Pulping using organic solvents is an alternative to kraft pulping and can reduce environmental pollutants. Ethanol a potential cooking liquor, as it improves the penetration of chemical due its low surface tension, be recovered via distillation. The structure alpha-cellulose content need controlled during bleaching processes prepare dissolving pulp. Therefore, effect ethanol on efficiency caust...

Kraft pulping, organosolv process and acid hydrolysis were applied on an elm clone. The solubilized lignins recovered analyzed. pulping led to with higher phenolic OH content as result of extensive cleavage ?-O-4? linkages, revealed by 13C solid state 13C?1H heteronuclear single quantum coherence nuclear magnetic resonance. This depolymerization also yielded lower molecular weight inferred size...

The chemical composition of several non-woody plant fibers (bast fibers from flax, hemp, kenaf, jute; leaf fibers from sisal, abaca and curaua; and giant reed), which are used as raw materials for pulp and papermaking, has been evaluated. Particular attention was paid to the composition of the lipophilic compounds and the structure of the lignin polymer since they are important components of th...