(19)

(11)

EP 2 137 285 A2

(12)

(88) Date of publication A3: 26.03.2009 (43) Date of publication: 30.12.2009 Bulletin 2009/53 (21) Application number: 08751504.5 (22) Date of filing: 12.03.2008

(51) International Patent Classification (IPC):  C11B 1/10(2006.01) B08B 3/02(2006.01) B07B 1/55(2006.01) B01D 41/04(2006.01) (86) International application number: PCT/IT2008/000165 (87) International publication number: WO 2008/117325 (02.10.2008 Gazette 2008/40)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR (30) Priority: 28.03.2007 IT RM20070164 (71) Applicant: RAPANELLI FIORAVANTE S.p.A. 06034 Foligno (Perugia) (IT)	(72) Inventor: RAPANELLI, Paolo I-06034 Foligno (PG) (IT) (74) Representative: Fiammenghi-Domenighetti, Delfina  Fiammenghi-Fiammenghi Via Quattro Fontane 31 00184 Roma 00184 Roma (IT)