Process for pulping lignocellulose-containing material

Details Process for pulping lignocellulose-containing material Process for pulping lignocellulose-containing material

D - Textiles, Paper

21

C

9/29

D21C 3/20 (2006.01) D21C 3/04 (2006.01)

Patent

CA 1300324

T 156 FF ABSTRACT PROCESS FOR PULPING LIGNOCELLULOSE-CONTAINING MATERIAL A process for the pulping of lignocellulose-containing material, wherein the material is contacted with a pulping medium containing at least 75% by weight of a solvent system, which solvent system comprises from 20 to 95% by weight formic acid; from 5 to 80% by weight of at least one member selected from primary alcohols having from 1 to 3 carbon atoms and esters of formic acid with primary alcohols having from 1 to 3 carbon atoms; and up to 70% by weight of at least one component selected from acetic acid and esters of acetic acid with primary alcohols having from 1 to 3 carbon atoms; and allowing the material to digest at a temperature in the range of from 140 to 200°C. PS01008

577094

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