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(11)

EP 4 798 370 A1

(12)

(43) Date of publication: 02.09.2026 Bulletin 2026/36 (21) Application number: 24808487.3 (22) Date of filing: 24.10.2024

(51) International Patent Classification (IPC):  B01J 23/652(2006.01) C07C 29/00(2006.01) B01J 37/02(2006.01) (52) Cooperative Patent Classification (CPC): B01J 23/6525; B01J 37/0201; C07C 27/04 (86) International application number: PCT/US2024/052870 (87) International publication number: WO 2025/090806 (01.05.2025 Gazette 2025/18)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: GE KH MA MD TN (30) Priority: 27.10.2023 US 202363593768 P 06.12.2023 GB 202318629 (71) Applicants: Johnson Matthey Davy Technologies Limited London EC2V 7AD (GB) Virent, Inc. Madison WI 53704 (US)

(72) Inventors: BLANK, Brian Madison, Wisconsin 53704 (US) HATCH, Dana MADISON, Wisconsin 53704 (US) HUGHES, Philip John Billingham TS23 1LB (GB) MCGUIRE, Paul Andrew Billingham TS23 1LB (GB) RIVAS-VELAZCO, Maria Elena Reading, RG4 9NH (GB) SMALL, Stuart Michael Billingham TS23 1LB (GB) STEENWINKEL, Edgar MADISON, Wisconsin 53704 (US) WAINWRIGHT, Stephen Gary Billingham TS23 1LB (GB) (74) Representative: J A Kemp LLP  80 Turnmill Street London EC1M 5QU London EC1M 5QU (GB)