Method for the production of 2-pyrrolidone

Details Method for the production of 2-pyrrolidone Method for the production of 2-pyrrolidone

2007-01-16

2007-01-16

McKane, Joseph K. (Department: 1626)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

active

10487452

ABSTRACT:
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° C. and an absolute pressure of from 140 to 180 bar.

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Chemische Berichte 69, 2727-31, 1936.
Chem. Abst.93 (19): 186154b.
Der.Abst.No. 95-176475/23.

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