556.    CHIWALA, A.  [Formation of Mineral Oil by Chemical Interaction of Mineral Oil Hydrocarbons and the Synthetic Production of Derivatives.]  Oesterr.  Chem.-Ztg., vol. 48, 1947, pp. 2-6; British Abs., 1949, B. I. p. 238.

                 Review of interconversion of hydrocarbons by cracking and condensation, the formation of derivatives from hydrocarbons by oxidation, chlorination, sulfochlorination and nitration, and the reaction of olefus with compounds containing hydroxyl, with HOCl, CO, and H₂ (catalytically), and with formaldehyde.  The importance of these processes in the Austrian oil industry is considered.