METHOD FOR CELLULOSE PRODUCTION Russian patent published in 2010 - IPC D21C5/00 D21C1/06 D21C9/16 

FIELD: paper industry.

SUBSTANCE: cellulose containing material from herbaceous plants is soaked in alkaline solution, washed, bleached, again washed, squeezed and dried. After soaking thermal-mechanical-chemical treatment is carried out in double-auger device, which consists of heated working chamber with impermeable wall and two parallel joined shafts arranged in it. Alternating injection auger and grinding cam tips are installed on shafts. At the same time prior to washing they additionally execute thermal-mechanical-chemical treatment in double-auger device, on shafts of which there are alternating injection and braking auger tips.

EFFECT: invention provides for cost-efficient method of cellulose making.

2 cl, 1 tbl