PRODUCTION METHOD OF ALIPHATIC/ALICYCLIC ISOCYANATE

摘要

PROBLEM TO BE SOLVED: To produce an aliphatic/alicyclic isocyanate by the phosgenation in gas phase of an amine while avoiding the contamination of a reactor and the blockade of a gas flow channel caused by the formation of solid deposits. SOLUTION: This new method for producing the aliphatic/alicyclic isocyanate and tri-isocyanate comprises phosgenating an aliphatic/alicyclic diamine and triamine in a gas phase while accelerating at least one of the reactants in an area in which the reactants are mixed.