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2 318 940

(13)

(51)

IPC

D21C3/00(2006-01-01)

D21C3/04(2006-01-01)

(21) (22)

Application

2006125856/12, 2006-07-17

(24)

Start date

2006-07-17

(22)

Actual filing date

2006-07-17

(45)

Published

2008-03-10

(72)

Inventor

Khakimova Firdaves KharisovnaKovtun Tat'Jana NikolaevnaNoskova Ol'Ga Alekseevna

(73)

Holder

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

METHOD FOR PRODUCING OF CELLULOSE Russian patent published in 2008 - IPC D21C3/00 D21C3/04

Abstract RU 2318940 C1

FIELD: pulp-and-paper industry, in particular, production of sulfite cellulose.

SUBSTANCE: method involves mixing fir tree and hardwood chip; performing sulfite pulping of mixture and washing resulted pulp, with young thin birch wood being used as hardwood chip produced after wood care cuttings in an amount making 10-60% by total amount of raw wood material.

EFFECT: simplified method for producing of cellulose, wider range of raw material base and reduced cellulose production costs.

1 tbl, 8 ex

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RU 2 318 940 C1

Authors

Khakimova Firdaves Kharisovna

Kovtun Tat'Jana Nikolaevna

Noskova Ol'Ga Alekseevna

Dates

2008-03-10—Published

2006-07-17—Filed