METHOD FOR PRODUCING METAL OXIDE CATALYST

Title:

METHOD FOR PRODUCING METAL OXIDE CATALYST

Document Type and Number:

WIPO Patent Application WO/2004/091779

Kind Code:

A1

Abstract:

Disclosed is a method for producing a metal oxide catalyst which is preferably used when acrylic acid or acrylonitrile is produced at high yield by single-step contact oxidation of propane. The method is characterized by using metal tellurium fine particles as the raw material for the oxide catalyst composed of metal elements Mo-V-Nb-Te, which metal tellurium fine particles are obtained by reducing a Te compound with a reducing agent. The metal tellurium fine particles are preferably composed of primary particles having a particle diameter of not more than 4.0 μm. By using a metal oxide obtained by such a method, acrylic acid can be produced from propane by a single-step oxidation process at a high yield not less than 40%.

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Inventors:

TU XINLIN (JP)
SUMIDA YUUICHI (JP)
TAKAHASHI MAMORU (JP)
NIIZUMA HIROSHI (JP)

Application Number:

PCT/JP2004/005264

Publication Date:

October 28, 2004

Filing Date:

April 13, 2004

Export Citation:

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Assignee:

TOAGOSEI CO LTD (JP)
TU XINLIN (JP)
SUMIDA YUUICHI (JP)
TAKAHASHI MAMORU (JP)
NIIDUMA HIROSHI (JP)

International Classes:

B01J23/00; B01J23/20; B01J23/28; B01J27/057; B01J37/16; C07B61/00; C07C51/215; C07C57/05; C07C253/24; C07C255/08; (IPC1-7): B01J27/057; B01J37/16; C07C57/05; C07C51/215; C07C255/08; C07C253/24

Foreign References:

JPH11226408A

1999-08-24

Other References: