METHOD FOR OBTAINING MICROCELLULOSE Russian patent published in 2016 - IPC C08B15/02 

Abstract RU 2580746 C2

FIELD: chemistry.

SUBSTANCE: invention relates to the method for obtaining microcellulose, which includes the acid hydrolysis of a fibrous cellulose material at the temperature in the range from 140 to 185°C and consistence in the range from 8 to 50% counted per the dry cellulose weight, at which the quantity of added mineral acid constitutes from 0.2 to 2%, preferably from 0.5 to 1.5% of the dry cellulose weight, with the hydrolysis being carried out in a continuous bleaching tower.

EFFECT: invention makes it possible to obtain high-quality microcellulose with the narrow range of the granulometric composition.

13 cl, 5 dwg, 8 tbl, 8 ex

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RU 2 580 746 C2

Authors

Dal Olli

Vankhatalo Kari

Parviajnen Kari

Svedman Mikael

Dates

2016-04-10Published

2011-06-07Filed