2565.     ---------------.  [PARDUN, H.]  [Distribution of Fatty Acids Formed by the Oxidation of Paraffins in the Fischer-Tropsch Process.]  Fette u. Seifen, vol. 52, 1950, pp. 290-295; Chem. Abs., vol. 44, 1950, p. 10352.

                    Influence of the degree of oxidation on the distribution of the fatty acids formed in the Fischer-Tropsch process was investigated by oxidizing samples of a paraffin fraction b.₁₃ 168°-233° at temperatures of 110°, 120°, 130°, and 140° so as to yield products of acid numbers 10, 20, 40, and 80.  The fatty acids were isolated as the Me esters, fractionated, hydrolyzed and analyzed.  The distribution of the fatty acids formed a maximum in all cases.  With decrease in degree of oxidation this maximum migrates toward fatty acids of high molecular weight.  It is probable that the primary reaction takes place at the end of the paraffin chain, and that the higher-molecular compounds formed first are split further on continuing oxidation.