Method of producing a bleached pulp

Details Method of producing a bleached pulp Method of producing a bleached pulp

D - Textiles, Paper

21

C

D21C 9/14 (2006.01) D21C 9/10 (2006.01)

Patent

CA 2246107

A bleached pulp having a high brightness and a satisfactory pulp viscosity is produced from a lignocellulosic material with a high efficiency by subjecting an aqueous slurry of a pulp to a bleaching step including at least one stage in which the pulp is bleached with chlorine dioxide under a pressure of, for example, 0.0980 to 0.883 MPa (1.0 to 9.0 kg/cm2), created by a compressed gas, preferably at a pH of 2 to 5, at a temperature of 50 to 120°C and in a pulp consistency of 5 to 40%.

Production à haut rendement d'une pâte blanchie, d'une grande blancheur et de viscosité satisfaisante, à partir d'une matière lignocellulosique, en soumettant une pâte sous forme de suspension aqueuse épaisse à une étape de blanchiment, comprenant au moins une étape où la pâte est blanchie avec du dioxyde de chlore sous une pression, par exemple de 0,0980 à 0,883 MPa (1,0 à 9,0 kg/cm2), produite par un gaz comprimé, préférablement à un pH de 2 à 5, à une température de 50 à 120 degrés C, et à une consistance de 5 à 40 % pour la pâte.

Affiliated with

Also associated with

Rating

Method of producing a bleached pulp 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 producing a bleached pulp, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of producing a bleached pulp will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-2033020