Process for purifying by the wet method fumes containing nitroge

Details Process for purifying by the wet method fumes containing nitroge Process for purifying by the wet method fumes containing nitroge

1990-02-13

1991-11-05

Heller, Gregory A.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

C01B 2100

Patent

active

050630342

ABSTRACT:
A process for purifying, by the wet method, fumes containing nitrogen oxides in which nitrogen monoxide is oxidized by an oxidizing agent into nitrogen dioxide which is itself reduced to nitrogen by using the reducing properties of sulfur dioxide present in the fumes and wherein the reduction is effected with the aid of an intermediate agent which prevents the transfer of nitrogen oxides in the form of nitrates to the effluent of the purification process.

REFERENCES:
patent: 4029739 (1977-06-01), Senjo et al.
patent: 4055624 (1977-10-01), Yoshida et al.

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