Title:
気相酸化触媒およびそれを用いたアクリル酸の製造方法
Document Type and Number:
Japanese Patent JP4646684
Kind Code:
B2
Abstract:
A support for a gas-phase oxidation catalyst, the support including a solid acid, of which acid strength (H 0 ) meets an inequality: -5.6 ‰¤ H 0 ‰¤ 1.5; a gas-phase oxidation catalyst including the above support and a complex oxide containing molybdenum and vanadium as essential components, the complex oxide being supported on the support; a process for producing acrylic acid by gas-phase catalytic oxidation of acrolein with molecular oxygen, the process including carrying out the gas-phase catalytic oxidation in a presence of the above gas-phase oxidation catalyst; and a process for producing the above support, the process including controlling an acid strength (H 0 ) of a solid acid so as to meet an inequality: -5.6 ‰¤ H 0 ‰¤ 1.5 by adjusting a calcination temperature in a preparation of the solid acid contained in the support.
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Inventors:
Naohiro Fukumoto
Michio Tanimoto
Michio Tanimoto
Application Number:
JP2005120243A
Publication Date:
March 09, 2011
Filing Date:
April 18, 2005
Export Citation:
Assignee:
Nippon Shokubai Co., Ltd.
International Classes:
B01J23/88; B01J32/00; B01J37/08; C07C51/235; C07C57/055; C07B61/00
Domestic Patent References:
| JP2004041909A | ||||
| JP62026245A | ||||
| JP2004255343A | ||||
| JP8047641A | ||||
| JP49095952A |
Attorney, Agent or Firm:
Kyuichi Ueki
Tadashi Sugakawa
Osamu Futakuchi
Hiroaki Ito
Tadashi Sugakawa
Osamu Futakuchi
Hiroaki Ito