WO2025132237 - CONTINUOUS COUNTER-CURRENT LEACHING METHOD FOR RECYCLING CATALYST METALS
National phase entry is expected:
Publication Number
WO/2025/132237
Publication Date
26.06.2025
International Application No.
PCT/EP2024/086610
International Filing Date
16.12.2024
Title **
[English]
CONTINUOUS COUNTER-CURRENT LEACHING METHOD FOR RECYCLING CATALYST METALS
[French]
PROCEDE CONTINU DE LIXIVIATION A CONTRE-COURANT POUR LE RECYCLAGE DE METAUX DE CATALYSEURS
Applicants **
IFP ENERGIES NOUVELLES
Inventors
BLANCKE, Guillaume
GRANDJEAN, Julien
CARRETTE, Pierre-Louis
DELPOUX, Olivier
Priority Data
FR2314548
20.12.2023
FR
Application details
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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 I
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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 | 2199 | |
| EPO | Filing, Examination, Granting | 9614 | |
| Japan | Filing, Examination, Granting | 2245 | |
| South Korea | Filing, Examination, Granting | 2139 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
20,937
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Abstract[English]
The present invention relates to a continuous method for the counter-current leaching of a spent catalyst, comprising at least one metal from group VIB and/or at least one metal from group VIII, optionally phosphorus and/or sulphur, and a support based on one or more oxides, characterised in that the method comprises N leaching steps, where N is greater than or equal to 2, in which the spent catalyst is brought into counter-current contact with a leaching solution comprising at least one organic compound, wherein the leaching solution is supplied continuously and flows through each of the leaching steps in the opposite direction to the flow of the spent catalyst, and wherein each leaching step is followed by a solid/liquid separation step to obtain a solution that contains one or more extracted metals and a catalyst depleted in one or more metals.[French]
La présente invention concerne un procédé continu de lixiviation à contre-courant d'un catalyseur usé comprenant au moins un métal du groupe VIB, et/ou au moins un métal du groupe VIII, optionnellement du phosphore et/ou du soufre, et un support à base d'oxyde(s), caractérisé en ce que ledit procédé comprend N étapes de lixiviation, N étant supérieur ou égal à 2, par mise en contact à contre-courant du catalyseur usé avec une solution de lixiviation comprenant au moins un composé organique, la solution de lixiviation étant alimentée de manière continue et parcourant chacune des étapes de lixiviation en sens opposé à la circulation du catalyseur usé, chaque étape de lixiviation étant suivie d'une étape de séparation solide/liquide pour obtenir une solution de métal/métaux extrait(s) et un catalyseur appauvri en métal/métaux.