EP 4337802 A1 20240320 - PRODUCTION OF HIGH PURITY NICKEL AND COBALT COMPOUNDS
Title (en)
PRODUCTION OF HIGH PURITY NICKEL AND COBALT COMPOUNDS
Title (de)
HERSTELLUNG VON HOCHREINEN NICKEL- UND KOBALTVERBINDUNGEN
Title (fr)
PRODUCTION DE COMPOSÉS DE NICKEL ET DE COBALT DE HAUTE PURETÉ
Publication
Application
Priority
- AU 2021901424 A 20210513
- AU 2022050459 W 20220513
Abstract (en)
[origin: WO2022236381A1] A process for separating nickel and/or cobalt salts from crude nickel and/or cobalt bearing materials is disclosed. The process comprises treating a crude nickel and/or cobalt bearing material with a salt of iron or aluminium under conditions to remove at least some of one or more alkali metal ion and/or monovalent cation species as a jarosite / alunite precipitate to provide a solution having a reduced content of one or more alkali metal ion and/or monovalent cation species; and subjecting the solution obtained to increasing pH in a stepwise manner under conditions to provide a feed solution for further purification to produce nickel and/or cobalt salts suitable for the production of battery grade nickel or cobalt salts. A process for obtaining purified nickel and cobalt from the feed solution is also disclosed.
IPC 8 full level
C22B 23/00 (2006.01); B01D 11/04 (2006.01); C22B 3/38 (2006.01); C22B 5/18 (2006.01); C22B 7/04 (2006.01)
CPC (source: AU EP KR)
B01D 11/04 (2013.01 - EP); C01C 1/028 (2013.01 - KR); C01C 1/24 (2013.01 - KR); C01F 5/40 (2013.01 - EP KR); C01G 51/10 (2013.01 - EP); C01G 53/10 (2013.01 - EP); C22B 3/3842 (2021.05 - EP KR); C22B 3/3844 (2021.05 - AU); C22B 3/3846 (2021.05 - AU EP KR); C22B 23/043 (2013.01 - EP KR); C22B 23/0461 (2013.01 - AU EP KR); C22B 23/0484 (2013.01 - AU EP KR); C01C 1/028 (2013.01 - EP); C01C 1/24 (2013.01 - EP); C01P 2006/80 (2013.01 - EP KR); C22B 23/0407 (2013.01 - AU); Y02E 60/10 (2013.01 - EP); Y02P 10/20 (2015.11 - EP KR)
Designated contracting state (EPC)
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 state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2022236381 A1 20221117; AU 2022271919 A1 20231123; CN 117642519 A 20240301; EP 4337802 A1 20240320; JP 2024520304 A 20240524; KR 20240019147 A 20240214
DOCDB simple family (application)
AU 2022050459 W 20220513; AU 2022271919 A 20220513; CN 202280049760 A 20220513; EP 22806133 A 20220513; JP 2023569952 A 20220513; KR 20237043115 A 20220513