Method for separating ammonia from solutions containing...

Details Method for separating ammonia from solutions containing... Method for separating ammonia from solutions containing...

2005-05-24

2005-05-24

Manoharan, Virginia (Department: 1764)

Distillation: processes, separatory

With disparate physical separation

Utilizing liquid sorption of component from gas or vapor

C203S075000, C203S077000, C203S078000, C203S080000, C203S087000, C203S088000, C203S094000, C203S098000, C423S352000, C423S358000, C540S485000, C540S540000

Reexamination Certificate

active

06896772

ABSTRACT:
A process for distillative removal of ammonia from solutions (I) which include a lactam and ammonia comprises effecting said removal in a distillation apparatus (a) at an absolute pressure of less than 10 bar.

REFERENCES:
patent: 5646277 (1997-07-01), Fuchs et al.
patent: 5717090 (1998-02-01), Bassler et al.
patent: 5739324 (1998-04-01), Fuchs et al.
patent: 5874575 (1999-02-01), Fuchs et al.
patent: 6147208 (2000-11-01), Achhammer et al.
patent: 6482297 (2002-11-01), Bocquenet et al.

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