosudarstvennoe Avtonomnoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Federal'Nyj Universitet Imeni M.V. Lomonosova"

METHOD OF PRODUCING CELLULOSE WOOD PULP Russian patent published in 2013 - IPC D21C3/00

Abstract RU 2474635 C1

FIELD: textiles, paper.

SUBSTANCE: method includes cooking of cellulose containing raw material in the presence of hydrogen peroxide, followed by alkali extraction and washing off. Carbon dioxide in the supercritical state is used as a medium, and the hydrogen peroxide is added in the form of a solution containing at least 30% hydrogen peroxide. Consumption of hydrogen peroxide for cooking is at least 65% by weight of oven-dry wood.

EFFECT: invention enables to produce cellulose wood pulp which has high mechanical strength, to improve the environmental situation near the manufacturing enterprises.

5 cl, 6 ex, 1 tbl

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RU 2 474 635 C1

Authors

Ivakhnov Artem Dmitrievich

Skrebets Tat'Jana Ehduardovna

Bogolitsyn Konstantin Grigor'Evich

Dates

2013-02-10—Published

2011-11-03—Filed