FIELD: paper-and-pulp industry. SUBSTANCE: cellulose is produced by pulping cellulose-containing vegetable crude material using delignification catalyst, said material, in particular, being waste from production of anthraquinone obtained via catalytic vapor-phase oxidation of anthracene, which waste is composition containing anthraquinone, phthalic anhydride, phenanthrene, anthracene, pyromellitic anhydride, carbazole, alkylanthraquinone, and other admixtures in specified proportions. EFFECT: enhanced delignification efficiency. 5 tbl, 26 ex
| Title | Year | Author | Number |
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| 0 |
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SU361168A1 |
