WO2025003460 - SEMI-BATCH PROCESS FOR OXIDATIVE LEACHING OF NICKEL AND COBALT
National phase entry:
Publication Number
WO/2025/003460
Publication Date
02.01.2025
International Application No.
PCT/EP2024/068346
International Filing Date
28.06.2024
Title **
[English]
SEMI-BATCH PROCESS FOR OXIDATIVE LEACHING OF NICKEL AND COBALT
[French]
PROCÉDÉ SEMI-DISCONTINU POUR LA LIXIVIATION OXYDANTE DU NICKEL ET DU COBALT
Applicants **
UMICORE
Inventors
NEVEN, Margot
KLAASEN, Bart
VERDICKT, Werner
Priority Data
23182073.9
28.06.2023
EP
Application details
| Total Number of Claims/PCT | * |
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International Searching Authority |
EPO
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
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| Type of Assignment |
The Standard Agent's Assignment
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| Applicant's Legal Status |
Legal Entity
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| Entry into National Phase under |
Chapter II
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| Patent Delivery |
Send the Letters Patent by Courier
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| Translation |
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* The data is based on automatic recognition. Please verify and amend if necessary.
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2114 | |
| EPO | Filing, Examination, Granting | 8590 | |
| Japan | Filing, Examination, Granting | 2201 | |
| South Korea | Filing, Examination, Granting | 2030 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
19,675
The term for entry into the National Phase has expired. This quotation is for informational purposes only
Abstract[English]
The present invention provides a semi-batch process for the preparation of a nickel or cobalt sulphate solution, whereby sulphuric acid and hydrogen peroxide are peri- odically fed via a feed section to a reaction zone and whereby an acidic aqueous medium is circulated through the reactor until a predetermined concentration of nickel or cobalt, respectively, in said nickel or cobalt sulphate solution is achieved.[French]
La présente invention concerne un procédé semi-discontinu pour la préparation d'une solution de sulfate de nickel ou de cobalt, l'acide sulfurique et le peroxyde d'hydrogène étant introduits de manière périodique par l'intermédiaire d'une section d'alimentation dans une zone de réaction, et un milieu aqueux acide étant mis en circulation dans le réacteur jusqu'à ce que ladite solution de sulfate de nickel ou de cobalt présente une concentration prédéterminée de nickel ou de cobalt, respectivement.