Davy Process Technology Limited

Riyaz Ezzuddin Khambati

John Richard Hensman

A process for the production of N-alkylpyrrolidone from &#x3b3;-butyrolactone and monoalkylamine in the liquid phase comprising the steps of: feeding monoalkylamine and &#x3b3;-butyrolactone, in the absence of water or in the presence of less than about 1 wt % of water, to a reaction zone to form a reaction mixture; heating the reaction mixture; withdrawing a product stream from the reaction zone and passing the stream to a distillation zone comprising at least one distillation column operated at sub-atmospheric pressure; adding water to the distillation zone; isolating at least one overhead stream from the distillation zone comprising monoalkylamine, water and optionally N-alkyl-pyrrolidone and condensing the overhead stream against cooling water.

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London, United Kingdom

Riyaz Ezzuddin Khambati