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(11)

EP 4 284 530 A1

(12)

(43) Date of publication: 06.12.2023 Bulletin 2023/49 (21) Application number: 22705464.0 (22) Date of filing: 25.01.2022

(51) International Patent Classification (IPC):  B01D 1/00(2006.01) B01D 1/22(2006.01) B01D 3/02(2006.01) C02F 1/18(2023.01) C02F 103/08(2006.01) B01D 1/08(2006.01) B01D 1/24(2006.01) C02F 1/14(2023.01) F22B 1/00(2006.01) (52) Cooperative Patent Classification (CPC): C02F 1/14; B01D 1/0035; B01D 1/0082; B01D 3/02; C02F 2103/08; F22B 1/006; B01D 1/225; B01D 1/24; B01D 1/08; F22B 37/486; C02F 2209/42; C02F 2201/002; Y02A 20/124; Y02A 20/142; Y02A 20/212 (86) International application number: PCT/IB2022/050626 (87) International publication number: WO 2022/162522 (04.08.2022 Gazette 2022/31)

(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: 26.01.2021 IT 202100001505 (71) Applicant: Circle Biotech Srl 70124 Bari (BA) (IT)	(72) Inventor: CAPRIO, Francesco 70010 Valenzano (BA) (IT) (74) Representative: De Tullio, Michele Elio  Viale Liegi, 48/b 00198 Roma 00198 Roma (IT)