(19)
(11) EP 0 998 440 A1

(12)

(43) Date of publication:
10.05.2000 Bulletin 2000/19

(21) Application number: 98934499.9

(22) Date of filing: 14.07.1998
(51) International Patent Classification (IPC)7: C07C 45/28, C07C 47/22, B01J 8/38, B01J 23/31, B01J 23/92, C07C 201/14
(86) International application number:
PCT/US9814/511
(87) International publication number:
WO 9903/809 (28.01.1999 Gazette 1999/04)
(84) Designated Contracting States:
BE DE ES FR GB IT NL

(30) Priority: 15.07.1997 US 55693 P

(71) Applicants:
  • E.I. DU PONT DE NEMOURS AND COMPANY
    WilmingtonDelaware 19898 (US)
  • ELF ATOCHEM S.A.
    92800 Puteaux,Hauts-de-Seine (FR)

(72) Inventors:
  • CONTRACTOR, Rashmikant, Maganlal
    Wilmington, DE 19810 (US)
  • ANDERSON, Mark, William
    Charlottesville, VA 22901 (US)
  • CAMPOS, Daniel
    Wilmington, DE 19807 (US)
  • HECQUET, Gérard
    F-62400 Béthune (FR)
  • KOTWICA, Roland
    F-60700 Pontpoint (FR)
  • PHAM, Charlotte
    F-67700 Saverne (FR)
  • SIMON, Michel
    F-57500 Saint Avold (FR)

(74) Representative: Jones, Alan John et al
CARPMAELS & RANSFORD43 Bloomsbury Square
London, WC1A 2RA
London, WC1A 2RA (GB)

   


(54) IMPROVED VAPOR PHASE OXIDATION OF PROPYLENE TO ACROLEIN