New process for the fluorination in liquidphase of unsaturated compounds

Claim 1

Process for the fluorination with elemental ffuorine of perfluorinated olefins containing from 4 to 12 carbon atoms, linear, cyclic or branched, with the condition that the branching is not on adjacent atoms, or of perfluoro-vinyl ethers having the general formula wherein R f is a perfluorinated radical of from 1 to 3 carbon atoms, and is an integer ranging from 0 to 2, and when R f = CF,, z is at least equal to 1, with chains containing from 4 to 12 carbon atoms, wherein one or more carbon atoms can be replaced by oxygen atoms, the fluorination being carried out in liquid phase comprising as the reaction solvent a low-volatility perfluoroether, having molecular weight not lower than 450, the reaction being carried out at a temperature comprised within the range of from 25°C to +120°C, in the presence of activating radiations comprised within the visible spectrum on in U.V. range, having wavelength comprised within 2200 A and 8000 Å, and with the use of gaseous mixtures of fluorine and inert gas, containing from 10% to 80% by volume of fluorine.