Process for continuous hot phosgenation of amines

Details Process for continuous hot phosgenation of amines Process for continuous hot phosgenation of amines

1983-10-11

1985-10-29

Siegel, Alan

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260453P, C07C 6900

Patent

active

045499918

ABSTRACT:
This invention relates to a process for the production of organic isocyanates by the continous hot phosgenation of amines, whereby the solids are retained in the reactor by an appropriate separator and the isocyanate formed during the reaction is constantly removed from the reactor. Preferably the amount of solids of the suspension in the reactor is set so that the amount of the isocyanate taken off per unit of time reaches a maximum.

REFERENCES:
patent: 3829458 (1974-08-01), Horn et al.
patent: 4092343 (1978-05-01), Frulla
patent: 4128569 (1978-12-01), Horn et al.
"Ullmanns Encyclopaedic der teshnischen Chemie", Fourth Edition, vol. 13, p. 350 ff.

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