(19)

(11)

EP 2 723 477 A1

(12)

(43) Date of publication: 30.04.2014 Bulletin 2014/18 (21) Application number: 12801870.2 (22) Date of filing: 19.06.2012

(51) International Patent Classification (IPC):  B01D 61/00(2006.01) B01D 29/90(2006.01) B01D 63/00(2006.01) C02F 1/44(2006.01) (86) International application number: PCT/FI2012/050638 (87) International publication number: WO 2012/175804 (27.12.2012 Gazette 2012/52)

(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: 21.06.2011 FI 20110205 09.08.2011 FI 20110261 (71) Applicant: EMP-Innovations OY 04230 Kerava (FI)	(72) Inventor: AULANKO, Esko FI-04230 Kerava (FI) (74) Representative: Salomäki, Juha Kari Ensio  Salomaki Oy Kankurinkatu 4-6 05800 Hyvinkää 05800 Hyvinkää (FI)