| abstract |
FIELD: chemistry. ^ SUBSTANCE: invention relates to a carboxylic acid synthesis method. The invention specifically relates to a method for synthesis of carboxylic acids through oxidation of a hydrocarbon with oxygen or an oxygen-containing gas, and more specifically to oxidation of cyclohexane to adipinic acid. According to the invention, the method involves a step for oxidising the hydrocarbon and at least one step for extracting the formed dicarboxylic acids from the reaction medium and, in known cases, return unconverted hydrocarbon and oxidation by-products such as ketones and alcohols which may be formed to the reaction. The disclosed method also includes a step for conversion, separation or extraction of ,ë-hydroxycarboxylic compounds formed during oxidation. This step for conversion, separation or extraction of ,ë-hydroxycarboxylic compounds involves oxidation of medium containing the said compounds in order to convert them to dibasic acids. ^ EFFECT: design of an efficient method of obtaining carboxylic acids. ^ 16 cl, 10 ex |