Nicotinamide production

Details Nicotinamide production Nicotinamide production

C - Chemistry, Metallurgy

07

D

260/297.6

C07D 213/82 (2006.01) C07D 213/81 (2006.01)

Patent

CA 1054605

Abstract of the Disclosure Nicotinamide is produced by aqueous ammonia hydrolysis of nicotinonitrile wherein the conversion is limited to at least 30% and no greater than 70%, with the nicotinonitrile concentration, expressed as weight product amide per 100 pounds of water, being at least 100 parts and no greater than 300 parts with the hydrolysis being effected in the presence of ammonium nicotinate in an amount sufficient to essentially eliminate net production thereof. Ammonia and nicotinonitrile are stripped from the hydrolysis effluent, and nicotinamide recovered by crystallization, from the stripped hydrolysis effluent. -i-

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