Patent ID: 8633336

Claim:
A process for separating a carboxylic acid of formula (I), from an aqueous medium, comprising: contacting a carboxylic acid of formula (I) in salified form with an onium salt to form two phases: (i) an organic phase comprising a carboxylic acid anion of said carboxylic acid in salified form and a cation of the onium salt, and (ii) an aqueous phase comprising a cation of said carboxylic acid in salified form and an anion of the onium salt, separating the organic phase and the aqueous phase, and recovering the carboxylic acid from the organic phase, wherein said process is carried in the absence of any organic solvent, and in said formula (I): n is a number ranging from 0 to 10: if n is equal to 0, then R represents an R 1 R 2 CF group wherein R 1 and R 2 independently represent a hydrogen, fluorine, chlorine, or bromine atom; if n is not 0, then R represents a hydrogen, fluorine, chlorine, or bromine atom or a carboxylate function.