PATENT

3611. ----- [STEINKOHLEN-BERGWERK “RHEINPREUSSEN”].  [Separation of Light Hydrocarbons From the Reaction Gases of Carbon Monoxide Hydrogenation.].  French Patent 51,588, Feb. 5, 1943; appl. filed May 26, 1941, in Germany Aug. 7, 1940.  Chem. Zentralb., 1943, II p. 1692.

Process of the main patent is improved by first washing with an oil boiling about 260°-290° to remove the resinous impurities and then at room temperature with pure paraffin hydrocarbons from the hydrogenation of CO to remover the hydrocarbons.

See also French Patent 872,238 (abs. 3608).