3810. ----- [VEREINIGTE OELFABRIKEN HUBBE & FARENHOLTZ] [Process for Obtaining Oxidation Products From High-Molecular Hydrocarbons.] German Patent Appl. V 34,745, PA 249, 646; filed Apr. 4, 1938 (Cl. IV d-12 o). FIAT Reel B-196, frames 156-172; PB 83,253.’

An improvement is given for the process for obtaining oxidation products, such as fatty acids, alcohols, or the like, from high-molecular hydrocarbons, such as the paraffin gatsch, from the Fischer-Tropsch synthesis in the presence of catalysts, at temperatures 80°-130°. To obtain the maximum amount of homogeneous oxidation products from the raw material, the troublesome cyclic, heterocyclic, and pseudocyclic compounds, such as naphthenes and terpenes, asphalts and resins, the S-containing compounds, and other troublesome impurities are removed before the oxidation is performed. Their removal may be accomplished by means of 85-95% H₂SO₄ at 60°-90°, followed by washing with H₂O or alkalies to remove the residual acid, by adsorption on bleaching earths or the like, or by treatment with solvents, such as ether, methyl alcohol, acetone, chloroform, or mixtures of these with ethyl alcohol. To obtain fatty acids suitable for soaps or for technical and edible fats and to increase the homogeneity of the oxidation products, those portions of the raw material b. < 310°-320° are distilled off, and/or the raw materials are subjected to distillation at a temperature up to 500°.