FIELD: pulp-and-paper industry. SUBSTANCE: method involves primary treatment of waste paper mass with chemicals in hydraulic splitter for 3-5 min at temperature of 60- 70 C, with rotor being stopped. Chemicals are sodium hydroxide, sodium silicate, liquid soap and syntanol, with said components being used at predetermined ratio; tempering waste paper mass for 35-40 min, with rotor being switched on; adding 3-4% of hydrogen peroxide at the end of tempering stage. Method may be used for manufacture of sanitary and hygienic paper as well as other types of paper possessing increased absorbing capacity. EFFECT: increased efficiency and improved consumer properties of paper. 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| WASTE PAPER MASS PROCESSING METHOD | 2006 |
|
RU2305146C1 |
| METHOD OF REMOVING PRINTING INK FROM WASTE PAPER | 2020 |
|
RU2744563C1 |
| METHOD FOR ALKALI TREATMENT OF PRINTED PAPER | 2010 |
|
RU2435892C1 |
| PRINTED PAPER WASTE PROCESSING METHOD | 0 |
|
SU717195A1 |
| PROCESSING METHOD OF CELLULOSE-CONTAINING WASTES | 2018 |
|
RU2687982C1 |
| METHOD OF REMOVING PRINTING INK FROM WASTE PRINTED PAPER | 0 |
|
SU1052594A1 |
| METHOD OF PREPARING WASTE PAPER MASS FOR MAKING TISSUE PAPER | 0 |
|
SU988941A1 |
| METHOD FOR REFINING PRINTED WASTE PAPER | 0 |
|
SU926130A1 |
| PAPER PULP FOR PRODUCING BASE PAPER FOR IMPREGNATION WITH INCREASED MOISTURE CAPACITY | 2023 |
|
RU2809509C1 |
| METHOD OF PREPARING PULP FROM WASTE PAPER FOR MANUFACTURING PAPER AND CARDBOARD | 2000 |
|
RU2154703C1 |
