(19)
(11) EP 0 871 588 A1

(12)

(43) Date of publication:
21.10.1998 Bulletin 1998/43

(21) Application number: 97900860.0

(22) Date of filing: 03.01.1997
(51) International Patent Classification (IPC): 
B01J 21/ 04( . )
C01F 7/ 00( . )
(86) International application number:
PCT/US1997/000028
(87) International publication number:
WO 1997/025275 (17.07.1997 Gazette 1997/31)
(84) Designated Contracting States:
DE FR GB IT

(30) Priority: 05.01.1996 US 19960009729P
03.01.1997 US 19970778668

(71) Applicant: ASEC Manufacturing Company
Catoosa, Oklahoma 74015 (US)

(72) Inventors:
  • KHARAS, Karl, C., C.
    Tulsa, OK 74136 (US)
  • MITSCHE, Roy, T.
    Peoria, AZ 85345 (US)
  • ROBOTA, Heinz, J.
    Tulsa, OK 74137 (US)
  • GATTER, Michael, G.
    Elk Grove Village, IL 60007 (US)

(74) Representative: Lucas, Brian Ronald, et al 
Lucas & Co. 135 Westhall Road
Warlingham Surrey CR6 9HJ
Warlingham Surrey CR6 9HJ (GB)

   


(54) STABILIZED DELTA-ALUMINA COMPOSITIONS, AND CATALYST SUPPORTS AND SYSTEMS MADE THEREFROM