FIELD: textiles, paper.
SUBSTANCE: production processes of mechanical wood pulp using refiners are disclosed, and more particularly, the wood-pulp plant is disclosed which is integrated with the neutral-alkaline processes of paper production, generating printing paper from mechanical wood pulp. The waste products are treated with hydrogen peroxide, alkali and an organic stabilising additive immediately before or during refining, that provides improved optical and physical properties of the refined waste products and uses electrical energy more efficiently to achieve the desired quality of the fiber after bleaching for cost-effective production of a wide variety of coated and uncoated printing paper from mechanical wood pulp.
EFFECT: improvement of quality of rejected material.
4 cl, 2 tbl, 12 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD AND SYSTEM FOR IMPROVEMENT OF FIBER PERFORMANCES BY ADDING PROCESSING AGENT IN MECHANICAL PULPING | 2008 |
|
RU2491378C2 |
| PULP PRODUCTION METHOD | 2000 |
|
RU2224060C2 |
| IMPROVED METHOD FOR PRODUCTION OF CELLULOSE, PAPER AND CARDBOARD | 2007 |
|
RU2424388C2 |
| METHOD FOR PRODUCTION OF FIBROUS SEMI-PRODUCT OF MISCANTHUS | 2019 |
|
RU2736428C1 |
| METHOD OF PREPARING BLEACHED CHEMICO-THERMOMECHANICAL PULP | 1999 |
|
RU2153545C1 |
| 0 |
|
SU1567698A1 | |
| METHOD OF PRODUCTION OF WOOD FIBROUS PULP AND WOOD FIBROUS PULP PRODUCED BY THAT METHOD | 2003 |
|
RU2322540C2 |
| METHOD OF PRODUCING PAPER PULP | 2009 |
|
RU2445413C1 |
| 0 |
|
SU1567697A1 | |
| COMPOSITION AND METHOD FOR TREATING FIBROUS MATERIAL | 2008 |
|
RU2439233C2 |
