(19)

(11)

EP 1 230 021 A1

(12)

(43) Date of publication: 14.08.2002 Bulletin 2002/33 (21) Application number: 99964143.4 (22) Date of filing: 26.10.1999

(51) International Patent Classification (IPC)7: B01J 23/847, C07C 253/24 (86) International application number: PCT/US9928/984 (87) International publication number: WO 0130/493 (03.05.2001 Gazette 2001/18)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: RO (71) Applicant: The Standard Oil Company Chicago, IL 60601-0703 (US)	(72) Inventors: BARTEK, Joseph, P. Wheaton, IL 60187 (US) BRAZDIL, James, F. Glen Ellyn, IL 60137-6819 (US) (74) Representative: Barlow, Michael Thomas et al BP INTERNATIONAL LIMITEDPatents & Agreements DivisionChertsey Road Sunbury-on-ThamesMiddlesex TW16 7LN Sunbury-on-ThamesMiddlesex TW16 7LN (GB)