WO2025223878 - METHOD FOR PREPARING AN EXTRUDED CATALYST BASED ON CATALYST FINES WITHOUT FINAL CALCINATION
National phase entry is expected:
Publication Number
WO/2025/223878
Publication Date
30.10.2025
International Application No.
PCT/EP2025/060016
International Filing Date
11.04.2025
Title **
[English]
METHOD FOR PREPARING AN EXTRUDED CATALYST BASED ON CATALYST FINES WITHOUT FINAL CALCINATION
[French]
PROCEDE DE PREPARATION D'UN CATALYSEUR EXTRUDÉ À BASE DE FINES DE CATALYSEUR SANS CALCINATION FINALE
Applicants **
IFP ENERGIES NOUVELLES
Inventors
DELPOUX, Olivier
DEVERS, Elodie
Priority Data
FR2404394
26.04.2024
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 | 2110 | |
| EPO | Filing, Examination, Granting | 8406 | |
| Japan | Filing, Examination, Granting | 2154 | |
| South Korea | Filing, Examination, Granting | 2066 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
19,476
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Abstract[English]
A method for preparing a catalyst from catalyst fines comprising a group VIB metal, a group VIII metal, and an oxide support, said fines having a D90 size of less than or equal to 500 micrometers, the method comprising the following steps: a) mixing said fines and an extrusion aid, and optionally an inorganic oxide binder; b) kneading the mixture obtained in step a) by adding an aqueous solution containing a carboxylic acid; c) optionally adding a neutralizing agent chosen from an inorganic base and an organic base to said mixture obtained in step b); d) shaping the mixture obtained in step b) or c) by extrusion in order to obtain a solid; e) drying the solid obtained in step d) at a temperature below 200°C, without subsequently calcining it.[French]
Procédé de préparation d'un catalyseur à partir de fines de catalyseur comprenant un métal du groupe VIB, un métal du groupe VIII, et un support d'oxyde, lesdites fines ayant une taille D90 inférieure ou égale à 500 micromètres, le procédé comprenant les étapes suivantes : a) on mélange lesdites fines et un agent d'aide à l'extrusion, et optionnellement un liant d'oxyde inorganique, b) on effectue un malaxage du mélange obtenu à l'étape a) en ajoutant une solution aqueuse contenant un acide carboxylique, c) on ajoute optionnellement audit mélange obtenu à l'étape b) un agent de neutralisation choisi parmi une base inorganique et une base organique, d) on effectue une mise en forme par extrusion du mélange obtenu à l'étape b) ou c) pour obtenir un solide, e) on sèche le solide obtenu à l'étape d) à une température inférieure à 200°C, sans le calciner ultérieurement.