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(11)

EP 3 649 085 A1

(12)

(43) Date of publication: 13.05.2020 Bulletin 2020/20 (21) Application number: 17752159.8 (22) Date of filing: 07.07.2017

(51) International Patent Classification (IPC):  C02F 1/44(2006.01) C02F 101/20(2006.01) B01D 61/00(2006.01) C02F 101/16(2006.01) C02F 103/10(2006.01) (86) International application number: PCT/FI2017/050526 (87) International publication number: WO 2019/008219 (10.01.2019 Gazette 2019/02)

(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 Designated Extension States: BA ME Designated Validation States: MA MD (71) Applicant: Suomen Malmijalostus OY 00100 Helsinki (FI)	(72) Inventors: KUNNILA, Jari 02330 Espoo (FI) KIURU, Jani 00100 Helsinki (FI) (74) Representative: Laine IP Oy  Porkkalankatu 24 00180 Helsinki 00180 Helsinki (FI)