(19)

(11)

EP 0 732 967 A1

(12)

(43) Date of publication: 25.09.1996 Bulletin 1996/39 (21) Application number: 95902879.0 (22) Date of filing: 07.12.1994

(51) International Patent Classification (IPC):  B01D 17/ 06( . ) B01D 17/ 04( . ) C10G 33/ 02( . ) B01D 11/ 04( . ) B03C 1/ 23( . ) (86) International application number: PCT/GB1994/002704 (87) International publication number: WO 1995/015802 (15.06.1995 Gazette 1995/25)

(84) Designated Contracting States: BE CH DE DK ES FR GB GR IT LI NL SE (30) Priority: 10.12.1993 GB 19930025321 (71) Applicant: British Nuclear Fuels PLC Risley Warrington Cheshire, WA3 6AS (GB)	(72) Inventor: BAILEY, Geoffrey Horrocks Fulwood, Preston PR4 0AN (GB)