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(11)

EP 3 464 659 A1

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(43) Date of publication: 10.04.2019 Bulletin 2019/15 (21) Application number: 17725993.4 (22) Date of filing: 31.05.2017

(51) International Patent Classification (IPC):  C22C 21/02(2006.01) C22F 1/05(2006.01) C22C 21/08(2006.01) (86) International application number: PCT/EP2017/063109 (87) International publication number: WO 2017/207603 (07.12.2017 Gazette 2017/49)

(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: 01.06.2016 EP 16172448 (71) Applicant: Aleris Aluminum Duffel BVBA 2570 Duffel (BE)	(72) Inventor: EBZEEVA, Svetlana Emirovna 2570 Duffel (BE) (74) Representative: Müller Schupfner & Partner Patent- und Rechtsanwaltspartnerschaft mbB  Bavariaring 11 80336 München 80336 München (DE)