FIELD: chemistry.
SUBSTANCE: invention relates to a method of producing microfibrillar pulp, which comprises steps of: (a) preparing a suspension comprising a cellulose derivative selected from carboxymethyl cellulose (CMC), oxidised TEMPO cellulose or microcrystalline cellulose in a liquid phase which includes an organic solvent, wherein the organic solvent is an alcohol, (b) of the cellulose derivative suspension mechanical treatment by homogenisation or fluidisation and production of microfibrillar cellulose and (c) separating at least a portion of the liquid phase from the microfibrillated cellulose and producing microfibrillar pulp with a solids content of > 30 wt. %.
EFFECT: invention discloses a method of producing microfibrillar cellulose and microfibrillated cellulose.
9 cl, 1 dwg, 3 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR PRODUCING A SUSPENSION OF MICROFIBRILLATED CELLULOSE, MICROFIBRILLATED CELLULOSE AND ITS USE | 2015 |
|
RU2676987C2 |
| METHOD FOR PRODUCING MICROFIBRILLATED CELLULOSE | 2013 |
|
RU2660009C2 |
| PROCESS FOR TREATING MICROFIBRILLATED CELLULOSE AND MICROFIBRILLATED CELLULOSE TREATED ACCORDING TO PROCESS | 2012 |
|
RU2603956C2 |
| PROCESS FOR TREATING CELLULOSE AND CELLULOSE TREATED ACCORDING TO PROCESS | 2012 |
|
RU2603957C2 |
| BINDER COMPOSITION AND METHOD COMPRISING MICROFIBRILLATED CELLULOSE AND RECYCLED CELLULOSE MATERIALS | 2020 |
|
RU2823790C1 |
| CELLULOSE DERIVATIVES | 2018 |
|
RU2781048C2 |
| METHOD OF OBTAINING MODIFIED CELLULOSE | 2010 |
|
RU2535688C2 |
| PRODUCTION OF MICROFIBRILLAR CELLULOSE | 2010 |
|
RU2530022C2 |
| REDISPERSED MICROFIBRILLATED CELLULOSE | 2017 |
|
RU2791167C1 |
| RECURRENTLY DISPERSED MICROFIBRILLATED CELLULOSE | 2017 |
|
RU2697353C1 |
