(19)

(11)

EP 4 532 782 A1

(12)

(43) Date of publication: 09.04.2025 Bulletin 2025/15 (21) Application number: 23728319.7 (22) Date of filing: 22.05.2023

(51) International Patent Classification (IPC):  C22B 3/22(2006.01) F24T 10/20(2018.01) C02F 9/00(2023.01) C02F 1/20(2023.01) C02F 1/66(2023.01) C22B 26/12(2006.01) F24T 50/00(2018.01) C02F 101/20(2006.01) C02F 1/26(2023.01) (52) Cooperative Patent Classification (CPC): C22B 26/12; F24T 10/20; C02F 9/00; C02F 2101/20; C02F 1/66; C02F 1/20; C02F 1/26; C02F 2301/08; F24T 50/00; C22B 3/22 (86) International application number: PCT/EP2023/063645 (87) International publication number: WO 2023/227526 (30.11.2023 Gazette 2023/48)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (30) Priority: 27.05.2022 EP 22175735 (71) Applicant: Vulcan Energie Ressourcen GmbH 76227 Karlsruhe (DE)	(72) Inventors: AICHER, Thomas 79102 Freiburg (DE) GRANT, Alexander John San Francisco, CA 94607 (US) (74) Representative: Durm Patentanwälte PartG mbB  Patentanwälte Moltkestrasse 45 76133 Karlsruhe 76133 Karlsruhe (DE)