Purification of fluorinated carboxylic acids

Details Purification of fluorinated carboxylic acids Purification of fluorinated carboxylic acids

1993-04-21

1994-05-17

McCarthy, Neil M.

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

Organic compounds

Fatty compounds having an acid moiety which contains the...

554181, 554183, 562605, 210758, 210759, 203 15, C02F 172, C07C 5321

Patent

active

053129350

ABSTRACT:
Fluorinated carboxylic acids which do not have the required purity for use as emulsifier in the polymerization of fluorinated monomers can, if necessary after prior de-watering, be treated with oxidants, whereupon the isolation of the pure product is carried out by crystallisation or, preferably, by distillation.

REFERENCES:
patent: 3709795 (1973-01-01), Singleton
patent: 3833626 (1974-09-01), Ferse et al.
patent: 4609497 (1986-09-01), Cope
patent: 4751027 (1988-06-01), von Werner et al.

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