METHOD FOR PRODUCING SILICA-SUPPORTED CATALYST, AND METHOD FOR PRODUCING UNSATURATED CARBOXYLIC ACID OR UNSATURATED NITRILE

WIPO Patent Application WO/2010/087262

A1

Disclosed is a silica-supported catalyst having excellent wear resistance, by which an object product can be obtained with excellent yield. Specifically disclosed is a method for producing a silica-supported catalyst which contains Mo, V, Nb and component X (that is Sb and/or Te), and is used in a vapor-phase catalytic oxidation reaction or vapor-phase catalytic ammoxidation reaction of propane. The method for producing a silica-supported catalyst comprises: (I) a step wherein Mo, V, Nb, component X, a silica sol and water are mixed, thereby preparing a starting material blended solution; (II) a step wherein the starting material blended solution is dried, thereby obtaining a dried powder; and (III) a step wherein the dried powder is fired, thereby obtaining a silica-supported catalyst. In the method for producing a silica-supported catalyst, the silica sol contains 10-270 ppm by weight of nitrate ions relative to SiO2.

ISHII YUSUKE (JP)
KATO TAKAAKI (JP)

PCT/JP2010/050679

August 05, 2010

January 21, 2010

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ASAHI KASEI CHEMICALS CORP (JP)
ISHII YUSUKE (JP)
KATO TAKAAKI (JP)

B01J23/28; B01J23/30; B01J23/34; B01J27/057; B01J37/02; C07C51/215; C07C57/05; C07C253/24; C07C255/08; C07B61/00

JP2001259420A	2001-09-25
JP2001276618A	2001-10-09
JP2002219362A	2002-08-06
JPH0220563B2	1990-05-09
JPH06316407A	1994-11-15
JPS627622A	1987-01-14
JPH0575692B2	1993-10-21
JP2009020066A	2009-01-29

"Catalyst Handbook", 25 February 1967
See also references of EP 2392399A4

INABA, Yoshiyuki et al. (JP)
Yoshiyuki Inaba (JP)

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