(19)

(11)

EP 0 862 490 A1

(12)

(43) Date of publication: 09.09.1998 Bulletin 1998/37 (21) Application number: 96931050.0 (22) Date of filing: 09.09.1996

(51) International Patent Classification (IPC):  B01D 46/ 34( . ) B01D 53/ 08( . ) (86) International application number: PCT/EP1996/003940 (87) International publication number: WO 1997/012659 (10.04.1997 Gazette 1997/16)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI NL PT SE (30) Priority: 02.10.1995 IT 1995MI02009 (71) Applicant: MAGRINI, Giorgio I-20123 Milano (IT)	(72) Inventor: MAGRINI, Giorgio I-20123 Milano (IT) (74) Representative: Perani, Aurelio, et al  c/o JACOBACCI & PERANI S.p.A Via Visconti di Modrone, 7 20122 Milano 20122 Milano (IT)