WO2025223879 - METHOD FOR PREPARING A CATALYST BASED ON FINES FROM A CATALYST LEACHING RESIDUE
National phase entry is expected:
Publication Number
WO/2025/223879
Publication Date
30.10.2025
International Application No.
PCT/EP2025/060018
International Filing Date
11.04.2025
Title **
[English]
METHOD FOR PREPARING A CATALYST BASED ON FINES FROM A CATALYST LEACHING RESIDUE
[French]
PROCÉDÉ DE PRÉPARATION D'UN CATALYSEUR À BASE DE FINES ISSUES D'UN RÉSIDU DE LIXIVIATION DE CATALYSEUR
Applicants **
IFP ENERGIES NOUVELLES
Inventors
DELPOUX, Olivier
DEVERS, Elodie
Priority Data
FR2404396
26.04.2024
FR
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
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| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
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| Pages of Specification | * |
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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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| * | |
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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 | 2257 | |
| EPO | Filing, Examination, Granting | 9792 | |
| Japan | Filing, Examination, Granting | 2214 | |
| South Korea | Filing, Examination, Granting | 2197 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
21,200
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Abstract[English]
A method for preparing a catalyst comprising a group VIB metal and/or a group VIII metal, and an oxide support: a) providing fines having a D90 size of less than or equal to 500 micrometers of a catalyst comprising a group VIB metal and/or a group VIII metal, and an oxide support; b) extracting a portion of the group VIB metal and/or a portion of the group VIII metal from said fines with an extraction solution comprising an acid to obtain a solution of extracted metal(s) and a leaching residue; c) preparing a mixture comprising said leaching residue obtained in step b) and an extrusion agent; d) kneading; e) optionally adding a neutralizing agent; f) shaping; g) drying.[French]
Procédé de préparation d'un catalyseur comprenant un métal du groupe VIB et/ou un métal du groupe VIII, et un support d'oxyde : a) on met à disposition de fines ayant une taille D90 inférieure ou égale à 500 micromètres d'un catalyseur comprenant un métal du groupe VIB et/ou un métal du groupe VIII, et un support d'oxyde, b) on extrait une partie du métal du groupe VIB et/ou une partie du métal du groupe VIII desdites fines par une solution d'extraction comprenant un acide pour obtenir une solution de métal/métaux extrait(s) et un résidu de lixiviation, c) on prépare un mélange comprenant ledit résidu de lixiviation obtenu à l'étape b) et un agent d'extrusion, d) on effectue un malaxage, e) on ajoute optionnellement un agent de neutralisation, f) on mets en forme, g) on sèche.