It is used to prepare the method with the solution of the N-METHYLMORPHOLINOXIDE of the nitrosomorpholine of a low content

摘要

A kind of aqueous solution for preparing 50 to 60% mass parts NMMO solution and content and passing through oxidation mixture NMM and hydrogen peroxide for 100 to 3,000 hundred million/NOMOR is 55 to 70 degrees Celsius in temperature. Work molar ratio is H2O2/NMM=0.4 to 0.7, preferably 0.5 to 0.65, and peroxide solutions addition amine liquid 2 to 5 hours are reacting to 35 hours in reaction temperature with mixture. Unprecipitated NMM removes mixture from reaction and passes through rectification under vacuum.