MODIFIED CELLULOSE FROM CHEMICAL CRAFT-FIBRE AND METHODS OF ITS MANUFACTURING AND APPLICATION Russian patent published in 2015 - IPC D21C9/10

Abstract RU 2549968 C2

FIELD: chemistry.

SUBSTANCE: invention relates to chemical modification of cellulose fibre. Method of obtaining craft-fibre includes: bleaching craft-cellulose with application of multi-stage process of bleaching and oxidation of craft-cellulose in the process of realisation of one or more stages of multi-stage bleaching process with application of peroxide and catalyst in acidic medium. Multi-stage bleaching process includes, at least, one stage of bleaching, following oxidation stage, where said, at least, one stage of bleaching, following oxidation stage, is not alkaline stage of bleaching.

EFFECT: obtaining of craft-cellulose without wide degradation and improvement of chemical properties are provided.

22 cl, 2 dwg, 28 tbl

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RU 2 549 968 C2

Authors

Nonni Artur Dzh.

Kurshen Charl'Z Eh.

Sloun Kristofer Majkl

Abits Piter R.

Dates

2015-05-10—Published

2010-05-28—Filed