| 摘要 |
FIELD: paper-and-pulp industry. ^ SUBSTANCE: invention provides cellulose production process that can be used in pulping carried out by alkaline, neutral, and neutral sulfite methods. Cellulose-containing stock is pulped in presence of catalyst, in particular waste produced in production of anthraquinone via catalytic vapor-phase oxidation of anthracene. In this case, anthraquinone production waste is preliminarily exposed for 3-10 min to ultrasonic field and simultaneously treated with white lye at lye-to-anthraquinone production waste (1-4):1. ^ EFFECT: improved pulping characteristics for cellulose-containing vegetable stock. ^ 2 cl, 1 tbl, 22 ex |
