Dual alkali scrubber liquor regeneration with production of gyps

Details Dual alkali scrubber liquor regeneration with production of gyps Dual alkali scrubber liquor regeneration with production of gyps

1984-07-30

1985-09-10

Heller, Gregory A.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Sulfur or sulfur containing component

423166, 423512A, 423519, C01B 1700, C01B 1745, C01B 1762

Patent

active

045405565

ABSTRACT:
A process for the recovery of gypsum as a product of a dual alkali system for regeneration of a sodium base alkaline scrubber liquor in which the liquor reacts with ground limestone in two serially connected sludge blankets containing from 15%-40% solids in a liquor matrix and overlain by a relatively clear supernatant pool. Upon completion of regeneration the liquor is discharged from the second blanket to the scrubber cycle while a proportionate amount of the slurry is further treated to reduce its pH and/or increase its density and/or to displace regenerated scrubber from the matrix after which the slurry is transferred to a separate tank and there oxidized to gypsum then it is filtered. The filtrate is returned to the liquor regeneration cycle and the gypsum recovered as product.

REFERENCES:
patent: 3961021 (1976-06-01), Morita et al.
patent: 3965242 (1976-06-01), Morita et al.
patent: 4462969 (1984-07-01), Wilhelm

Affiliated with

Also associated with

Rating

Dual alkali scrubber liquor regeneration with production of gyps does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dual alkali scrubber liquor regeneration with production of gyps, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dual alkali scrubber liquor regeneration with production of gyps will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1427855