WO2026125007 - TANTALUM- AND SILICA-BASED HETEROGENEOUS CATALYST FOR CONVERTING A FEEDSTOCK COMPRISING ETHANOL INTO BUTADIENE
National phase entry is expected:
Publication Number
WO/2026/125007
Publication Date
18.06.2026
International Application No.
PCT/EP2025/084485
International Filing Date
27.11.2025
Title **
[English]
TANTALUM- AND SILICA-BASED HETEROGENEOUS CATALYST FOR CONVERTING A FEEDSTOCK COMPRISING ETHANOL INTO BUTADIENE
[French]
CATALYSEUR HETEROGENE A BASE DE TANTALE ET DE SILICE POUR CONVERTIR UNE CHARGE COMPRENANT DE L'ETHANOL EN BUTADIENE
Applicants **
IFP ENERGIES NOUVELLES
COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
Inventors
CADRAN, Nicolas
Priority Data
FR2414131
13.12.2024
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 | 1880 | |
| EPO | Filing, Examination, Granting | 8126 | |
| Japan | Filing, Examination, Granting | 1970 | |
| South Korea | Filing, Examination, Granting | 1694 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
18,410
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Abstract[English]
The present invention relates to a catalyst comprising tantalum and a silica-based matrix, the catalyst having a tantalum content by weight of between 0.1% and 10% by weight relative to the weight of the silica-based matrix, the catalyst comprising aluminium at a content such that the Ta/Al molar ratio is 5 or higher, and the catalyst having: a content of Gp1 alkali metal elements such that the molar ratio (Gp1/Al)/Ta of Gp1 alkali metal elements relative to the element aluminium Al, per molar unit of tantalum Ta, is 0.01 or lower, and a content of Gp2 alkaline earth elements such that the molar ratio Ta/Gp2 of the element tantalum Ta relative to the Gp2 alkaline earth elements is 15 or higher.[French]
La présente invention concerne un catalyseur comprenant du tantale et une matrice à base de silice, le catalyseur présentant une teneur pondérale en tantale comprise entre 0,1 et 10% poids par rapport au poids de la matrice à base de silice, le catalyseur comprenant de l'aluminium à une teneur telle que le ratio molaire Ta/Al est supérieur ou égal à 5, et le catalyseur ayant : une teneur en éléments alcalins Gp1 telle que ratio molaire (Gp1/Al)/Ta en éléments alcalins Gp1 par rapport à l'élément aluminium Al, par unité molaire de tantale Ta, est inférieur ou égal à 0,01, et une teneur en éléments alcalinoterreux Gp2 telle que le ratio molaire Ta/Gp2 en élément tantale Ta par rapport aux éléments alcalinoterreux Gp2 est supérieur ou égal à 15.