(19)

(11)

EP 2 117 717 A1

(12)

(43) Date of publication: 18.11.2009 Bulletin 2009/47 (21) Application number: 08709299.5 (22) Date of filing: 31.01.2008

(51) International Patent Classification (IPC):  B03D 1/002(2006.01) (86) International application number: PCT/FI2008/050030 (87) International publication number: WO 2008/092995 (07.08.2008 Gazette 2008/32)

(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 Designated Extension States: AL BA MK RS (30) Priority: 02.02.2007 FI 20070089 (71) Applicant: Outotec OYJ 02200 Espoo (FI)	(72) Inventor: PALOSAARI, Veikko 90230 Oulu (FI) (74) Representative: Zipse Habersack Kritzenberger  Patentanwälte Wotanstraße 64 80639 München 80639 München (DE)