Method for producing chloroformates

Details Method for producing chloroformates Method for producing chloroformates

1972-01-28

1976-06-29

Rizzo, Nicholas S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

23260, C07C 6802

Patent

active

039667863

ABSTRACT:
Various chloroformates are produced from aliphatic, substituted aliphatic, cycloaliphatic, aromatic and arylaliphatic alcohols having up to 20 carbon atoms and of phosgene in a continuous, concurrent flow process, with the alcohol starting material being atomized into the reactor, whereby the reaction takes place largely in the fog phase. The vapor pressure of the phosgene can be utilized for the creation of the fog phase and the termination of the atomized state can be used for efficiently separating the chloroformate end product from the hydrogen chloride by product. The process can be carried out in a reactor comprising a reaction zone, a charged zone and a zone for the recovery of the end product.

REFERENCES:
patent: 2337172 (1943-12-01), Wojcik
patent: 3646102 (1972-02-01), Kobayashi et al.
Saunders et al., J. Am. Chem. Soc., 73 3796-3797 (1951).

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