(19)

(11)

EP 4 073 282 A2

(12)

(88) Date of publication A3: 30.09.2021 (43) Date of publication: 19.10.2022 Bulletin 2022/42 (21) Application number: 20903056.8 (22) Date of filing: 11.12.2020

(51) International Patent Classification (IPC):  C22B 3/14(2006.01) C22B 3/44(2006.01) C22B 3/16(2006.01) (52) Cooperative Patent Classification (CPC): G21G 1/0005; C22B 3/24; C22B 3/44; C22B 26/20; Y02P 10/20 (86) International application number: PCT/US2020/064710 (87) International publication number: WO 2021/126719 (24.06.2021 Gazette 2021/25)

(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 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: 11.12.2019 US 201962946592 P 05.06.2020 US 202016894679 (71) Applicant: Battelle Memorial Institute Richland, WA 99352 (US)	(72) Inventors: O'HARA, Matthew J. Richland, WA 99354 (US) HALL, Gabriel B. Richland, WA 99354 (US) BORON-BRENNER, Lucas P. Richland, WA 99354 (US) (74) Representative: Vinsome, Rex Martin  Murgitroyd & Company Newcastle 3 Collingwood Street Newcastle NE1 1JW Newcastle NE1 1JW (GB)