Chemistry of inorganic compounds – Sulfur or compound thereof – Oxygen containing
Patent
1975-01-17
1976-09-14
Vertiz, Oscar R.
Chemistry of inorganic compounds
Sulfur or compound thereof
Oxygen containing
423236, 423243, 423245, C01B 1748
Patent
active
039807592
ABSTRACT:
SO.sub.2 is removed from a SO.sub.2 -containing gas mixture utilizing an aromatic amine as absorbent, followed by scrubbing the SO.sub.2 -depleted, aromatic amine-enriched effluent gas with sulfurous acid-and ammonium sulfate-containing aqueous solution to remove substantially all of the gaseous aromatic amine from the gas. The effluent gas is discharged ultimately to the atmosphere without any additional scrubbing of the gas, after its discharge from the sulfurous acid scrubbing zone, with sulfuric acid solution or any other acid solution or any acid.
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Henderson James M.
Wetherill William H.
ASARCO Incorporated
Drew R. J.
Langel Wayne A.
Schaffer E. J.
Vertiz Oscar R.
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