3168.----- [RUHRCHEMIE, A. G.] [Refining Low-Boiling Hydrocarbon Oils.] Italian Patent 374,759, June 28, 1939. Chem. Zentralb., 1940, II, p. 1536.

Low-boiling hydrocarbon oils are treated at about 150°-400° with acid activated bleaching earth to which has been added AlCl₃, AnCl₂, BCl₃F4eCl₃, or H₃PO₄. There is attained both a removal of the resinous constituents and an increase in the octane number. The method is very suitable for treating the cracked gasoline obtained as a product of hydrocarbon synthesis.