Process for producing pyridine bases

Details Process for producing pyridine bases Process for producing pyridine bases

1974-08-05

1976-03-23

Moatz, Harry I.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

252449, 252453, 252454, 252456, 252457, C07D21308, C07D21310, C07D21312

Patent

active

039460207

ABSTRACT:
Pyridine bases are produced in higher yield from at least one of aliphatic carbonyl compounds and ammonia by reaction at 350.degree. to 550.degree.C under the atmospheric pressure at a space velocity of 100 to 10,000 hr.sup.-.sup.1 in the presence of a catalyst prepared by immersing silica-alumina or a silica-alumina mixture containing a promoter in an aqueous solution of ammonium halide such as ammonium chloride, ammonium iodide or ammonium bromide at a concentration of not more than 20% by weight at room temperature to 80.degree.C, washing the immersed silica-alumina or the mixture with water, and drying and calcining the same at 300.degree.C or higher. Regeneration of the catalyst after the reaction can be carried out for a much shortened time.

REFERENCES:
patent: 3280040 (1966-10-01), Jaffe
patent: 3317438 (1967-05-01), Engebretson et al.
patent: 3375064 (1968-03-01), Miale et al.
patent: 3381011 (1968-04-01), Hall

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