CELLULOSE PRODUCTION PROCESS

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...

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Bibliographische Detailangaben
Hauptverfasser:	SHEVELJUK ANDREJ EVGEN'EVICH, BLJAKHMAN L.I, AMITIN A.V, KRYLOVA E.K, SHTEJNBERG LEON JAKOVLEVICH
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	APPARATUS THEREFOR PAPER-MAKING PRODUCTION OF CELLULOSE PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS REGENERATION OF PULPING LIQUORS TEXTILES
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Beschreibung
Zusammenfassung:	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