WO2025132238 - BATCH LEACHING METHOD FOR RECYCLING CATALYST METALS
National phase entry is expected:
Publication Number
WO/2025/132238
Publication Date
26.06.2025
International Application No.
PCT/EP2024/086611
International Filing Date
16.12.2024
Title **
[English]
BATCH LEACHING METHOD FOR RECYCLING CATALYST METALS
[French]
PROCEDE DISCONTINU DE LIXIVIATION POUR LE RECYCLAGE DE METAUX DE CATALYSEURS
Applicants **
IFP ENERGIES NOUVELLES
Inventors
BLANCKE, Guillaume
GRANDJEAN, Julien
CARRETTE, Pierre-Louis
DELPOUX, Olivier
Priority Data
FR2314549
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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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2135 | |
| EPO | Filing, Examination, Granting | 8955 | |
| Japan | Filing, Examination, Granting | 2212 | |
| South Korea | Filing, Examination, Granting | 2105 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
20,147
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Abstract[English]
The invention relates to a batch method for leaching a spent catalyst comprising a metal from group VIB, and/or a metal from group VIII, and a support based on one or more oxides, characterised in that the method comprises N leaching steps, N being ≥ 2, by bringing the spent catalyst into contact with a leaching solution comprising an organic compound, wherein each leaching step is followed by a solid/liquid separation step, and wherein the method comprises the following successive steps i, i varying from 1 and N: i) bringing into contact: - the spent catalyst containing a metal content C(i-1) with - a leaching solution containing an extracted metal content S(N-i) to produce, after a solid/liquid separation step, - a spent catalyst containing a metal content C(i), and - the leaching solution containing an extracted metal content S(N-i+1), wherein C(i-1) > C(i) and S(N-i) < S(N-i+1).[French]
Procédé discontinu de lixiviation d'un catalyseur usé comprenant un métal du groupe VIB, et/ou un métal du groupe VIII et un support à base d'oxyde(s), caractérisé en ce que ledit procédé comprend N étapes de lixiviation, N étant ≥ 2, par mise en contact du catalyseur usé avec une solution de lixiviation comprenant un composé organique, chaque étape de lixiviation étant suivie d'une étape de séparation solide/liquide, le procédé comprenant les étapes successives i suivantes, i variant de 1 et N : i) on contacte : - le catalyseur usé contenant une teneur C(i-1) en métal/métaux, avec - une solution de lixiviation contenant une teneur S(N-i) en métal/métaux extrait(s), pour produire, après une étape de séparation solide/liquide, - un catalyseur usé contenant une teneur C(i) en métal/métaux, et - la solution de lixiviation contenant une teneur S(N-i+1) en métal/métaux extrait(s), dans lequel C(i-1) > C(i) et S(N-i) < S(N-i+1).