FIELD: pulp industry.
SUBSTANCE: invention relates to a method for producing cellulose from material containing lignocellulose by means of sulfite decomposition or sulfate decomposition in the presence of a salt of dithionous acid, characterized in that the salt of dithionous acid is used in an amount in the range of 0.1 to 4.0 wt% with respect to the amount of kiln-dry material containing lignocellulose.
EFFECT: process for producing cellulose from material containing lignocellulose.
6 cl, 5 tbl, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING CELLULOSE FOR MANUFACTURE OF VISCOSE FIBER | 1993 |
|
RU2122055C1 |
| METHOD OF WOOD RAW MATERIALS PROCESSING | 0 |
|
SU1799408A3 |
| PULP PREPARATION METHOD | 1997 |
|
RU2135665C1 |
| 0 |
|
SU558995A1 | |
| METHOD FOR OBTAINING MICROCELLULOSE | 2011 |
|
RU2579395C2 |
| METHOD OF ALTERING, DESTROYING, AND BLEACHING LIGNIN, LIGNIN- CONTAINING MATERIAL, OR RELATED MATERIALS | 1994 |
|
RU2121025C1 |
| METHOD FOR INTEGRATED PRODUCTION OF CELLULOSE AND REUSABLE LOW-MOLECULAR WEIGHT MATERIALS | 2009 |
|
RU2535222C2 |
| METHOD FOR PRODUCING CELLULOSE | 1991 |
|
RU2037594C1 |
| METHOD OF DETERMINING THE YIELD OF FIBROUS CELLULOSE-CONTAINING SEMI-FINISHED PRODUCT | 0 |
|
SU1044702A1 |
| METHOD AND SYSTEM OF PRODUCING SOLUBLE CELLULOSE MASS WITH HIGH CONTENT OF ALPHA-CELLULOSE | 2010 |
|
RU2535804C2 |
