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(11)

EP 4 770 787 A1

(12)

(43) Date of publication: 08.07.2026 Bulletin 2026/28 (21) Application number: 24751245.2 (22) Date of filing: 29.07.2024

(51) International Patent Classification (IPC):  B01D 61/02(2006.01) B01D 69/02(2006.01) B01D 71/80(2006.01) B01D 67/00(2006.01) B01D 71/68(2006.01) (52) Cooperative Patent Classification (CPC): B01D 61/027; B01D 67/0011; B01D 69/02; B01D 71/68; B01D 71/80; B01D 71/521; B01D 2325/36 (86) International application number: PCT/EP2024/071470 (87) International publication number: WO 2025/045484 (06.03.2025 Gazette 2025/10)

(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: GE KH MA MD TN (30) Priority: 31.08.2023 EP 23194646 (71) Applicant: BASF SE 67056 Ludwigshafen am Rhein (DE)	(72) Inventors: WEBER, Martin 67056 Ludwigshafen am Rhein (DE) GRONWALD, Oliver 67056 Ludwigshafen am Rhein (DE) GUBBELS, Erik 67056 Ludwigshafen am Rhein (DE) STRAUCH, Joachim 67056 Ludwigshafen am Rhein (DE) (74) Representative: BASF IP Association  BASF SE GBI - Z0078 67056 Ludwigshafen 67056 Ludwigshafen (DE)