Delignification and bleaching of cellulose pulp

Details Delignification and bleaching of cellulose pulp Delignification and bleaching of cellulose pulp

1975-04-14

1979-01-02

Corbin, Arthur L.

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Gas, vapor or mist contact

8111, 162 90, D21C 910

Patent

active

041325893

ABSTRACT:
Cellulose pulp is mixed with a base consisting of magnesium oxide, magnesium hydroxide or magnesium peroxide, and treated with oxygen gas at an elevated pressure, at a temperature in the range of 90.degree.-160.degree. C, preferably 120.degree.-140.degree. C for 0.5-6 hours in the absence of alkali metal hydroxide.

REFERENCES:
patent: 321452 (1885-07-01), Pond
patent: 415608 (1889-11-01), Brin
patent: 3843473 (1974-10-01), Samuelson et al.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1516004