FIELD: paper-and-pulp industry. SUBSTANCE: cooking liquor containing 37% hydrogen peroxide and acetic acid at molar ratio 90.3-0.5):1 and sulfuric acid catalyst in quantity 1.5 to 2.5% of the weight of absolutely dry wood. Cooking is carried out for 2 to 5 h at water duty 10:1 and temperature 120-140 C. EFFECT: improved quality of intermediate due to higher content of cellulose, reduced consumption of reagents, and improved environmental condition. 3 tbl, 21 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PREPARING CELLULOSE HALF-FINISHED PRODUCT | 2001 |
|
RU2181807C1 |
| METHOD FOR PRODUCING OF CELLULOSE SEMI-FINISHED PRODUCT FROM LARCH WOOD | 2004 |
|
RU2251602C1 |
| METHOD OF CELLULOSE SEMI-FINISHED PRODUCT PRODUCTION | 2003 |
|
RU2217537C1 |
| METHOD OF CELLULOSE OBTAINING | 2013 |
|
RU2547689C1 |
| METHOD OF PRODUCTION OF CELLULOSE | 2012 |
|
RU2490384C1 |
| METHOD FOR PRODUCING MICROCRYSTALLINE CELLULOSE | 2002 |
|
RU2203995C1 |
| CELLULOSE PRODUCTION PROCESS | 2000 |
|
RU2158326C1 |
| METHOD OF PRODUCING CELLULOSE | 2015 |
|
RU2590882C1 |
| METHOD OF PRODUCING CELLULOSE STOCK FROM HARDWOOD | 1992 |
|
RU2092641C1 |
| PROCESS FOR PREPARING CELLULOSE SEMIFINISHED PRODUCT FROM WOOD OF DECIDUOUS VARIETIES | 1992 |
|
RU2019609C1 |
