Method for the treatment of exhaust gases containing nitrogen ox

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

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B01D 5334

Patent

active

042128536

ABSTRACT:
Exhaust or waste gas containing nitrogen oxides is contacted with an aqueous solution containing urea and a catalytic amount of bromine or/and chlorine ion.

REFERENCES:
patent: 3528797 (1970-09-01), Funk et al.
patent: 3565575 (1971-02-01), Warshaw
patent: 3801696 (1974-04-01), Mark

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