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Primary Examiner: Brust, Joseph Paul
Assistant Examiner:
Attorney: Sprung, Felfe, Horn, Lynch & Kramer

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Title: Process for the preparation of acrylonitrile

Abstract: A process for the preparation of acrylonitrile by the ammoxidation reaction of propylene, characterized by using an oxide type catalyst which contains, as active ingredients, molybdenum, bismuth, iron and at least one element selected from potassium, rubidium and cesium in specifically limited proportions and which may further contain sodium and/or phosphorus. By the use of such a specific catalyst, the selectivity for the desired acrylonitrile is remarkably improved, and there can be attained high yield of the product. In the process of the present invention, the catalyst can maintain a high activity and a high selectivity for a long time, without undergoing attrition. The catalyst is well prevented from sublimation-escaping of the ingredient molybdenum therefrom.


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Inventors: Aoki, Kunitoshi (Tokyo, JP)
Honda, Makoto (Tokyo, JP)
Dozono, Tetsuro (Yokosuka, JP)
Katsumata, Tsutomu (Yokohama, JP)

Application Number: 971293
Filing Date: 1978-12-20
Publication_date: 1980-10-14
Assignee: Asahi Kasei Kogyo Kabushiki Kaisha (Osaka, JP)
Primary Class(es): 558/324 558/323
Other Classes:
US Patent Ref:
2904580Sep, 1959Ido, Jr.260/465.
3135783Jun, 1964Sennewald et al.260/465.
3629148Dec, 1971Dominik et al.260/465.
3642930Feb, 1972Grasselli et al.260/465.
3712912Jan, 1973Hausweiler et al.260/465.
3766092Oct, 1973Honda et al.260/465.
3907859Sep, 1975Grasselli et al.260/465.
3993680Nov, 1976Grasselli et al.260/465.
4123453Oct, 1978Grasselli et al.260/465.

Other Refs: 1243175210422338-1796746-506847-3902547-1641948-1329050-12951951-286171347175
Jun, 1967DE.
Aug, 1972DE.
Sep, 1963JP.
Jan, 1971JP.
Jun, 1972JP
Sep, 1972JP.
Feb, 1973JP.
Oct, 1975JP.
Aug, 1976JP.
Feb, 1974GB.
Other References: Kunii et al., Fluidization Engineering, 1962, pp. 8-11, John Wiley & Sons, Inc., N.Y.