Method for the production of cellulose fibers using a two-step p

Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – Utilizing electrical or radiant energy

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162 83, 162 86, D21C 100, D21C 106

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active

039986888

ABSTRACT:
A process for the preparation of cellulose fibers from cellulose containing chips wherein the cellulose containing chips are subjected to a chemical process for the purpose of separating the cellulose from lignin and other extraneous chemicals which prior to digestion of the chips subjecting the chips to a two-step pre-treatment by:

REFERENCES:
patent: 3801432 (1974-04-01), Free
patent: 3830689 (1974-08-01), Rautalahti et al.
Rhydholm; Pulping Processes p. 849 Interscience Publishers, 1965.

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