Process of removing nitrogen oxides from gaseous mixtures

Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Nitrogen or nitrogenous component

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423393, C01B 2140

Patent

active

043417477

ABSTRACT:
Nitrogen oxides are removed from gaseous mixtures by treatment with an aqueous solution of nitric acid having a concentration by weight from about 35% to about 58% and containing by weight at least 0.001% but less than 25% of hydrogen peroxide whereby the nitrogen oxides are converted to nitric acid.

REFERENCES:
patent: 3991167 (1976-11-01), Depommier

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