Separation of ammonia from ammonia containing gases

Details Separation of ammonia from ammonia containing gases Separation of ammonia from ammonia containing gases

1979-07-18

1981-09-01

Vertiz, O. R.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

423352, C01C 300

Patent

active

042871620

ABSTRACT:
A process for the separation and recovery of substantially pure ammonia from its admixture with gases, particularly with gases containing carbon dioxide and gases obtained from the catalytic ammoxidation of hydrocarbons to the corresponding nitriles, by scrubbing the ammonia containing gases with an aqueous solution containing a mixture of salts having different cations and the anions of one or more inorganic acids capable of absorbing and liberating ammonia; e.g., mixtures of different alkali metal salts of phosphoric, telluric, boric, vanadic, chromic, selenic, germanic, silicic and similar acids. Preferably the anion component will be at least one of phosphoric, chromic, or boric acids.

REFERENCES:
patent: 1559980 (1925-11-01), Perrott et al.
patent: 2954272 (1960-09-01), Schaufelberger
patent: 3097065 (1963-07-01), Gollmar
patent: 4080423 (1978-03-01), Smith et al.
"Baker Analyzed Reagents", J. T. Baker Chemical Co. (1961), pp. 186, 187.
Chemical Abstracts 161570m.

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