Method of treating cellulose pulps

Details Method of treating cellulose pulps Method of treating cellulose pulps

D - Textiles, Paper

21

C

D21C 9/00 (2006.01) D21C 9/10 (2006.01)

Patent

CA 2160430

Pulp, in particular hardwood pulp, is delignified in cooking and, when needed, further delignified with oxygen to a kappa number below 24, preferably below 14. The delignified pulp is heated and treated at a temperature of about 85 to 150°C, preferably 90 to 110°C, at a pH of about 2 to 5 in order to decrease the kappa number by 2 to 9 units by removing at least 50% of the hexenuronic acid groups in the pulp. The treated pulp is bleached in at least one bleaching stage.

Affiliated with

Also associated with

Rating

Method of treating cellulose pulps does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of treating cellulose pulps, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of treating cellulose pulps will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1456892