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(11)

EP 3 374 051 A1

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(43) Date of publication: 19.09.2018 Bulletin 2018/38 (21) Application number: 16864668.5 (22) Date of filing: 09.11.2016

(51) International Patent Classification (IPC):  B01D 33/46(2006.01) D21G 3/00(2006.01) B01D 33/21(2006.01) (86) International application number: PCT/SE2016/051099 (87) International publication number: WO 2017/082803 (18.05.2017 Gazette 2017/20)

(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 (30) Priority: 13.11.2015 SE 1551476 (71) Applicant: Valmet AB 851 94 Sundsvall (SE)	(72) Inventors: SÖDERMAN, Jerk SE-653 42 Karlstad (SE) BJÖRNVALL, Patrik SE-663 32 Skoghall (SE) RANSJÖ, Henrik SE-663 41 Hammarö (SE) (74) Representative: Becker Kurig Straus  Patentanwälte Bavariastrasse 7 80336 München 80336 München (DE)