Adjusting the sulphur balance of a sulphate cellulose plant by h

Details Adjusting the sulphur balance of a sulphate cellulose plant by h Adjusting the sulphur balance of a sulphate cellulose plant by h

1995-03-06

1997-09-02

Czaja, Donald E.

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Including recovery of organic by-product

162 29, 159 21, 159 473, 203 88, D21C 1110

Patent

active

056627742

ABSTRACT:
The invention relates to a method of adjusting the sulphur balance of a sulphate cellulose plant, in which method black liquor is concentrated and heat treated by keeping it at a temperature higher than the cooking temperature for a certain time period to separate the sulphur compounds contained in the black liquor as gaseous sulphur compounds therefrom in the last evaporation stage of a series of evaporation stages.

REFERENCES:
patent: Re24293 (1957-03-01), Hagglund et al.
patent: 4929307 (1990-05-01), Kiisica et al.
patent: 5112441 (1992-05-01), Ruohola et al.
patent: 5201172 (1993-04-01), Hakulin et al.
patent: 5230773 (1993-07-01), Petanen
patent: 5234546 (1993-08-01), Chamblee
patent: 5277759 (1994-01-01), Sanholm
Ryham, "High Solids Evaporation Through Thermal Depolymerization of Black Liquor", Chem. Recovery, pp. 157-160 (1989).

Affiliated with

Also associated with

Rating

Adjusting the sulphur balance of a sulphate cellulose plant by h does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Adjusting the sulphur balance of a sulphate cellulose plant by h, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adjusting the sulphur balance of a sulphate cellulose plant by h will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-305126