WO2023006826 - CRYSTALLIZATION PROCESS FOR THE SEPARATION OF METALS
National phase entry:
Publication Number
WO/2023/006826
Publication Date
02.02.2023
International Application No.
PCT/EP2022/071100
International Filing Date
27.07.2022
Title **
[English]
CRYSTALLIZATION PROCESS FOR THE SEPARATION OF METALS
[French]
PROCESSUS DE CRISTALLISATION POUR LA SÉPARATION DE MÉTAUX
Applicants **
UMICORE
Rue du Marais 31
1000 Brussels, BE
Inventors
VERHEES, Pieter
Umicore
Watertorenstraat 33
2250 Olen, BE
Priority Data
21188417.6
29.07.2021
EP
Application details
| Total Number of Claims/PCT | * |
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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 | 1058 | |
| EPO | Filing, Examination | 4601 | |
| Japan | Filing | 591 | |
| South Korea | Filing | 575 | |
| USA | Filing, Examination | 2710 |
Total: 9535 USD
The term for entry into the National Phase has expired. This quotation is for informational purposes only
Abstract[English]
The present disclosure is related to a crystallization process for the recovery of metals from starting materials comprising Ni and Li.The starting materials, either in aqueous solution or solid form, are reacted with an aqueous solution, reaching an acidity of preferably at least 500 g/L sulfuric acid, at a temperature of at least 45 °C. Upon solid/liquid separation of the reaction products, a solid residue comprising the major part of the Ni as a hydrated sulfate, and an effluent solution comprising the major part of the Li, are obtained.This process is particularly suitable for recycling lithium-ion rechargeable batteries.[French]
La présente invention concerne un processus de cristallisation pour la récupération de métaux à partir de matériaux de départ comprenant du Ni et du Li. Les matériaux de départ, qu'ils soient en solution aqueuse ou sous forme solide, sont mis à réagir avec une solution aqueuse, atteignant une acidité de préférence d'au moins 500 g/L d'acide sulfurique, à une température d'au moins 45 °C. Lors de la séparation solide/liquide des produits de réaction, un résidu solide comprenant la majeure partie du Ni en tant que sulfate hydraté, et une solution effluente comprenant la majeure partie du Li, sont obtenus. Le procédé est particulièrement approprié pour le recyclage de batteries rechargeables au lithium-ion.