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EP 4 340 980 A1

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(43) Date of publication: 27.03.2024 Bulletin 2024/13 (21) Application number: 21811468.4 (22) Date of filing: 21.10.2021

(51) International Patent Classification (IPC):  B01J 4/02(2006.01) B01J 19/24(2006.01) C07C 273/02(2006.01) B01J 19/00(2006.01) C02F 1/44(2023.01) B01F 31/80(2022.01) (52) Cooperative Patent Classification (CPC): B01J 19/0033; B01J 19/0013; B01J 19/2405; B01J 19/0053; B01J 4/02; B01J 2219/00022; B01J 2219/00031; B01J 2219/00063; B01J 2219/00135; B01J 2219/00175; B01J 2219/0018; B01J 2219/00182; B01J 2219/00198; B01J 2219/002; B01J 2219/00209; B01J 2219/00216; B01J 2219/00234; C07C 273/02; B01J 2219/00009; C02F 1/441; C02F 2103/04; C02F 2209/02; C02F 2209/05; C02F 2209/42; C02F 1/68; Y02A 50/20 (86) International application number: PCT/IB2021/059706 (87) International publication number: WO 2022/243742 (24.11.2022 Gazette 2022/47)

(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: 21.05.2021 IT 202100013316 (71) Applicant: Aran S.r.l. 20124 Milano (IT)	(72) Inventor: ROMANÒ, Michele 21040 Origgio (Varese) (IT) (74) Representative: Grassi, Stefano  Bugnion S.p.A. Viale Lancetti, 17 20158 Milano 20158 Milano (IT)