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(11)

EP 3 793 951 A1

(12)

(43) Date of publication: 24.03.2021 Bulletin 2021/12 (21) Application number: 19726085.4 (22) Date of filing: 15.05.2019

(51) International Patent Classification (IPC):  C02F 1/70(2006.01) B01J 21/18(2006.01) B01J 23/755(2006.01) C02F 101/32(2006.01) C02F 101/36(2006.01) C02F 103/32(2006.01) C02F 1/72(2006.01) B01J 23/42(2006.01) C02F 1/02(2006.01) C02F 101/34(2006.01) C02F 101/38(2006.01) (86) International application number: PCT/GB2019/051335 (87) International publication number: WO 2019/220114 (21.11.2019 Gazette 2019/47)

(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: 15.05.2018 GB 201807860 (71) Applicant: Imperial College Of Science, Technology And Medicine Londres SW7 2AZ (GB)	(72) Inventors: MALKO, Daniel London SW7 2PG (GB) KUCERNAK, Anthony R. J. London SW7 2PG (GB) RUBIO-GARCIA, Javier London SW7 2PG (GB) (74) Representative: HGF  1 City Walk Leeds LS11 9DX Leeds LS11 9DX (GB)