Basf Aktiengesellschaft

Basf Se Corporation

Rolf Lebkücher

Norbert Niessner

Hermann Gausepohl

Rolf-Hartmuth Fischer

Manfred Julius

Andreas Henne

Peter Stops

Karl-Heinz Ross

Sabine Weiguny

Erhard Henkes

Martin Rudloff

Helmut Schmidtke

Jochen Henkelmann

Thomas Rühl

Paul Nägele

Process for the continuous preparation of N-methyl-2-pyrrolidone (NMP) by reacting gamma-butyrolactone (GBL) with monomethylamine (MMA) in the liquid phase, wherein GBL and MMA are used in a molar ratio of from 1:1.08 to 1:2 and the reaction is carried out at from 320 to 380&#xb0; C. and an absolute pressure of from 70 to 120 bar.

Method for the continuous production of N-methyl-2-pyrrolidone (NMP)

A process for continuously preparing 2-pyrrolidone by reacting gamma-butyrolactone with ammonia in the liquid phase in the presence of water, wherein the reaction is carried out at a temperature of from 275 to 300&#xb0; C. and an absolute pressure of from 140 to 180 bar.

Method for the production of 2-pyrrolidone

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Mannheim, Germany

Rolf Lebkücher