Delignification of lignocellulosic material with an alkaline liq

Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – Gas – vapor or mist contact

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8111, 162 72, 162 82, 162 90, D21C 302, D21C 320, D21C 910

Patent

active

040122808

ABSTRACT:
Delignification of lignocellulosic material by treatment with an alkaline liquor in the presence of a cyclic keto compound such as anthraquinone.

REFERENCES:
patent: 3888727 (1975-06-01), Kenig

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