Method of reducing the emission of NO.sub.x gas from a liquid co

Details Method of reducing the emission of NO.sub.x gas from a liquid co Method of reducing the emission of NO.sub.x gas from a liquid co

1987-09-10

1990-07-03

Doll, John

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156642, 156664, 156666, 423390, C23F 100, C23F 306

Patent

active

049388380

ABSTRACT:
A method of reducing, by the addition of hydrogen peroxide, the emission of NO.sub.x gas in the treatment of a nitric acid-containing liquid is disclosed. In the method the redox potential of the liquid is measured and the amount of added hydrogen peroxide is adjusted in relation to the redox potential.

REFERENCES:
patent: 2981617 (1961-04-01), Hager et al.
patent: 3019081 (1962-01-01), Doss et al.
patent: 3063945 (1962-11-01), Blackwell
patent: 3113836 (1963-12-01), Blackwell
"Control of NO.sub.x in Steel Pickling" (Environmental Progress).

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