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2 221 096

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IPC

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Application

2003100069/12, 2003-01-09

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Start date

2003-01-09

(22)

Actual filing date

2003-01-09

(45)

Published

2004-01-10

(72)

Inventor

Amitin A.V.Bljakhman L.I.Krylova E.K.Sheveljuk Andrej Evgen'EvichShtejnberg Leon Jakovlevich

(73)

Holder

Obshchestvo S Ogranichennoj Otvetstvennost'Ju I Maleinovyj Angidridy, Ehkologija"

CELLULOSE PRODUCTION PROCESS Russian patent published in 2004 - IPC

Abstract RU 2221096 C1

FIELD: paper-and-pulp industry. SUBSTANCE: cellulose is produced by pulping cellulose-containing vegetable crude material using delignification catalyst, said material, in particular, being waste from production of anthraquinone obtained via catalytic vapor-phase oxidation of anthracene, which waste is composition containing anthraquinone, phthalic anhydride, phenanthrene, anthracene, pyromellitic anhydride, carbazole, alkylanthraquinone, and other admixtures in specified proportions. EFFECT: enhanced delignification efficiency. 5 tbl, 26 ex

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RU 2 221 096 C1

Authors

Amitin A.V.

Bljakhman L.I.

Krylova E.K.

Sheveljuk Andrej Evgen'Evich

Shtejnberg Leon Jakovlevich

Dates

2004-01-10—Published

2003-01-09—Filed