Removal of sulfur dioxide from stack gases with phosphate slimes

Details Removal of sulfur dioxide from stack gases with phosphate slimes Removal of sulfur dioxide from stack gases with phosphate slimes

1973-10-01

1976-02-03

Vertiz, Oscar R.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Sulfur or sulfur containing component

C01B 1700

Patent

active

039365255

ABSTRACT:
It has been found that slimes from phosphate ore washer plants may be used to absorb sulfur dioxide from waste gases such as tail gases from sulfuric acid plants or waste gases generated from the combustion of fossil fuels. The sulfur dioxide is retained in the slimes as a bisulfite, subsequently oxidized to bisulfate, and eventually precipitated.

REFERENCES:
patent: 3398227 (1968-08-01), Every et al.
Industrial & Engineering Chemistry, Vol. 49, No. 3, Mar. 1957, pp. 392-395.

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