PATENT

3548. ----- [STANDARD OIL CO.]  Separation of hydrocarbons and Oxygenated Compounds From Mixtures.  British Patent 664,525, 1952.  Fuel Abs., vol. 11, No. 4, abs. 3123; Chem. Abs., vol. 46, 1952, p. 5295.

Process for separation of olefins from the mixture of hydrocarbons and oxygenated organic compounds produced in the Fischer-Tropsch synthesis process comprising treating the mixture with a solvent that can remove the oxygenated organic compounds selectively to form an extract phase containing the oxygenated organic compounds and a raffinate phase, separating this raffinate phase, and treating it with a solvent or adsorbent that will remove selectively the aromatic hydrocarbons, condensed ring hydrocarbons, and conjugated hydrocarbons to leave a 2d raffinate phase from which olefins suitable for polymerization to produce lubricating oil stocks may be separated.