Production of perfluoroalkanes

Details Production of perfluoroalkanes Production of perfluoroalkanes

1994-03-30

1995-07-18

Siegel, Alan

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

Organic compounds

Halogen containing

C07C 1908

Patent

active

054343194

ABSTRACT:
A method for stabilizing and/or purifying perfluoroalkanes, particularly from perfluoroalkanes which contain polyfluoroalkane by-products from their production process, in which the perfluoroalkanes are stabilized and/or purified by reacting the polyfluoroalkane(s) with fluorine at elevated pressure and temperature, to obtain perfluoroalkanes which are substantially free of polyfluoroalkanes. The method has the advantage that the perfluorination takes place rapidly and without significant formation of by-products or decomposition products.

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patent: 3686082 (1972-08-01), Ruehlen
patent: 4929317 (1990-05-01), Nishimura et al.
Haszeldine et al., J. Chem. Soc., 1950:2689-94.
Kirk-Othmer, "Encyclopedia of chemical Technology", vol. 10, pp. 840-845, John Wiley & Sons, New York, (1980).

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