Process of pulping and bleaching fibrous plant material with ter

Details Process of pulping and bleaching fibrous plant material with ter Process of pulping and bleaching fibrous plant material with ter

1991-09-13

1993-10-12

Alvo, Steve

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Treatment with particular chemical

162 78, D21C 320, D21C 326, D21C 916

Patent

active

052521834

ABSTRACT:
A process for producing bleached pulp from a fibrous plant material (e.g., wood), wherein the material is contacted with an alcohol solvent in a pulping zone to extract lignin from the fibrous plant material. The resulting pulp is then treated with a hydroperoxide or peroxide bleaching agent in a bleaching zone to form bleached pulp. Alcohol formed from the hydroperoxide or peroxide during the bleaching process may be recycled to the pulping zone. A preferred alcohol is tert-butyl alcohol, while a preferred hydroperoxide is tert-butyl hydroperoxide.

REFERENCES:
patent: 3585104 (1971-06-01), Kleinert
patent: 3645840 (1972-02-01), Lincoln et al.

Affiliated with

Also associated with

Rating

Process of pulping and bleaching fibrous plant material with ter 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 of pulping and bleaching fibrous plant material with ter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process of pulping and bleaching fibrous plant material with ter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1901764