1561. ------. [I. G. FARBENINDUSTRIE, A. G.] [Separation of Hydrocarbons.] German Patent 715,323. Dec. 19, 1941; appl. filed Sept. 23, 1939. Chem. Zentralb., 1942 I. p. 1826.

Liquid SO₂ is used for separating mixtures of hydrocarbons obtained when high-boiling saturated hydrocarbons containing paraffins are treated with SO₂ and halogen.