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| Study on Synthesis Technology of N-methylmorpholine Oxide |
| LI Shuaifei1**, DING Qichen2, XU Gensong1,ZHANG Jibo1*
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| 1. School of Petroleum and Chemical Engineering, Jilin Institute of Chemical Technology, Jilin City 132022, China；2. Shenzhen International Exchange Academy, Shenzhen 518000，China;3. Anhui Huatai Chemical Co., Ltd, Chizhou 247260, China |
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Abstract N-methylmorpholine oxide (NMMO) was synthesized by reacting N-methylmorpholine (NMM) with hydrogen peroxide (H?O?) in the presence of hexane under catalyst-free and atmospheric pressure conditions at 40~90°C, with simultaneous dehydration. The effects of H?O? dosage, hexane volume, and reaction temperature on the synthesis efficiency were systematically investigated. The optimized process parameters were determined as follows: molar ratio of n(NMM)∶n(H?O?) = 1.0:1.2, hexane volume of 60~70 mL, and reaction temperature of 75°C. Under these conditions, the conversion rate of NMM exceeded 98%, and the yield of NMMO reached over 93%.
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Published: 21 December 2025
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