Production of .epsilon.-caprolactam

Details Production of .epsilon.-caprolactam Production of .epsilon.-caprolactam

C - Chemistry, Metallurgy

07

D

260/241.7

C07D 223/10 (2006.01) C07D 201/08 (2006.01)

Patent

CA 1274826

Abstract of the Disclosure: Caprolactam is prepared by a process in which a) a 5-formylvalerate is reacted with excess ammonia and hydrogen in the presence of an alkanol as a solvent and in the presence of a hydrogenation catalyst under superatmospheric pressure in the liquid phase at from 40 to 130°C, b) excess ammonia and hydrogen are separated off from the reaction mixture and c) the reaction mixture thus obtained is heated to 150- 250°C and .epsilon.-caprolactam is obtained.

527726

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