Sulphur dioxide gas scrubbing process

Details Sulphur dioxide gas scrubbing process Sulphur dioxide gas scrubbing process

1979-08-13

1981-03-10

Vertiz, O. R.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Sulfur or sulfur containing component

423539, 423551, C01B 1700

Patent

active

042554020

ABSTRACT:
Sulfur dioxide is removed from a gas stream by contacting the gas with an aqueous solution containing sulfite anion, magnesium cation, and one or more other cations whose sulfite salts are more soluble than magnesium sulfite. The contacting solution is regenerated with magnesium oxide or hydroxide and then recycled.

REFERENCES:
patent: 3617212 (1971-11-01), Shah
patent: 3650692 (1972-03-01), Villiers-Fisher
patent: 3687624 (1972-08-01), Terrana et al.
patent: 3971844 (1976-07-01), Schneider
patent: 4178348 (1979-12-01), Asanagi et al.

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