Title:
METHOD FOR PRODUCING UNSATURATED NITRILE
Document Type and Number:
WIPO Patent Application WO/2019/220521
Kind Code:
A1
Abstract:
A method for producing an unsaturated nitrile, the method including a reaction step in which a hydrocarbon is subjected to vapor-phase catalytic ammoxidation in a fluidized-bed reactor to thereby produce the corresponding unsaturated nitrile, wherein in the reaction step, a powder is supplied using a carrier gas to a catalyst-rich layer within the fluidized-bed reactor, the ratio of the linear velocity LV1 of the carrier gas at a
supply port for supplying the powder to the fluidized-bed reactor therethrough to the linear velocity LV2 of the gas in the catalyst-rich layer, LV1/LV2, being 0.01-1,200.
Inventors:
TATENO ERI (JP)
TAMURA SHO (JP)
TAMURA SHO (JP)
Application Number:
PCT/JP2018/018635
Publication Date:
November 21, 2019
Filing Date:
May 15, 2018
Export Citation:
Assignee:
ASAHI CHEMICAL IND (JP)
International Classes:
C07C253/24; B01J23/30
Foreign References:
| JP2007308423A | 2007-11-29 | |||
| CN103566838A | 2014-02-12 | |||
| JPH10139749A | 1998-05-26 | |||
| JP2005193172A | 2005-07-21 | |||
| JP2005029528A | 2005-02-03 | |||
| JPH11244702A | 1999-09-14 | |||
| JP5779192B2 | 2015-09-16 |
Other References:
See also references of EP 3795560A4
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (JP)
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