(19)

(11)

EP 2 491 165 A1

(12)

(43) Date of publication: 29.08.2012 Bulletin 2012/35 (21) Application number: 10824512.7 (22) Date of filing: 15.10.2010

(51) International Patent Classification (IPC):  C25C 7/02(2006.01) (86) International application number: PCT/FI2010/050802 (87) International publication number: WO 2011/048260 (28.04.2011 Gazette 2011/17)

(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 RS SE SI SK SM TR (30) Priority: 22.10.2009 FI 20096091 (71) Applicant: Outotec OYJ 02200 Espoo (FI)	(72) Inventor: PALMU, Lauri FI-00330 Helsinki (FI) (74) Representative: Papula Oy  Mechelininkatu 1 a 00180 Helsinki 00180 Helsinki (FI)