| This paper aims at the purification of industrial NOx waste gases, and discussed the actuality of existing technology in this field. The technical experimental courses that air oxidation of NO and reactive absorption of NOx waste gases with alkaline solution was brought forward in this paper, which was researched and analyzed through experiment. In the experiment, the simulation object of NOx waste gases was on the base of NOx waste gases expelled from some chemical plant. The NOx waste gases used in this experiment is the mixture of pure NO and industrial N2. The NO was oxidized by O2 of the air. After the ratio of oxidation of NOx is obtained in some extent, the NOx waste gases were absorbed with alkaline solutions in the tower of absorption. The absorptivity of NOx was mensurated. In the same time, the relation of oxidation time and ratio of oxidation of NOx was studied and analyzed on the basis of the data got between absorptivity and oxidation time in this experiment. The technology that oxidation of NO by air and absorption of NOx waste gases by alkaline solutions were brought forward according to the conclusion of this experiment, which seems to be a feasible method to deal with the industrial NOx waste gases.
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