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2 368 715

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(51)

IPC

D21C3/00(2006-01-01)

D21C3/02(2006-01-01)

D21C9/00(2006-01-01)

(21) (22)

Application

2008116922/12, 2008-04-28

(24)

Start date

2008-04-28

(22)

Actual filing date

2008-04-28

(45)

Published

2009-09-27

(72)

Inventor

Khakimova Firdaves KharisovnaKovtun Tat'Jana NikolaevnaKhakimov Roman RashidovichNoskova Ol'Ga Alekseevna

(73)

Holder

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

CELLULOSE WASHING METHOD Russian patent published in 2009 - IPC D21C3/00 D21C3/02 D21C9/00

Abstract RU 2368715 C1

FIELD: textiles, paper.

SUBSTANCE: method refers to cellulose washing method and can be used in pulp and paper industry to obtain sulfite cellulose when producing paper and cardboard and chemical processing. Cellulose is rinsed with cold water in the presence of organic additive agent SAA of weakly anionic type - compound UMS-1. The present additive is water-based mixture of biodegradable ethoxylated fatty alcohols and non-chlorinated solvents. Additive consumption makes 0.005-0.02% of completely dry pulp weight.

EFFECT: enhancement of cellulose washing efficiency and pulldown of common and hazardous resin content in cellulose.

3 tbl, 15 ex

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RU 2 368 715 C1

Authors

Khakimova Firdaves Kharisovna

Kovtun Tat'Jana Nikolaevna

Khakimov Roman Rashidovich

Noskova Ol'Ga Alekseevna

Dates

2009-09-27—Published

2008-04-28—Filed