(19)
(11) EP 4 430 217 A1

(12)

(43) Date of publication:
18.09.2024 Bulletin 2024/38

(21) Application number: 22818617.7

(22) Date of filing: 10.11.2022
(51) International Patent Classification (IPC): 
C22B 3/08(2006.01)
C22B 3/00(2006.01)
(52) Cooperative Patent Classification (CPC):
C22B 23/043; C22B 23/0484; C22B 3/08; Y02P 10/20
(86) International application number:
PCT/EP2022/081451
(87) International publication number:
WO 2023/083953 (19.05.2023 Gazette 2023/20)
(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: 12.11.2021 EP 21208049

(71) Applicant: Solvay SA
1120 Brussels (BE)

(72) Inventors:
  • LACADENA, Maria Jose
    1030 Brussels (BE)
  • JAMES, Alun Pryce
    Liverpool L23 8SW (GB)
  • VASQUEZ, Oscar
    Perth, Western Australia 6051 (AU)

(74) Representative: Kraus & Lederer PartGmbB 
Thomas-Wimmer-Ring 15
80539 München
80539 München (DE)

   


(54) SELECTIVE ACID LEACHING OF MIXED HYDROXIDE PRECIPITATE