(19)

(11)

EP 4 267 520 A1

(12)

(43) Date of publication: 01.11.2023 Bulletin 2023/44 (21) Application number: 20848795.9 (22) Date of filing: 24.12.2020

(51) International Patent Classification (IPC):  C02F 1/467(2023.01) C02F 1/42(2023.01) B01J 49/50(2017.01) C02F 1/44(2023.01) C02F 101/34(2006.01) C02F 1/20(2023.01) G21F 9/12(2006.01) C02F 1/461(2023.01) B01D 61/04(2006.01) C02F 1/469(2023.01) (52) Cooperative Patent Classification (CPC): C02F 2305/023; C02F 2303/18; C02F 2303/16; C02F 2301/046; C02F 2301/043; C02F 2209/20; C02F 2209/003; C02F 2201/4614; C02F 2101/006; C02F 2101/34; C02F 1/4672; C02F 1/4693; C02F 1/46109; C02F 2001/46147; C02F 1/441; C02F 1/42; C02F 1/20; G21F 9/12; C02F 9/00; G21F 9/007; B01J 39/05; B01J 47/04; B01J 49/09; B01J 49/50; B01D 61/58; B01D 61/025; B01D 61/445; B01D 2319/022; B01D 2319/04   C-Sets: B01J 39/05, B01J 41/05; (86) International application number: PCT/EP2020/087884 (87) International publication number: WO 2022/135731 (30.06.2022 Gazette 2022/26)

(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 (71) Applicant: Framatome GmbH 91052 Erlangen (DE)	(72) Inventors: ZEH, Peter 90542 ECKENTAL (DE) SEN, Ayhan 90431 NÜRNBERG (DE) WEGENER, Sven 91058 ERLANGEN (DE) (74) Representative: Lavoix  Bayerstraße 83 80335 München 80335 München (DE)