(19)
(11) EP 4 824 303 A1

(12)

(43) Date of publication:
21.10.2026 Bulletin 2026/43

(21) Application number: 24833259.5

(22) Date of filing: 13.12.2024
(51) International Patent Classification (IPC): 
C22B 3/08(2006.01)
C22B 3/10(2006.01)
 C22B 23/00(2006.01)
C22B 3/00(2006.01)
(52) Cooperative Patent Classification (CPC):
C22B 23/0423; C22B 23/043; C22B 3/08; C22B 23/0407; C22B 23/0461; C22B 3/42; C22B 3/3846; C22B 23/0415
(86) International application number:
PCT/EP2024/086252
(87) International publication number:
WO 2025/125584 (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: 15.12.2023 EP 23217292

(71) Applicant: Umicore
1000 Brussels (BE)

(72) Inventors:
  • KLAASEN, Bart
    2250 Olen (BE)
  • NEVEN, Margot
    2250 Olen (BE)
  • VERDICKT, Werner
    2250 Olen (BE)

(74) Representative: Umicore RDI Patent Department 
Watertorenstraat 33
2250 Olen
2250 Olen (BE)

   


(54) PROCESS FOR THE OXIDATIVE LEACHING OF NICKEL AND/OR COBALT WITH FERRIC IRON