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(11)

EP 3 898 550 A1

(12)

(43) Date of publication: 27.10.2021 Bulletin 2021/43 (21) Application number: 19820803.5 (22) Date of filing: 18.12.2019

(51) International Patent Classification (IPC):  C04B 24/12(2006.01) B01D 53/86(2006.01) C04B 7/38(2006.01) C04B 28/02(2006.01) B01J 35/00(2006.01) C04B 7/48(2006.01) (52) Cooperative Patent Classification (CPC): C04B 2290/20; B01D 2255/70; B01J 35/004; C04B 7/48; C04B 2111/00827; C04B 7/38; C04B 24/128; B01D 53/8668; C04B 28/02; Y02P 40/121; B01D 2255/2027; B01D 2255/802; B01D 53/8628; C04B 2111/2061   C-Sets: C04B 28/02, C04B 24/128; (86) International application number: PCT/EP2019/086060 (87) International publication number: WO 2020/127559 (25.06.2020 Gazette 2020/26)

(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: 19.12.2018 EP 18214192 (71) Applicant: HeidelbergCement AG 69120 Heidelberg (DE)	(72) Inventors: CACCIATORE, Andrea 24121 BERGAMO (BG) (IT) MARCHI, Maurizio Iler 20066 MELZO (MI) (IT) NEGRO, Piero 72020 TORCHIAROLO (BR) (IT) (74) Representative: Zellentin & Partner mbB Patentanwälte  Rubensstraße 30 67061 Ludwigshafen 67061 Ludwigshafen (DE)