Method of making sulphate pulp

Details Method of making sulphate pulp Method of making sulphate pulp

1985-10-04

1987-09-01

Alvo, Steve

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

With regeneration, reclamation, reuse, recycling or...

162 39, 162 60, 162 82, 162 86, D21C 326, D21C 1100

Patent

active

046907319

ABSTRACT:
A modified batch cooking technique for making sulfate pulp with a high degree of delignification or with a normal degree of delignification but with increased pulp viscosity. This is effected by one or several displacements of the liquor in the digester with liquor of the same temperature as the cooking liquor but with a lower lignin content.

REFERENCES:
patent: 1645754 (1927-10-01), Howell, Jr.
patent: 1816343 (1931-07-01), Richter
patent: 2041597 (1936-05-01), Dunbar
patent: 2195378 (1940-03-01), Dunbar
patent: 2849315 (1958-08-01), Haglund
patent: 3294623 (1966-12-01), Brinkley, Jr. et al.
patent: 3313677 (1967-04-01), Carr
patent: 3467573 (1969-09-01), Vogel
patent: 4236961 (1980-12-01), Green
Modified Kraft Processes for Softwood Bleached-Grade Pulp, Tappi, Jul. 1979, pp. 49-51.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1263657