WO2023166118 - CONTINUOUS PROCESS FOR THE OXIDATIVE LEACHING OF NICKEL
National phase entry:
Publication Number
WO/2023/166118
Publication Date
07.09.2023
International Application No.
PCT/EP2023/055283
International Filing Date
02.03.2023
Title **
[English]
CONTINUOUS PROCESS FOR THE OXIDATIVE LEACHING OF NICKEL
[French]
PROCÉDÉ CONTINU DE LIXIVIATION OXYDATIVE DE NICKEL
Applicants **
UMICORE
Rue du Marais 31
1000 Brussels, BE
Inventors
KLAASEN, Bart
UMICORE
Watertorenstraat 33
2250 Olen, BE
WILLEKENS, Marjon
UMICORE
Watertorenstraat 33
2250 Olen, BE
Priority Data
22159893.1
03.03.2022
EP
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
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| Number of Drawings | * |
| Pages for Publication | * |
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| Pages of Specification | * |
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International Searching Authority |
EPO
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| Applicant's Legal Status |
Legal Entity
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| Entry into National Phase under |
Chapter I
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| Translation |
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing | 1165 | |
| EPO | Filing, Examination | 5260 | |
| Japan | Filing | 590 | |
| South Korea | Filing | 575 | |
| USA | Filing, Examination | 2710 |
Total: 10300 USD
The term for entry into the National Phase has expired. This quotation is for informational purposes only
Abstract[English]
The present invention provides a process for the preparation of a nickel sulphate solution in a column reactor, whereby metal particles containing nickel are reacted with an oxidative leach solution comprising sulphuric acid and hydrogen peroxide in water and whereby the acid in the oxidative leaching solution is substantially depleted.[French]
La présente invention concerne un procédé de préparation d'une solution de sulfate de nickel dans un réacteur à colonne, des particules métalliques contenant du nickel étant mises à réagir avec une solution de lixiviation oxydative comprenant de l'acide sulfurique et du peroxyde d'hydrogène dans de l'eau et l'acide dans la solution de lixiviation oxydative étant sensiblement appauvri.