Process for bleaching pulp or paper

Details Process for bleaching pulp or paper Process for bleaching pulp or paper

D - Textiles, Paper

21

C

D21C 9/10 (2006.01)

Patent

CA 2418996

A process for bleaching substantially lignin-free pulp or paper in a single- stage bleaching process or multi-stage bleaching process; comprising contacting said substantially lignin-free pulp or paper with an aqueous reductive bleaching solution comprising hydroxymethane sulfinic acid during a reductive bleaching stage for sufficient amount of time to at least partially bleach said substantially lignin-free pulp or paper.

Divulgation d'un procédé en une ou plusieurs étapes pour le blanchiment de papier ou de pâte pratiquement exempt de lignine. Ce procédé comprend la mise en contact dudit papier ou de ladite pâte pratiquement exempt de lignine avec une solution aqueuse de blanchiment réducteur comprenant de l'acide hydroxyméthanesulfinique lors d'une étape de blanchiment réducteur, pendant une durée suffisante pour blanchir au moins partiellement ledit papier ou ladite pâte pratiquement exempt de lignine.

Affiliated with

Also associated with

Rating

Process for bleaching pulp or paper does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for bleaching pulp or paper, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for bleaching pulp or paper will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1554761