Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – Treatment with particular chemical
Patent
1997-11-17
2000-03-14
Alvo, Steven
Paper making and fiber liberation
Processes of chemical liberation, recovery or purification...
Treatment with particular chemical
162 80, 536 41, D21C 302, D21C 320
Patent
active
060368179
ABSTRACT:
The efficiency by which pulp cooking liquor components penetrate the wood and enable lignin and resins to be removed from the cellulosic materials is increased by contacting wood chips and the like with a liquid mixture comprised of white liquor containing at least one surfactant selected from the group consisting of a polymethylalkylsiloxane; a co- and terpolymer of silicone and a polyhydric alcohol; an alkoxylated aryl phosphate; an alkoxylated branched alkyl phosphate; an alkoxylated branched alcohol; an alkyl polyglycoside, an alkoxylated alkyl polyglycoside; a mixture of alkali metal salts of alkyl aromatic sulfate, a sulfosuccinate and a silicone; and combinations thereof; for a residence time effective to extract resinous components without substantial degradation of cellulose and thereafter heating at least a portion of the resulting mixture and wood chips.
REFERENCES:
patent: 3147179 (1964-09-01), Simmons et al.
patent: 3280160 (1966-10-01), Bailey
patent: 4673460 (1987-06-01), Raff
patent: 5250152 (1993-10-01), Ling et al.
patent: 5266690 (1993-11-01), McCurry et al.
patent: 5380464 (1995-01-01), McGee et al.
Bowker Barbara Balos
Devore David I.
Palmer John J.
Saint Victor Marie-Esther
Stine Vincent T.
Alvo Steven
Drach John E.
Henkel Corporation
Jaeschke Wayne C.
Trzaska Steven J.
LandOfFree
Composition containing a polymethylalkyl siloxane for enhancing does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Composition containing a polymethylalkyl siloxane for enhancing , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Composition containing a polymethylalkyl siloxane for enhancing will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-165406