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2 395 636

(13)

(51)

IPC

D21B1/36(2006-01-01)

D21C1/04(2006-01-01)

C08B1/00(2006-01-01)

C08B15/02(2006-01-01)

(21) (22)

Application

2009126875/12, 2009-07-13

(24)

Start date

2009-07-13

(22)

Actual filing date

2009-07-13

(45)

Published

2010-07-27

(72)

Inventor

Kuznetsov Boris NikolaevichDanilov Vladimir Grigor'EvichJatsenkova Ol'Ga VladimirovnaIbragimova Ekaterina Farakhdinovna

(73)

Holder

Uchrezhdenie Rossijskoj Akademii Nauk Institut Khimii I Khimicheskoj Tekhnologii Sibirskogo Otdelenija Ran So Ran)

METHOD FOR PRODUCTION OF MICROCRYSTALLINE CELLULOSE FROM AUTOHYDROLISED WOOD Russian patent published in 2010 - IPC D21B1/36 D21C1/04 C08B1/00 C08B15/02

Abstract RU 2395636 C1

FIELD: textile, paper.

SUBSTANCE: method relates to production of microcrystalline cellulose (MCC), which is widely used in pharmaceutical, food and perfume industries. Used as stabiliser of water-latex paints and emulsions and as sorbent for chromatography. In medicine MCC is used as biologically active supplement and stabiliser of medical agents. Method for production of microcrystalline cellulose includes autohydrolysis of ground wood material. Autohydrolysis is carried out by water steam at 180-240°C for 2-3 min. Autohydrolised wood is treated with boiling water. Then with solution that contains CH₃COOH, H₂O₂, H₂SO₄, at the temperature of 100-110°C for 2.5-3 hours.

EFFECT: increased efficiency of method.

12 ex, 1 tbl, 1 dwg

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RU 2 395 636 C1

Authors

Kuznetsov Boris Nikolaevich

Danilov Vladimir Grigor'Evich

Jatsenkova Ol'Ga Vladimirovna

Ibragimova Ekaterina Farakhdinovna

Dates

2010-07-27—Published

2009-07-13—Filed