(19)

(11)

EP 4 539 975 A1

(12)

(43) Date of publication: 23.04.2025 Bulletin 2025/17 (21) Application number: 23733281.2 (22) Date of filing: 14.06.2023

(51) International Patent Classification (IPC):  B01J 7/00(2006.01) B01J 19/18(2006.01) B01J 19/00(2006.01) B01J 19/14(2006.01) C01B 3/02(2006.01) (52) Cooperative Patent Classification (CPC): B01J 7/00; B01J 19/14; B01J 19/18; B01J 19/0066; B01J 2219/02; B01J 2219/00074; B01J 2219/0009; B01J 2219/00087; B01J 2219/00058; B01J 2219/00056; B01J 2219/00054; B01J 2219/00051; B01J 2219/00049; B01J 2219/00063; B01J 2219/00029; B01J 2219/00036; B01J 2219/0004; B01J 2219/00038; B01J 2219/00162; B01J 2219/00191; B01J 2219/00193; B01J 2219/00195; B01J 2219/00202; B01J 2219/00222; B01J 2219/00227; B01J 2219/00229; B01J 2219/002; C01B 3/08; C01B 2203/1628 (86) International application number: PCT/EP2023/065990 (87) International publication number: WO 2023/242284 (21.12.2023 Gazette 2023/51)

(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: KH MA MD TN (30) Priority: 14.06.2022 GB 202208694 (71) Applicant: New Heat Development Limited Eden Hartlepool TS27 4SL (GB)	(72) Inventor: SHANKER, Avinash Castle Eden Hartlepool TS27 4SL (GB) (74) Representative: Schlich  9 St Catherine's Road Littlehampton West Sussex BN17 5HS West Sussex BN17 5HS (GB)