Title:
酸化物触媒の製造方法
Document Type and Number:
Japanese Patent JP5191008
Kind Code:
B2
Abstract:
An object of the present invention is to provide a process for producing an oxide catalyst used in a vapor-phase catalytic oxidation or vapor-phase catalytic ammoxidation reaction of propane or isobutene, which enables a catalyst demonstrating favorable yield to be stably produced. According to the present invention, there is provided a process for producing an oxide catalyst used in a vapor-phase catalytic oxidation or vapor-phase catalytic ammoxidation reaction of propane or isobutane, comprising the steps of: (i) preparing a catalyst raw material mixture containing Mo, V and Nb and satisfying the relationships of 0.1 ¤ a ¤ 1 and 0.01 ¤ b ¤ 1 when atomic ratios of V and Nb to one atom of Mo are defined as a and b, respectively; (ii) drying the catalyst raw material mixture; and (iii) calcining a particle, in which a content of the particle having a particle diameter of 25 µm or less is 20% by mass or less and a mean particle diameter is from 35 to 70 µm, in an inert gas atmosphere.
Inventors:
Eri Tateno
Masatoshi Kaneda
Masatoshi Kaneda
Application Number:
JP2009547034A
Publication Date:
April 24, 2013
Filing Date:
December 11, 2008
Export Citation:
Assignee:
Asahi Kasei Chemicals Corporation
International Classes:
B01J23/28; B01J23/30; B01J27/057; B01J37/00; B01J37/04; B01J37/08; C07C253/24; C07C255/08; C07B61/00
Domestic Patent References:
| JPH08141401A | 1996-06-04 | |||
| JP2002292284A | 2002-10-08 | |||
| JP2002233768A | 2002-08-20 | |||
| JP2006248919A | 2006-09-21 | |||
| JP2002301373A | 2002-10-15 | |||
| JPS52140490A | 1977-11-24 | |||
| JP2001029788A | 2001-02-06 | |||
| JPH08141401A | 1996-06-04 | |||
| JP2002292284A | 2002-10-08 | |||
| JP2002233768A | 2002-08-20 | |||
| JP2006248919A | 2006-09-21 |
Foreign References:
| WO2004108278A1 | 2004-12-16 |
Attorney, Agent or Firm:
Yoshiyuki Inaba
Toshifumi Onuki
Kazuhiko Naito
Toshifumi Onuki
Kazuhiko Naito