公开(公告)号：AT451354T

公开(公告)日：2009-12-15

申请号：AT07728960

申请日：2007-05-10

Applicant: BASF SE

Inventor： SCHMIDTKE HELMUT ,  VERSCH RALPH ,  SIMON SILKE ,  OTT KARL ,  DREWS RONALD ,  MOLLNER STEPHANIE

IPC: C07D207/26

Abstract: Process for the continuous preparation of N-ethyl-2-pyrrolidone (NEP) by reacting gamma-butyrolactone (GBL) with monoethylamine (MEA) in the liquid phase, wherein GBL and MEA are used in a molar ratio in the range from 1:1.08 to 1:2 an the reaction is carried out at a temperature in the range from 320 to 420° C. and an absolute pressure in the range from 70 to 120 bar.

公开(公告)号：DE502007002274D1

公开(公告)日：2010-01-21

申请号：DE502007002274

申请日：2007-05-10

Applicant: BASF SE

Inventor： SCHMIDTKE HELMUT ,  VERSCH RALPH ,  SIMON SILKE ,  OTT KARL ,  DREWS RONALD ,  MOLLNER STEPHANIE

IPC: C07D207/26

Abstract: Process for the continuous preparation of N-ethyl-2-pyrrolidone (NEP) by reacting gamma-butyrolactone (GBL) with monoethylamine (MEA) in the liquid phase, wherein GBL and MEA are used in a molar ratio in the range from 1:1.08 to 1:2 an the reaction is carried out at a temperature in the range from 320 to 420° C. and an absolute pressure in the range from 70 to 120 bar.