(19)
(11)
EP 0 541 648 A1
(12)
(43)
Date of publication:
19.05.1993
Bulletin 1993/20
(21)
Application number:
91914070.0
(22)
Date of filing:
26.07.1991
(51)
International Patent Classification (IPC):
B01J
23/
656
( . )
C07B
61/
00
( . )
B01J
23/
89
( . )
C07D
307/
08
( . )
(86)
International application number:
PCT/US1991/005165
(87)
International publication number:
WO 1992/002298
(
20.02.1992
Gazette 1992/05)
(84)
Designated Contracting States:
BE DE ES FR GB GR IT LU NL
(30)
Priority:
27.07.1990
US 19900558991
24.07.1991
US 19910734844
(71)
Applicant:
E.I. DU PONT DE NEMOURS AND COMPANY
Wilmington Delaware 19898 (US)
(72)
Inventors:
ERNST, Richard, Edward
Kennett Square, PA 19348 (US)
MICHEL, John, Byrne
West Chester, PA 19383 (US)
(74)
Representative:
Woodcraft, David Charles, et al
High Holborn House 52/54 High Holborn
London WC1V 6SE
London WC1V 6SE (GB)
(54)
HYDROGENATION CATALYST AND METHOD FOR PREPARING TETRAHYDROFURAN