Process for producing pure concentrated ammonia

Details Process for producing pure concentrated ammonia Process for producing pure concentrated ammonia

1976-03-03

1977-09-20

Meros, Edward J.

Chemistry of inorganic compounds

Nitrogen or compound thereof

Ammonia or ammonium hydroxide

55 46, 55 68, 55 70, 210 18, 210 21, 423236, 423238, C01C 102, C01C 110, B01D 1900

Patent

active

040497828

ABSTRACT:
A process for the recovery of pure concentrated ammonia in which the gaseous products of coal gasification or degassing are condensed or are washed with water to produce a phenolic-containing liquid phase (gas water), this liquid is dephenolated by extraction with a solvent, the phenol is recovered from the solvent and the gas is driven from the liquid phase. The gas is washed with circulated phenol and residual solvent is eliminated therefrom after NH.sub.3 is removed by washing.

REFERENCES:
patent: 2954272 (1960-09-01), Schaufelberger

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