FIELD: chemistry.
SUBSTANCE: microcrystalline cellulose is obtained by obtained processing with high shearing force at higher temperature and higher pressure of reaction mixture, which consists of cellulose material, compound, containing active oxygen, and water, during period of time, efficient for depolymerisation of cellulose material to medium degree of depolymerisation 400 or lower, either where pressure on product output is within the range approximately from 137.9 to 10342.1 kPa, or where pH value of reaction mixture in process of extrusion is in interval approximately from 8 to 2. Mixture can be subjected to additional depolymerisation after being processed with high shearing force, by standing it without cooling. Hydrogen peroxide is suitable compound, containing active oxygen. Extruder is typical device of high shearing force.
EFFECT: improved method of obtaining microcrystalline cellulose.
32 cl, 5 ex, 4 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING HYDROGEL OF NANOCRYSTALLINE CELLULOSE | 2010 |
|
RU2494109C2 |
| METHOD OF PRODUCING MICROCRYSTALLINE CELLULOSE | 2016 |
|
RU2620797C1 |
| METHOD OF PRODUCING MICROCRYSTALLINE CELLULOSE | 2023 |
|
RU2815209C1 |
| METHOD OF MANUFACTURING DISPERSED NATURAL POLYMER | 2012 |
|
RU2522564C2 |
| USE OF SURFACTANTS FOR PULP PROCESSING AND IMPROVEMENT OF CRAFT PULP INTRODUCTION IN FIBRE FOR OBTAINING VISCOOSE AND OTHER SECONDARY FIBRE PRODUCTS | 2013 |
|
RU2636306C2 |
| METHOD FOR PRODUCING MICROCRYSTALLINE CELLULOSE FROM INDUSTRIAL HEMP TRUST | 2022 |
|
RU2804999C1 |
| METHOD FOR PRODUCTION OF MICROCRYSTALLINE CELLULOSE FROM AUTOHYDROLISED WOOD | 2009 |
|
RU2395636C1 |
| PROCESS FOR PRODUCING POWDERED CELLULOSE OR MICROCRYSTALLINE CELLULOSE | 2023 |
|
RU2804650C1 |
| METHOD OF MICROCRYSTALLINE AND POWDERED CELLULOSE PRODUCTION | 0 |
|
SU1792942A1 |
| METHOD FOR DISSOLUTION OF LIGNOCELLULOSE MATERIALS | 2011 |
|
RU2577836C2 |
