METHOD FOR DECREASING NITRIC-OXIDES CONTENT IN TAIL GASES OF WEAK NITRIC ACID PRODUCTION PROCESS

摘要

Nitrous gases absorb aqueous nitric acid pretreated ozone-oxygen mixture comprising 40-60 mg of ozone per 1 m 3 tail gas withdrawn from the absorption step, which is then reduced with ammonia. Table 1. 1 yl.