Delignification and bleaching of a cellulose pulp with an...

Details Delignification and bleaching of a cellulose pulp with an... Delignification and bleaching of a cellulose pulp with an...

D - Textiles, Paper

21

C

9/22

D21C 9/12 (2006.01) D21C 9/14 (2006.01)

Patent

CA 1282209

Abstract of the Disclosure An improved process for bleaching and delignifying cellulose pulp. The process comprises subjecting the pulp to a bleaching stage followed by washing, and thereafter extracting the bleached pulp as received from the bleaching stage in a caustic extraction stage in the presence of oxygen and hypochlorite. The preferred embodiment is a sequential treatment of the bleached pulp with oxygen and hypochlorite without a pulp washing step between chemical additions. The process is characterized by enhanced delignification with high brightness and high viscosity. The process is further characterized by extraction stage filtrates of improved environmental characteristics.

523099

Affiliated with

Also associated with

Rating

Delignification and bleaching of a cellulose pulp with an... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Delignification and bleaching of a cellulose pulp with an..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Delignification and bleaching of a cellulose pulp with an... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1259253