Process for the neutralization of perfluoropolyoxyalkylenes

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

1992-12-22

1994-06-07

Mars, Howard T.

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

Organic compounds

Oxygen containing

568603, 568604, 568615, C07C 4148, C07C 4101

Patent

active

053191471

ABSTRACT:
Perfluoropolyoxyalkylenes containing acid and/or ketonic groups are neutralized by reacting same in the liquid phase with elemental fluorine at temperatures of from -20.degree. to +150.degree. 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.

REFERENCES:
patent: 3665041 (1972-05-01), Sianesi et al.
patent: 3985810 (1976-10-01), von Halasz et al.
patent: 4523039 (1985-06-01), Lagow et al.
patent: 4664766 (1987-05-01), Marchionni et al.
patent: 4755330 (1988-07-01), Viola et al.
patent: 4847427 (1989-07-01), Nappa
Cotton et al, Advanced Inorganic Chemistry, 2nd Revised Ed. Interscience Publishers, New York, 1966, p. 385.

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