Title:
【発明の名称】ε-カプロラクタムの製造方法
Document Type and Number:
Japanese Patent JPH0733369
Kind Code:
B2
Abstract:
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 DEG to 130 DEG C., (b) excess ammonia and hydrogen are separated off from the reaction mixture and (c) the reaction mixture thus obtained is heated to 150 DEG -250 DEG C. and epsilon -caprolactam is obtained.
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Inventors:
Hans-Martin, Hoot Maher
Franz, Melger
Franz, Josef, Breker
Rolf, Fischer
Uve, Fagto
Wolfgang, Halder
Klaus-Ulrich, Priestar
Heinz-Walter, Schneider
Wolfgang, Richter
Franz, Melger
Franz, Josef, Breker
Rolf, Fischer
Uve, Fagto
Wolfgang, Halder
Klaus-Ulrich, Priestar
Heinz-Walter, Schneider
Wolfgang, Richter
Application Number:
JP1015987A
Publication Date:
April 12, 1995
Filing Date:
January 21, 1987
Export Citation:
Assignee:
Bassf Axchen Gezel Shaft
International Classes:
B01J23/74; B01J23/78; B01J25/00; C07B61/00; C07D201/08; (IPC1-7): C07D201/08
Attorney, Agent or Firm:
Tajiro Taiji
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