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Return to Abstracts of Literature 1500-1749

Literature Abstracts

 1695.    KAWAI, S.  Manufacture of Fatty Acids by the Oxidation of Paraffin.  XXII.  Thermal Decomposition of Oxidation Products and Crude Fatty Acids.  Jour. Soc. Chem. Ind. (Japan), vol. 46, 1943, pp. 1058-1062; Chem. Abs., vol. 43, 1949, p. 9030.

        Three oxidation products of shale-oil paraffin of different degrees of oxidation and the 3 crude mixtures of fatty acids obtained from them were, respectively, heated in a retort with or without the addition of acid clay, etc., and the properties of the distilled oils were examined and compared.  The highly oxidized product and the crude fatty acids obtained therefrom yielded a smaller amount of distilled oil than the other products.  The amount of acid clay added had a great effect on the yield and properties of the distilled oil.  With increasing amounts of acid clay, the specific gravity of the distilled oil diminished, and the yield decreased.  An increase in I value and a decrease in OH value were also noticed.  The yield of olefinic material was greatest when the medium-oxidized product, that is, paraffin oxidized 20 hours at 120-130, was slowly heated with the addition of 10% acid clay.