Manufacture of aliphatic isocyanates

Details Manufacture of aliphatic isocyanates Manufacture of aliphatic isocyanates

1976-01-16

1978-01-17

Torrence, Dolph H.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C11800

Patent

active

040692388

ABSTRACT:
A process for the manufacture of aliphatic isocyanates by thermal decomposition of aliphatic carbamic acid halides. The decomposition is carried out in stages and the hydrogen halide liberated is expelled, in the first stage, without passing inert gas through the reaction mixture, while in the second stage it is expelled while passing an inert gas, which is recycled, through the reaction mixture.

REFERENCES:
patent: 3465023 (1969-09-01), Ramal
patent: 3969389 (1976-07-01), Urbach et al.
patent: 3991094 (1976-11-01), Zanker

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