| 摘要 |
PURPOSE: Provided is a method for manufacturing N-alkyl-2-pyrrolidone by reacting alkylamines under mild reaction condition, thereby producing N-alkyl-2-pyrrolidone(NAP) stablely with high yield for a long time. CONSTITUTION: In a method for manufacturing N-alkyl-2-pyrrolidone by reacting a mixture of gammabutyrolactone(GBL), alkylamine and water in a catalyst reaction system, it is characterized in that the molar ratio of gammabutyrolactone:alkylamine:water is 1:(1-6):(1-18), its reaction temperature and pressure are 200-400 deg.C and 0-20kg/cm¬2G, respectively, it uses beta zeolite(MeNa beta) as a catalyst, and the space speed of reaction products is 0.1-20 hour¬-1.
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