Distillation: processes – separatory – Distilling to separate or remove only water – From organic compound
Reexamination Certificate
2005-09-13
2005-09-13
Manoharan, Virginia (Department: 1764)
Distillation: processes, separatory
Distilling to separate or remove only water
From organic compound
C203S099000, C203SDIG001, C202S158000, C261S114500, C261SDIG007, C422S211000, C422S291000, C423S351000, C423S387000
Reexamination Certificate
active
06942762
ABSTRACT:
A process for preparing a salt-free aqueous hydroxylamine solution by distilling an aqueous solution of a hydroxylammonium salt and a base in a tray column having at least two mechanical trays, wherein random or structured packings are located above at least one tray of the tray column over the cross section of the column.
REFERENCES:
patent: 3721850 (1973-03-01), Giller
patent: 4532087 (1985-07-01), Boronyak et al.
patent: 5389343 (1995-02-01), Gentry
patent: 5472679 (1995-12-01), Levinthal et al.
patent: 5556516 (1996-09-01), Koyama et al.
patent: 5837107 (1998-11-01), Watzenberger et al.
patent: 6059934 (2000-05-01), Stober et al.
patent: 6153799 (2000-11-01), Watzenberger et al.
patent: 6235162 (2001-05-01), Sharifian et al.
patent: 6254735 (2001-07-01), Watzenberger
patent: 6286818 (2001-09-01), Buhlmann
patent: 6299734 (2001-10-01), Watzenberger et al.
patent: 6427985 (2002-08-01), Kaibel et al.
patent: 1 954 775 (1960-05-01), None
patent: 197 25851 (1998-12-01), None
patent: 188 387 (1986-07-01), None
patent: 97/22551 (1997-06-01), None
patent: 98/57886 (1998-12-01), None
patent: 99/97637 (1999-02-01), None
D. W. Green, 1997, 14-23-14-61, Perry's Chemical Engineer's Handbook, (XP002217527).
K. Sattler thermische Trennverfahren: Grundlagen, Auslegung, Apparate (3rdEd) 201, 242-249 (XP002217526).
Stoffinformationen, 1984, p. 3, 2, Eco-med-Verlag.
Gerber Bernd
Kerth Steffen
Krüger Heinz
Rumpf Bernd
Sachweh Bernd
BASF Akteingesellschaft
Manoharan Virginia
Novak Drucen Quigg
LandOfFree
Method for the production of a salt-free aqueous... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for the production of a salt-free aqueous..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for the production of a salt-free aqueous... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3383882