PROCESS FOR PURIFYING GASES POLLUTED BY NITROGEN OXIDES AND SULFUR OXIDES BY TREATING THESE WITH AN AQUEOUS SOLUTION OF AN FE-EDTA COMPLEX AND A SULPHITE.

摘要

A method for purifying industrial exhaust gases containing nitrogen oxides and sulfur oxides, by treating the gases with a circulating absorbing solution containing Fe-EDTA complex salt and ammonium sulfite is provided.