Separation of ammonia from ammonia containing gases

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

C - Chemistry, Metallurgy

01

C

23/351

C01C 1/12 (2006.01) B01D 53/14 (2006.01)

Patent

CA 1154934

S-77-037 Scheibel INVENTOR: EDWARD GEORGE SCHEIBEL 500 Old Middletown Road Media, Delaware County Commonwealth of Pennsylvania, 19063 TITLE OF THE INVENTION: SEPARATION OF AMMONIA FROM AMMONIA CONTAINING GASES ABSTRACT OF THE DISCLOSURE 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.

355894

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