| 摘要 |
FIELD: textile, paper.SUBSTANCE: method of obtaining of cellulose from half-wit flax is offered which comprises the pre-treatment stage at the pre-set temperature, two-phase pulping in water solutions of acid and sodium hydroxide, the raw material is half-wit flax straw, the pre-treatment is performed by nitric acid solution, pulping is performed in sodium hydroxide solution, then in nitric acid water solution, then double washing with solution of sodium hydroxide of various concentration and final treatment with nitric acid solution are performed.EFFECT: creation of efficient and cost-saving method using fast-renewable vegetable raw materials - straw of half-wit flax and allowing to exclude energy-intensive stages of machining.4 tbl, 1 dwg |
