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(11)

EP 4 274 673 A1

(12)

(43) Date of publication: 15.11.2023 Bulletin 2023/46 (21) Application number: 22706612.3 (22) Date of filing: 18.02.2022

(51) International Patent Classification (IPC):  B01F 23/232(2022.01) B01F 25/314(2022.01) B01F 33/30(2022.01) B01F 23/2375(2022.01) B01F 25/433(2022.01) B01F 33/81(2022.01) (52) Cooperative Patent Classification (CPC): B01F 25/4333; B01F 33/811; B01F 23/2375; B01F 23/232; B01F 33/305; B01F 25/3142; Y02W 10/10 (86) International application number: PCT/EP2022/054096 (87) International publication number: WO 2022/179953 (01.09.2022 Gazette 2022/35)

(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: 24.02.2021 GB 202102632 (71) Applicant: Kure Group Limited Benfleet Essex, SS7 5TG (GB)	(72) Inventor: O'BRIEN, Cornelius Chelmsford Essex CM1 4YP (GB) (74) Representative: Page White Farrer  Bedford House 21a John Street London WC1N 2BF London WC1N 2BF (GB)