C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
C01B 21/14 (2006.01) B01D 3/16 (2006.01) B01J 19/30 (2006.01) B01J 19/32 (2006.01)
Patent
CA 2450107
The invention relates to a method for the production of a salt-free aqueous hydroxylamine solution by distilling an aqueous solution of an hydroxylammonium salt and a base in a plate column having at least two mechanical plates. The invention is characterized in that packings or structured packings are placed above at least one of the plates of the plate column along the cross section of said column.
La présente invention concerne un procédé pour produire une solution d'hydroxylamine aqueuse exempte de sel, par distillation d'une solution aqueuse d'un sel d'hydroxylammonium et d'une base, dans une colonne à plateaux comprenant au moins deux plateaux mécaniques. Cette invention est caractérisée en ce qu'un garnissage ou une garniture structurée se trouve au-dessus d'au moins un plateau de la colonne à plateaux, sur la section transversale de la colonne.
Gerber Bernd
Kerth Steffen
Kruger Heinz
Rumpf Bernd
Sachweh Bernd
Basf Aktiengesellschaft
Robic
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