Title:
METHOD FOR PRODUCING UNSATURATED NITRILE
Document Type and Number:
WIPO Patent Application WO/2012/117605
Kind Code:
A1
Abstract:
A method for producing unsaturated nitrile by supplying propane to a vapor phase contact ammoxidation reaction using a fluidized bed reactor, while in the presence of a composite oxide catalyst containing Mo, V and Nb, the method for producing unsaturated nitrile containing a step for adding a tungsten compound to the fluidized bed reactor, and adjusting within the fluidized bed reactor in a manner such that the mole ratio of the tungsten included in the tungsten compound to the molybdenum included in the composite oxide catalyst (W/Mo ratio) is in the range of 0.0001-0.1.
Inventors:
TAMURA SHO (JP)
SHOJI SADAO (JP)
SHOJI SADAO (JP)
Application Number:
PCT/JP2011/073576
Publication Date:
September 07, 2012
Filing Date:
October 13, 2011
Export Citation:
Assignee:
ASAHI KASEI CHEMICALS CORP (JP)
TAMURA SHO (JP)
SHOJI SADAO (JP)
TAMURA SHO (JP)
SHOJI SADAO (JP)
International Classes:
B01J23/28; C07C253/24; B01J27/057; C07C255/08; C07B61/00
Domestic Patent References:
| WO2009151254A2 | 2009-12-17 | |||
| WO2009048553A2 | 2009-04-16 |
Foreign References:
| JP2007308423A | 2007-11-29 | |||
| JPH05279313A | 1993-10-26 | |||
| JPH05208136A | 1993-08-20 | |||
| JPH02257A | 1990-01-05 | |||
| JP2007308423A | 2007-11-29 | |||
| JPH1028862A | 1998-02-03 | |||
| JPH11244702A | 1999-09-14 |
Other References:
GRASSELLI, R.K. ET AL.: "Doping of MoVNbTeO (M1) and MoVTeO (M2) Phases for Selective Oxidation of Propane and Propylene to Acrylic Acid", TOPICS IN CATALYSIS, vol. 50, no. 1-4, 2008, pages 66 - 73, XP019649863, DOI: doi:10.1007/s11244-008-9097-9
See also references of EP 2682385A4
See also references of EP 2682385A4
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (JP)
Yoshiyuki Inaba (JP)
Yoshiyuki Inaba (JP)
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Claims: