Distillation: apparatus – Apparatus – Systems
Patent
1979-12-03
1981-07-21
Bascomb, Jr., Wilbur L.
Distillation: apparatus
Apparatus
Systems
202176, 202198, 202234, B01D 320, B01D 322
Patent
active
042797039
ABSTRACT:
The fouling of ammonia stills which results from the clogging, particularly of the lower plates of the stills, with sludge and precipitates is eliminated by use of combined apparatus in which a calcium compound precipitation step followed by a clarification step prior to initiation of actual distillation can be effected.
REFERENCES:
patent: 1781987 (1930-11-01), Means
patent: 2029467 (1936-02-01), Day
patent: 2315423 (1943-03-01), Hildebrandt
patent: 2767966 (1956-10-01), Chave
patent: 3143482 (1964-08-01), McLeod et al.
patent: 3278423 (1966-10-01), Millar
Burcaw Kenneth R.
Horst Russel J.
Kwasnoski Daniel
Sterner Charles J.
Bascomb, Jr. Wilbur L.
Bethlehem Steel Corporation
O'Keefe Joseph J.
Wilkinson Charles A.
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