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(11)

EP 4 196 618 A1

(12)

(43) Date of publication: 21.06.2023 Bulletin 2023/25 (21) Application number: 21746824.8 (22) Date of filing: 21.07.2021

(51) International Patent Classification (IPC):  C22B 23/00(2006.01) C07C 51/42(2006.01) C07C 51/265(2006.01) C22B 47/00(2006.01) B01J 31/00(2006.01) (52) Cooperative Patent Classification (CPC): C22B 23/00; C22B 47/0072; C22B 47/009; B01J 23/94; B01J 23/92; Y02P 10/20 (86) International application number: PCT/IB2021/056614 (87) International publication number: WO 2022/034401 (17.02.2022 Gazette 2022/07)

(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: 14.08.2020 US 202063065738 P (71) Applicant: Koch Technology Solutions UK Limited 4th Floor London EC2V 7JE (GB)	(72) Inventors: GANNON, Peter Anthony Wichita, Kansas 67220 (US) WELLS, Ashley James Wichita, Kansas 67220 (US) (74) Representative: Ter Meer Steinmeister & Partner  Patentanwälte mbB Nymphenburger Straße 4 80335 München 80335 München (DE)