Continuous process for the production of organic isocyanates

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

C - Chemistry, Metallurgy

08

G

260/455

C08G 18/00 (2006.01) B01J 19/26 (2006.01)

Patent

CA 1183145

A CONTINUOUS PROCESS FOR THE PRODUCTION OF ORGANIC ISOCYANATES ABSTRACT OF THE DISCLOSURE Organic mono- or poly-isocyanates are produced on a continuous basis by phosgenating the corresponding amines. A solution of the amine to be phosgenated is continuously sprayed through a smooth-jet nozzle into a solution of phosgene continuously flowing through a mixing chamber. The mixing chamber is maintained at a temperature of 120 to 300°C and a pressure of from 10 to 1000 bars. The molar ratio of phosgene to primary amino groups is generally from 2:1 to 30:1.

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