Processes for producing nitric acid by utilization of cold oxyge

Details Processes for producing nitric acid by utilization of cold oxyge Processes for producing nitric acid by utilization of cold oxyge

1979-04-06

1980-11-25

Peters, G. O.

Chemistry of inorganic compounds

Nitrogen or compound thereof

Oxygen containing

C01B 2140

Patent

active

042358582

ABSTRACT:
In a process for producing nitric acid, a mixture of oxygen, nitrogen, nitric oxide, nitrogen dioxide, and dinitrogen tetroxide is introduced into an absorption column into which cold oxygen (below 0.degree. C.) is introduced. H.sub.2 O is introduced into the upper reaches of the column and reacts with the nitrogen dioxide and dinitrogen tetroxide to form nitric acid. The low oxygen temperature helps to shift the equilibrium between nitric oxide and oxygen to dinitrogen tetroxide and in favor of reacting the latter with water to form nitric acid.

REFERENCES:
patent: 2088057 (1937-07-01), Handforth
Webb, H. W., Absorption of Nitrous Gases, Longmans Green & Co., N. Y., 1923, pp. 14-25 & 94-98.

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