Process for producing alkylpyridines

Details Process for producing alkylpyridines Process for producing alkylpyridines

1971-07-02

1976-01-13

Moatz, Harry I.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

252435, C07C21310

Patent

active

039324214

ABSTRACT:
Alkylpyridines such as 2-picoline and 4-picoline are prepared by contacting acetaldehyde and ammonia in a gaseous phase with a phosphate of two metals such as cobalt magnesium phosphate, cobalt aluminum phosphate or lead aluminum phosphate, impregnated with an aqueous solution of phosphoric acid or ammonium phosphate, as a catalyst, at a temperature of 350.degree. to 500.degree.C and a space velocity of 200 to 2,000 Hr.sup.-.sup.1. Silica-alumina and a promoter can be added to the catalyst. The impregnated catalyst has a higher catalytic activity and holds the initial high activity even after a considerable number of regeneration.

REFERENCES:
patent: 2523580 (1950-09-01), Mahan
patent: 3381011 (1968-04-01), Hall
patent: 3433792 (1969-03-01), Adams et al.
Adams et al., I, Brennstoff Chemie, Vol. 47, pp. 184-187, (1966).
Tschitschibabin, J. Prakt. Chemie, Vol. 107, pp. 122-128, (1924).

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