VERFAHREN ZUR HERSTELLUNG VON ALKYLCARBONSAEUREN

摘要

Alkylcarboxylic acids CnH2n+1COOH (I) where n is from 2 to 18 are manufactured by hydroformylation of olefins CnH2n with carbon monoxide and hydrogen in the presence of rhodium catalysts at from 80 to 200.degree.C and from 80 to 600 bars, followed by oxidation of the aldehydes, first obtained, with oxygen or oxygen-containing gases, using a method wherein the reaction mixture resulting from the hydroformylation is directly subjected to the oxidative treatment, the carboxylic acids are distilled from the mixture thus obtained and the lowvolatility distillation residue, containing rhodium, is recycled, without additional treatment, to the hydroformylation stage.