Manufacture of nitric acid
Abstract
Abstract In the manufacture of nitric acid having a relatively high concentration by catalytic oxidation of ammonia followed by oxidation of the nitrous vapors so obtained and absorption of the oxidized vapors by a solution of nitric acid of relatively low concentration, the nitrous vapors obtained directly from the catalytic combustion of ammonia are intimately contacted with nitric acid at low concentration, whereafter the resulting vapors, which contain less nitrous gas, are contacted with the resulting acid of higher concentration, and so on until nitric acid of the desired concentration is obtained, the successive vapors with a progressively decreasing nitrous gas content being left to pause in an oxidation space between each contacting operation.
Inventors
- 👤 Gerard Aguinet
- 👤 Jean Manoury
- 👤 Edouard Martin
Bibliographic Details
Claims Analysis
Total Claims: 1References Cited (Backward Citations)
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