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(11)

EP 2 435 161 A1

(12)

(43) Date of publication: 04.04.2012 Bulletin 2012/14 (21) Application number: 10722486.7 (22) Date of filing: 28.05.2010

(51) International Patent Classification (IPC):  B01D 53/10(2006.01) C04B 7/36(2006.01) (86) International application number: PCT/US2010/036506 (87) International publication number: WO 2010/138783 (02.12.2010 Gazette 2010/48)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR (30) Priority: 28.05.2009 US 473766 (71) Applicant: FLSmidth A/S 2500 Valby (DK)	(72) Inventors: JEPSEN, Ove Bethlehem, Pennsylvania 18017 (US) PAONE III, Peter T. Bethlehem, Pennsylvania 18017 (US) SALMENTO, John Bethlehem, Pennsylvania 18017 (US) (74) Representative: Johansson, Lars E.  Hynell Patenttjänst AB P.O. Box 138 683 23 Hagfors 683 23 Hagfors (SE)