Method of removing nitrogen oxides from a gas as a salt of imido

Details Method of removing nitrogen oxides from a gas as a salt of imido Method of removing nitrogen oxides from a gas as a salt of imido

1976-07-07

1977-10-25

Vertiz, O. R.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

423388, C01B 2100

Patent

active

040556239

ABSTRACT:
A method of removing nitrogen oxides from a gas containing nitrogen oxides and converting same to a salt of imidodisulfonic acid, wherein the gas containing nitrogen oxides is brought into contact with an aqueous solution which contains at least one ferrous salt and at least one sulfurous acid alkali salt to absorb the nitrogen oxides in solution in the form of imidodisulfonic acid alkali salts.

REFERENCES:
patent: 3329478 (1967-07-01), Garlet et al.
patent: 3984522 (1976-10-01), Saito et al.
patent: 3991161 (1976-11-01), Saitoh et al.
patent: 3992508 (1976-11-01), Saitoh et al.
Chem. Abstr., 83:183203z.
Chem. Abstr., 85:129869z.
Chem. Abstr., 85:129870t.
Inorganic Syntheses, vol. V, 1957, pp. 117-124.

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