Method for the recovery of ammonia from liquor from the filters

Details Method for the recovery of ammonia from liquor from the filters Method for the recovery of ammonia from liquor from the filters

1975-11-05

1977-12-06

Thomas, Earl C.

Chemistry of inorganic compounds

Nitrogen or compound thereof

Ammonia or ammonium hydroxide

423190, 423357, 423421, C01C 102

Patent

active

040617181

ABSTRACT:
A method for the recovery of ammonia from liquor from the filters of ammonia-soda plants, which contains free ammonia and ammonium chloride. In this method the liquor is heated to release the free ammonia, and the remaining liquor is then treated successively in a prelimer with lime in an amount insufficient to decompose the whole part of the ammonium chloride and in a still with steam and an alkali metal hydroxide in an amount sufficient to decompose the remaining part of ammonium chloride.

REFERENCES:
patent: 1118332 (1914-11-01), Clemm
patent: 1838587 (1931-12-01), Sperr
patent: 3329479 (1967-07-01), Hustinx

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