D - Textiles – Paper – 01 – F
Patent
D - Textiles, Paper
01
F
D01F 2/00 (2006.01) C08B 1/00 (2006.01) D01F 13/02 (2006.01)
Patent
CA 2230050
The invention relates to a process for the preparation of a solution of N- methylmorpholin-N-oxide in water, which solution is used in the amine oxide process. The preparation process is characterised by the following steps: (a) an aqueous solution (A) is provided which contains N-methylmorpholine and is derived from the amine oxide process; (b) subsequently another aqueous solution (B) is added to said solution (A), and contains N-methylmorpholine, and a solution (C) is produced which (c) is treated with an oxidant to oxidise N-methylmorpholine to form N-methylmorpholin-N-oxide, a solution (D) of N- methylmorpholin-N-oxide being formed in water.
L'invention concerne un procédé de préparation d'une solution aqueuse de N-méthylmorpholin-N-oxyde dans l'eau, ladite solution s'utilisant dans le procédé à l'oxyde d'amine, qui se caractérise en ce que (a) il est prévu une solution aqueuse (A) contenant de la N-méthylmorpholine et résultant du procédé à l'oxyde d'amine, après quoi (b) cette solution (A) est ajoutée à une autre solution aqueuse (B) contenant de la N-méthylmorpholine, ce qui donne une solution (C), qui (c) est traitée avec un agent d'oxydation pour oxyder la N-méthylmorpholine afin de donner du N-méthylmorpholin-N-oxyde, une solution (D) de N-méthylmorpholin-N-oxyde étant formée dans l'eau.
Eichinger Dieter
Firgo Heinrich
Kalt Wolfram
Manner Johann
Lenzing Aktiengesellschaft
Sim & Mcburney
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