Process for the preparation of saturated long-chain dicarboxylic acids
AssigneeRhone-Poulenc-Textile
InventorsLucien Billet, Guy Lartigau
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Abstract
A process for preparing long-chain alkanedicarboxylic acids is described, starting from cycloalkanone peroxide, by double deperoxidation by means of ferrous ions in the presence of hydrogen and a hydrogenation catalyst.
Claims26
In a process for the preparation of a linear or branched alkane-dicarboxylic acid possessing at least 8 chain carbon atoms separating the two hydroxycarbonyl groups, which comprises subjecting a cycloalkanone peroxide to double deperoxidation, by means of ferrous ions, the improvement wherein the double deperoxidation by means of ferrous ions is carried out in the presence of hydrogen and a metal hydrogenation catalyst selected from the group consisting of platinum, palladium and nickel.
Dependencies are inferred from the claim text.