Original title: Způsob přípravy N - methylmorfolinoxidu
Title in English: A method for preparation of N-methylmorpholine-N-oxide…
First author: Prof. Josef Pašek, MSc, DSc
Short abstract:
A method for production of N-methylmorpholine-N-oxide with low content of nitrosomorpholine through oxidation of N-methylmorpholine by hydrogen peroxide under temperature from 55 to 75 Cand the molar ratio of H2O2: amine falling within 0.5 to 0.9 and reaction time from 5 to 8 hours.The method consists in the extraction from solutions 50 to 70 wt% N-methylmorpholine-N-oxide by a solvent of the group of aromatic hydrocarbons, C4 to C8 ketones, or organic acid esters having total carbon atom number from 4 to 8 at temperature from 10°C to 60°C. The N-methyl morpho-line-N-oxide solutions extracted are obtained by distilling off the unreacted N-methylmorpholine.