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

1995-12-04

1997-02-04

Barts, Samuel

Organic compounds -- part of the class 532-570 series

Organic compounds

Isocyanate esters

C07C26310

Patent

active

055999689

ABSTRACT:
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.degree. to 100.degree. C. and with the ratio of the quantity of the circulated amine reaction products to the quantity of the amine supplied of from 100:1 to 5:1.

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