Title:
PROCESS FOR PRODUCING UNSATURATED NITRILES
Document Type and Number:
WIPO Patent Application WO/1996/023766
Kind Code:
A1
Abstract:
A process for producing unsaturated nitriles such as acrylonitrile or methacrylonitrile by the ammoxidation of organic compounds such as propylene, isobutene or tert-butanol, which comprises conducting ammoxidation in a reactor by controlling the ratio of the organic acids to the unreacted ammonia in the gas formed in the reaction to be in the range of 0.8 to 3.0, and leading the formed gas to a quenching tower, where the unreacted ammonia is reacted with the organic acids formed in the reactor to thereby fix the ammonia in the form of ammonium salts of the acids.
Inventors:
SOMEYA KEN (JP)
MIDORIKAWA HIDEO (JP)
MIDORIKAWA HIDEO (JP)
Application Number:
PCT/JP1996/000148
Publication Date:
August 08, 1996
Filing Date:
January 26, 1996
Export Citation:
Assignee:
ASAHI CHEMICAL IND (JP)
SOMEYA KEN (JP)
MIDORIKAWA HIDEO (JP)
SOMEYA KEN (JP)
MIDORIKAWA HIDEO (JP)
International Classes:
C07C253/24; C07C253/26; (IPC1-7): C07C255/08; C07C253/24; C07C253/34
Foreign References:
| JPS4533538B1 | ||||
| US3649179A | 1972-03-14 | |||
| JPS4834824A | 1973-05-22 | |||
| JPS4732968B1 | ||||
| JPS4861425A | 1973-08-28 | |||
| JPS4936690B1 | 1974-10-02 | |||
| JPS4993316A | 1974-09-05 | |||
| JPS4872122A | 1973-09-29 |
Other References:
See also references of EP 0807622A4
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