Distillation: processes – separatory – Addition of material to distilland to inhibit or prevent...
Patent
1998-11-05
2000-06-13
Manoharan, Virginia
Distillation: processes, separatory
Addition of material to distilland to inhibit or prevent...
203 38, 203 59, 203DIG3, 558463, 558466, B01D 334, C07C25508
Patent
active
060745320
ABSTRACT:
A method for improving purification efficiency when distilling off aldehyde contaminants during chemical manufacturing processes by adding a substituted aromatic amine having electron donating group substituents prior to the distillation column. The method is particularly useful for removal of aldehydes such as acrolein, generated as a by-product of acrylonitrile manufacture. Preferred aromatic amines are 2-amino aniline, 3,4-dimethyl aniline and 4-ethyl aniline.
REFERENCES:
patent: 2987451 (1961-06-01), Sennewald et al.
patent: 3257446 (1966-06-01), Grice et al.
patent: 3462477 (1969-08-01), Caporali et al.
patent: 3468624 (1969-09-01), Miller et al.
patent: 3725208 (1973-04-01), Maezawa et al.
patent: 3876508 (1975-04-01), Bonnema et al.
patent: 4059492 (1977-11-01), Hausweiler et al.
patent: 5606094 (1997-02-01), Roof et al.
patent: 5714055 (1998-02-01), Lewis et al.
patent: 5759358 (1998-06-01), Bauer, Jr. et al.
patent: 5961790 (1999-10-01), Herbst et al.
Enderson Margaret D.
Lewis Vincent E.
Patel Natu R.
Breininger Thomas M.
Manoharan Virginia
Martin Michael B.
Nalco/Exxon Energy Chemicals L.P.
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