Process for efficiently purifying industrial gas

Details Process for efficiently purifying industrial gas Process for efficiently purifying industrial gas

1973-11-27

1976-03-09

Vertiz, Oscar R.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

204102, 204180P, 423242, C01C 300

Patent

active

039432289

ABSTRACT:
Sulfur dioxide and ammonia remaining in waste-gas after partial purification thereof, for example by means of ammonia or ammonium sulfite solutions, are withdrawn from said gas by washing with a diluted aqueous solution of ammonium sulfate; the resulting ammonium sulfite containing solution is oxidized thereafter either by means of air or in an electrochemical cell.

REFERENCES:
patent: 1986889 (1935-01-01), Fulton
patent: 1992681 (1935-02-01), Conway et al.
patent: 2862789 (1958-12-01), Burgess
patent: 3510253 (1970-05-01), Fattinger et al.
patent: 3515513 (1970-06-01), Parsi
patent: 3645671 (1972-02-01), Griffin et al.
patent: 3676059 (1972-07-01), Welty
J.E. Jordan et al.-SO.sub.2 Removal from Stockgases-4/73.

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