(19)

(11)

EP 2 091 625 A2

(12)

(88) Date of publication A3: 12.06.2008 (43) Date of publication: 26.08.2009 Bulletin 2009/35 (21) Application number: 07821700.7 (22) Date of filing: 23.10.2007

(51) International Patent Classification (IPC):  B01D 24/14(2006.01) B01D 24/46(2006.01) B01D 24/42(2006.01) (86) International application number: PCT/EP2007/061336 (87) International publication number: WO 2008/049833 (02.05.2008 Gazette 2008/18)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR (30) Priority: 24.10.2006 IT MI20062045 (71) Applicant: Danieli & C. Officine Meccaniche SpA 33042 Buttrio (Udine) (IT)	(72) Inventors: VENUTI, Giovanni 33100 Udine (IT) IURI, Paolo 33042 Buttrio (IT) (74) Representative: Cinquantini, Bruno et al Notarbartolo & Gervasi S.p.A. Corso di Porta Vittoria, 9 20122 Milano 20122 Milano (IT)