Direct fluorination process for making perfluorinated organic su

Details Direct fluorination process for making perfluorinated organic su Direct fluorination process for making perfluorinated organic su

1994-02-01

1995-03-21

Dees, Jose G.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

554226, 560180, 560184, 560192, 560227, C07C 5321, C07C 6963

Patent

active

053997182

ABSTRACT:
A liquid phase process for making perfluorinated organic substances which comprises directly contacting in a temperature-controlled reactor a diluted solution or dispersion of a perfluorinateable, organic substance in a liquid, inert medium with a stoichiometric excess of fluorine gas, optionally diluted with an inert gas, to perfluorinate said organic substance at a temperature and a flow rate of inert gas (if used) sufficient to volatilize the resulting by-product hydrogen fluoride, removing said hydrogen fluoride from the reactor as it is produced, and separately removing from the reactor the resultant solution or dispersion of perfluorinated organic substance.

REFERENCES:
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patent: 3847978 (1974-11-01), Sianesi et al.
patent: 4089869 (1978-05-01), Yamabe et al.
patent: 4523039 (1985-06-01), Lagow
patent: 4686024 (1987-08-01), Scherer
patent: 4755567 (1988-06-01), Bierschenk
patent: 5093432 (1992-03-01), Bierschenk
Adcock et al., J. Am. Chem. Soc., 103, 6937 (1981).

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