PATENTS

1856.  KING, C. C. (M. W. Kellogg Co.). Separation of Organic Compounds. United States Patent 2,472,837, June 14, 1949; appl. filed Feb. 27, 1947, Serial No. 731,267; 16 claims (Cl. 260-450). Chem. Abs., vol. 43, 1949, p. 6643.

Describes process and apparatus for recovering Fischer-Tropsch synthesis products. The normally liquid products are condensed to form an oil product liquid phase and gases containing oxygenated organic compounds and hydrocarbons. The oil products are separated and the gases are subjected to solvent extraction. The extract is fractionated. The fraction containing solvent and oxygenated organic compounds with boiling points above the boiling point of the solvent is separated and the solvent recycled. 1 foreign and 4 United States patents cited.