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1. WO2009106474 - PHASE-ENRICHED MOVTENB MIXED OXIDE CATALYST AND METHODS FOR THE PREPARATION THEREOF

Publication Number WO/2009/106474
Publication Date 03.09.2009
International Application No. PCT/EP2009/051961
International Filing Date 19.02.2009
IPC
B01J 23/00 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
23Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/113
B01J 37/08 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
37Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
08Heat treatment
B01J 37/00 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
37Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
CPC
B01J 23/002
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
23Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
002Mixed oxides other than spinels, e.g. perovskite
B01J 2523/00
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
2523Constitutive chemical elements of heterogeneous catalysts
B01J 35/0006
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
35Catalysts, in general, characterised by their form or physical properties
0006Catalysts containing parts with different compositions
B01J 37/08
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
37Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
08Heat treatment
B01J 37/084
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
37Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
08Heat treatment
082Decomposition and pyrolysis
084Decomposition of carbon-containing compounds into carbon
Applicants
  • TIMPE, Olaf [DE]/[DE]
  • SAKTHIVEL, Ayyamperumal [IN]/[IN]
  • TRUNSCHKE, Annette [DE]/[DE]
  • SCHLÖGL, Robert [DE]/[DE]
Inventors
  • TIMPE, Olaf
  • SAKTHIVEL, Ayyamperumal
  • TRUNSCHKE, Annette
  • SCHLÖGL, Robert
Agents
  • HOFFMANN EITLE
Priority Data
61/031,24725.02.2008US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PHASE-ENRICHED MOVTENB MIXED OXIDE CATALYST AND METHODS FOR THE PREPARATION THEREOF
(FR) CATALYSEUR À PHASE ENRICHIE À BASE DE MÉLANGE D'OXYDES DE MO-V-TE-NB, ET PROCÉDÉ D'ÉLABORATION
Abstract
(EN)
The present invention provides a method for preparing a metal oxide catalyst material comprising oxides of molybdenum (Mo), vanadium (V), tellurium (Te) and niobium (Nb), said process comprising the steps of (i) subjecting a catalyst precursor mixture comprising molybdenum (Mo), vanadium (V), Tellurium (Te) and niobium (Nb) to a calcination treatment in an oxygen-containing atmosphere at a temperature of 150 to 400°C to prepare a calcined catalyst material and (ii) subjecting the calcined catalyst material to a treatment at a pressure of at least 10MPa and a temperature of at least 400°C in the presence of an inert fluid phase to prepare a catalyst material comprising oxides of molybdenum (Mo), vanadium (V), Tellurium (Te) and niobium (Nb). This method results in catalyst materials having very high contents of crystallographic Ml phase and excellent propane conversion, rates and selectivities for acrylic acid in the oxidation of propane.
(FR)
La présente invention concerne un procédé d'élaboration d'un matériau catalyseur à base d'oxydes de métaux comprenant des oxydes de molybdène (Mo), de vanadium (V), de tellure (Te) et de niobium (Nb). Ce procédé consiste d'abord (i) à prendre un mélange précurseur du catalyseur comprenant du molybdène (Mo), du vanadium (V), du tellure (Te) et du niobium (Nb), et à le calciner sous atmosphère oxygénée à une température de 150 à 400°C de façon à obtenir un matériau catalyseur calciné. Le procédé consiste ensuite (ii) à prendre ce matériau catalyseur calciné et à le soumettre à un traitement à une pression d'au moins 10 MPa à une température d'au moins 400°C en présence d'une phase fluide inerte de façon élaborer un matériau catalyseur comprenant des oxydes de molybdène (Mo), de vanadium (V), de tellure (Te) et de niobium (Nb). Ce procédé donne des matériaux catalyseurs présentant des teneurs très élevées de phase cristallographique MI, offrant une excellente conversion en propane, ainsi que, lors de la conversion du propane, des taux et des coefficients de sélectivité élevés pour l'acide acrylique.
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