Method of producing cellulose

Details Method of producing cellulose Method of producing cellulose

D - Textiles, Paper

21

B

260/214

D21B 1/16 (2006.01) D21C 3/02 (2006.01) D21C 3/26 (2006.01)

Patent

CA 1066697

ABSTRACT OF THE DISCLOSURE The present invention provides a method of manufacturing a chemical pulp from a fibrous raw material which comprises homogeneously impregnating the fibrous raw material with an alkali solution of weaker chemical activity whereby to minimize delignification of said raw material, subjecting said alkali impregnated raw material to mechanical defibration and treating said defibrated raw material with an alkali solution of stronger chemical activity to effect delignification thereof.

259578

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