Continuous process for the preparation of organic isocyanates

Details Continuous process for the preparation of organic isocyanates Continuous process for the preparation of organic isocyanates

C - Chemistry, Metallurgy

07

C

C07C 263/10 (2006.01) C07C 265/14 (2006.01)

Patent

CA 2164383

Organic isocyanates are continuously prepared by reacting primary organic amines with phosgene in the presence of an inert, organic solvent, with the reaction mixture being circulated by means of a bubble column at a temperature of from 60 to 100°C and with the ratio of the quantity of thecirculated amine reaction products to the quantity of the amine supplied of from100:1 to 5:1.

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