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(11)

EP 4 370 237 A1

(12)

(43) Date of publication: 22.05.2024 Bulletin 2024/21 (21) Application number: 22748342.7 (22) Date of filing: 12.07.2022

(51) International Patent Classification (IPC):  B01D 61/14(2006.01) B01D 71/02(2006.01) A23C 9/142(2006.01) (52) Cooperative Patent Classification (CPC): B01D 61/145; B01D 61/147; B01D 71/0215; A23C 9/142; A23C 2210/25 (86) International application number: PCT/EP2022/069410 (87) International publication number: WO 2023/285434 (19.01.2023 Gazette 2023/03)

(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: 12.07.2021 DK PA202170376 (71) Applicant: LiqTech Holding A/S 9500 Hobro (DK)	(72) Inventor: KADRISPAHIC, Haris 9500 Hobro (DK) (74) Representative: Høiberg P/S  Adelgade 12 1304 Copenhagen K 1304 Copenhagen K (DK)