Method for improved distillation of ammonia from weak ammonia li

Details Method for improved distillation of ammonia from weak ammonia li Method for improved distillation of ammonia from weak ammonia li

1976-06-14

1978-08-22

Bascomb, Jr., Wilbur L.

Distillation: processes, separatory

Addition of material to distilland to inhibit or prevent...

For scale inhibiting or corrosion preventing

203 36, 203 96, 423357, B01D 338

Patent

active

041087356

ABSTRACT:
Fouling of an ammonia still, used for removal of ammonia from weak ammonia liquor derived from a coal coking operation, is alleviated by pre-precipitating insoluble calcium salts from the ammonia liquor by treatment of the liquor with lime prior to introduction into a single-leg still.

REFERENCES:
patent: 453005 (1891-05-01), Holden
patent: 1943345 (1934-01-01), Richardson
patent: 2156843 (1939-05-01), Garrels et al.
patent: 2781244 (1957-02-01), Hecklinger
patent: 2892682 (1959-06-01), Svanoe
patent: 3278423 (1966-10-01), Millar
patent: 3920419 (1975-11-01), Schroeder et al.

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