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EP 3 849 699 A1

(12)

(43) Date of publication: 21.07.2021 Bulletin 2021/29 (21) Application number: 19766367.7 (22) Date of filing: 10.09.2019

(51) International Patent Classification (IPC):  B01J 20/32(2006.01) B01J 20/02(2006.01) B01D 53/047(2006.01) B01J 20/20(2006.01) B01D 53/02(2006.01) (86) International application number: PCT/IB2019/057609 (87) International publication number: WO 2020/053752 (19.03.2020 Gazette 2020/12)

(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: KH MA MD TN (30) Priority: 10.09.2018 WO PCT/IB2018/056878 (71) Applicant: ArcelorMittal 1160 Luxembourg (LU)

(72) Inventors: PEVIDA GARCIA, Covadonga 33011 Oviedo Asturias (ES) RUBIERA GONZALEZ, Fernando 33011 Oviedo Asturias (ES) ALVAREZ GUTIERREZ, Noelia 39593 Caviedes-valdaliga Cantabria (ES) REYES RODRIGUEZ, Jon 33400 Aviles Asturias (ES) (74) Representative: Plaisant, Sophie Marie  ArcelorMittal France Research & Development Intellectual Property 6, rue André Campra 93200 Saint-Denis 93200 Saint-Denis (FR)