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(11)

EP 4 823 980 A1

(12)

(43) Date of publication: 21.10.2026 Bulletin 2026/43 (21) Application number: 24904498.3 (22) Date of filing: 12.11.2024

(51) International Patent Classification (IPC):  C01B 21/20(2006.01) C01B 21/26(2006.01) B01J 19/10(2006.01) C01B 21/24(2006.01) C01B 21/30(2006.01) (52) Cooperative Patent Classification (CPC): C01B 21/203; C01B 21/40; B01J 19/08; B01J 19/121; B01J 19/125; B01J 19/126; B01J 19/123; B01J 19/088; B01J 19/129; B01J 2219/00162 (86) International application number: PCT/SE2024/050965 (87) International publication number: WO 2025/127980 (19.06.2025 Gazette 2025/25)

(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: 11.12.2023 SE 2351414 (71) Applicant: Nitrocapt AB 753 23 Uppsala (SE)	(72) Inventors: NANAYAKKARA, Sankha 756 59 Uppsala (SE) COORAY, Vernon 756 46 Uppsala (SE) FORSBERG, Gustaf 749 60 Örsundsbro (SE) (74) Representative: Kransell & Wennborg KB  P.O. Box 27834 115 93 Stockholm 115 93 Stockholm (SE)