| 摘要 |
FIELD: pulp-and-paper industry, in particular, production of cellulose from cellulose semi-finished products. ^ SUBSTANCE: method involves cooking ground larch wood in mixture having 37 wt% of hydrogen peroxide and 30 wt% of acetic acid used in mole ratio of 0.3-0.5 in the presence of molybdic acid catalyst used in an amount of 0.5-0.7% by weight of perfectly dry wood; providing cooking at liquor ratio of 7.5:1 - 10:1 and at temperature of 110-140°C for 2-3 hours. ^ EFFECT: improved quality of cellulose semi-finished product, reduced consumption of reactants and catalyst, wider range of available raw materials owing to utilization of larch wood, and manufacture of cellulose semi-finished product without preliminarily providing of arabinogalactane extraction stage. ^ 3 tbl, 22 ex |
