<p>The invention concerns a method for making carboxylic acids. More particularly, it concerns a method for making carboxylic acids by oxidizing hydrocarbon with oxygen or an oxygen-containing gas, and still more particularly oxidation of cyclohexane into adipic acid. The invention concerns a method for making dicarboxylic acids by oxidizing with oxygen or an oxygen-containing gas a cycloaliphatic hydrocarbon in the presence of an oxidation catalyst and a lipophilic monocarboxylic oxidation solvent comprising a step of extracting the dicarboxylic acids formed during the oxidizing step which consists in performing, in liquid phase, an extraction of diacids using water.</p>
