D - Textiles – Paper – 21 – C
Patent
D - Textiles, Paper
21
C
92/59, 9/70
D21C 7/00 (2006.01) D21C 1/00 (2006.01) D21C 7/06 (2006.01)
Patent
CA 1074609
ABSTRACT OF THE DISCLOSURE An apparatus and method for the displacement impregnation of cellulosic chips material with digesting liquid. Cellulosic chips material and liquid are fed from a source to a high pressure transfer valve whereat the pressure of the chips and liquid is boosted. The chips are fed from the high pressure transfer valve through a feed system to the topmost portion of a vertical treatment vessel, the vessel having a topmost portion and an impregna- tion zone in an upper portion thereof below the topmost portion. A countercurrent flow of digesting liquid in the vessel impregnation zone is established to impregnate the chips material with digesting liquid, and displace the water and minerals therefrom, and liquid withdrawn into the feed system. A chips plug is established at the vessel top through which all withdrawn liquid must pass. Digesting liquid may be supplied to an end portion of the high pressure treatment valve for maintaining the PH of liquid around the high pressure transfer valve at 8 or above.
280980
LandOfFree
Displacement impregnation does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Displacement impregnation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Displacement impregnation will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1152293