Process for preparing fluorocarboxylic acids

Details Process for preparing fluorocarboxylic acids Process for preparing fluorocarboxylic acids

2006-10-24

2006-10-24

Carr, Deborah D. (Department: 1621)

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

Organic compounds

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

C554S156000

Reexamination Certificate

active

07126016

ABSTRACT:
A fluorocarboxylic acid preparation process continuously carries out acidification reaction treatment and washing treatment, and includes subjecting a fluorocarboxylate-containing aqueous solution to acidification reaction treatment in the presence of sulfuric acid so as to form a sulfate-containing fluorocarboxylic acid phase; and subjecting the fluorocarboxylic acid phase to washing treatment using an aqueous sulfuric acid solution.

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patent: WO 02/16302 (2002-02-01), None
patent: WO 2004/029008 (2004-04-01), None
Supplementary European Search Report dated May 23, 2006 for EP 03799283.1.
International Search Report dated May 11, 2004 for PCT/US2003/026306.
International Search Report dated Jul. 2, 2004 for PCT/US2003/028548.

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