Process for the neutralization of perfluoropolyoxyalkylenes

Details Process for the neutralization of perfluoropolyoxyalkylenes Process for the neutralization of perfluoropolyoxyalkylenes

C - Chemistry, Metallurgy

07

C

C07C 43/313 (2006.01) B01J 27/12 (2006.01) C07C 41/18 (2006.01) C07C 41/48 (2006.01) C07C 43/12 (2006.01) C08G 65/00 (2006.01) C08G 65/30 (2006.01) C08G 65/323 (2006.01)

Patent

CA 2086219

Perfluoropolyoxyalkylenes containing acid and/or ketonic groups are neutralized by reacting same in the liquid phase with elemental fluorine at temperatures of from -20° to +150°C in the presence of a supported catalyst consisting of fluorides of Ag, Pb, Co, Ni, Cu, Mn, V, Cr,or Fe. In a preferred embodiment, a mixture of fluorides of the above mentioned metals and of fluorides, or fluoride precursors, of an alkali and/or alkaline-earth metal is used as catalyst, optionally supported on a suitable carrier.

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