A process for the production of N-methyl-pyrrolidone obtained by reaction of gammabutyrolactone and mononmethylamine; wherein the synthesis is carried out by a continuous non catalytic process in liquid phase, via three distinct reaction stages connected in series....
0.01 to 5% by weight and 0.02 to 6% by weight, based on the total weight of the non-aqueous solvent, and (4) the amounts of the 纬-butyrolactone and the ethylene carbonate are, respectively, 50% by volume or more and 10% by volume or more, based on the total volume of the non-...