WO2023213919 - PROCESS FOR THE OXIDATIVE LEACHING OF A METAL
National phase entry:
Publication Number
WO/2023/213919
Publication Date
09.11.2023
International Application No.
PCT/EP2023/061744
International Filing Date
04.05.2023
Title **
[English]
PROCESS FOR THE OXIDATIVE LEACHING OF A METAL
[French]
PROCÉDÉ DE LIXIVIATION OXYDANTE D'UN MÉTAL
Applicants **
UMICORE
Rue du Marais 31
1000 Brussels, BE
Inventors
KLAASEN, Bart
UMICORE
Watertorenstraat 33
2250 Olen, BE
Priority Data
22171837.2
05.05.2022
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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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 | 1103 | |
| EPO | Filing, Examination | 4575 | |
| Japan | Filing | 587 | |
| South Korea | Filing | 574 | |
| USA | Filing, Examination | 2710 |
Total: 9549 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 chloride solution in a column reactor, whereby metal particles containing nickel and/or cobalt are reacted with an oxidative leach solution comprising hydrochloric 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 chlorure de nickel dans un réacteur à colonne, des particules métalliques contenant du nickel et/ou du cobalt étant mises à réagir avec une solution de lixiviation oxydante comprenant de l'acide chlorhydrique et du peroxyde d'hydrogène dans de l'eau et l'acide contenu dans la solution de lixiviation oxydante étant sensiblement appauvri.