METHOD FOR PREPARING CATALYST FOR SYNTHESIS OF UNSATURATED ALDEHYDE AND UNSATURATED CARBOXYLIC ACID, CATALYST PREPARED BY THE METHOD, AND METHOD FOR SYNTHESIS OF UNSATURATED ALDEHYDE AND UNSATURATED CARBOXYLIC ACID USING THE CATALYST

WIPO Patent Application WO/2003/057366

A1

A method for preparing a catalyst for the synthesis of an unsaturated aldehyde and an unsaturated carboxylic acid, which comprises a step of kneading particles containing molybdenum, bismuth and iron together with a liquid and extruding the kneaded product, a step of aging the molded product from the extrusion step, and a step of drying and/or firing the aged product, wherein the time of the contact of the particles containing molybdenum, bismuth and iron with the liquid is 1 to 48 hr, and the time of the above aging accounts for 50 % or more of the contact time of the particles containing molybdenum, bismuth and iron with the liquid. The method allows the control of the activity of the catalyst with ease, and can provide a catalyst having high activity and high selectivity.

KONDO MASAHIDE (JP)
KAWATO SEIICHI (JP)
KURODA TORU (JP)

PCT/JP2002/013519

July 17, 2003

December 25, 2002

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MITSUBISHI RAYON CO (JP)
KONDO MASAHIDE (JP)
KAWATO SEIICHI (JP)
KURODA TORU (JP)

B01J23/00; B01J23/887; B01J23/888; B01J27/192; B01J37/00; C07B61/00; C07C27/00; C07C27/14; C07C45/32; C07C45/35; C07C45/37; C07C47/22; C07C51/21; C07C51/215; C07C51/25; C07C57/05; (IPC1-7): B01J27/192; B01J23/88; B01J37/00; C07C27/14; C07C45/35; C07C47/22; C07C51/215; C07C57/05

US5072052A	1991-12-10
JPH044048A	1992-01-08
JPH1071333A	1998-03-17
JP2003010691A	2003-01-14

Kaneda, Nobuyuki (16th Kowa Bldg. 9-20, Akasaka 1-chom, Minato-ku Tokyo, JP)

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