METHOD OF PRODUCTION OF NITRIC ACID Russian patent published in 2002 - IPC

Abstract RU 2184078 C2

FIELD: inorganic chemistry, chemical technology. SUBSTANCE: method of production of nitric acid involves oxidation of ammonia with air oxygen, cooling nitrous gases to form nitric acid condensate, its feeding to absorption stage to yield nonconcentrated nitric acid followed by its whitening in blow-through column. Condensate of nitric acid is subjected for whitening and the whitened condensate after cooling and blow-through gases are fed to absorption stage of cooled nitrous gases. EFFECT: increased concentration of manufacture nitric acid, decreased content of nitrogen oxides in exhausts. 1 dwg

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RU 2 184 078 C2

Authors

Khakonov Askarbij Nurbievich

Dates

2002-06-27—Published

2000-08-10—Filed