Flue gas scrubbing and conversion of calcium sulfite to calcium

Details Flue gas scrubbing and conversion of calcium sulfite to calcium Flue gas scrubbing and conversion of calcium sulfite to calcium

1975-08-25

1977-05-17

Vertiz, O. R.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Sulfur or sulfur containing component

423166, C01B 1700, C01F 1146, C01F 100

Patent

active

040242200

ABSTRACT:
In the scrubbing of sulfur compound containing stack gases, there is an advantage to converting calcium sulfite to calcium sulfate downstream from the scrubber in order to provide for smaller sludge handling equipment and to form a more usable sludge. Thus, in the present operation, there is provided an ozonation of the withdrawn scrubber bottoms slurry to effect the conversion of calcium sulfite in such slurry to calcium sulfate.

REFERENCES:
patent: 2926999 (1960-03-01), Tarbutton et al.
patent: 3556722 (1971-01-01), Owaki
patent: 3840638 (1974-10-01), Morita et al.

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