Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – With regeneration – reclamation – reuse – recycling or...
Patent
1978-01-03
1978-11-28
Corbin, Arthur L.
Paper making and fiber liberation
Processes of chemical liberation, recovery or purification...
With regeneration, reclamation, reuse, recycling or...
162 38, 162 72, 162 90, D21C 106
Patent
active
041274393
ABSTRACT:
By pretreating lignocellulose with an alkaline pretreatment liquor containing anthraquinone or a related compound, prior to alkaline digestion, a higher yield of pulp having a lower lignin content can be produced using less alkali. The pretreatment step is carried out under conditions that ensure survival of at least 50% of the anthraquinone or related compound in the pretreatment liquor, which is separated from the pretreated lignocellulose and reused to pretreat other lignocellulose.
REFERENCES:
patent: 3695994 (1972-10-01), Worster et al.
patent: 4012280 (1977-03-01), Holton
Fujii John S.
Schmidt Fred L.
Whalley William G.
Corbin Arthur L.
Crown Zellerbach Corporation
Horton Corwin R.
Teigland Stanley M.
LandOfFree
Pretreatment of lignocellulose with anthraquinone prior to pulpi does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pretreatment of lignocellulose with anthraquinone prior to pulpi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pretreatment of lignocellulose with anthraquinone prior to pulpi will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-976340