PATENTS

2799. ----- [ROELEN, O.]   (Hydrocarbon Synthesis Corp.).  Paraffin From Hydrogen and Carbon Oxides.  United States Patent 2,225,487, Dec. 17, 1940; appl. filed July 3, 1937, Serial No. 151,835; in Germany, July 3, 1936; 5 claims (Cl. 260-449).  Chem. Abs., vol. 35, 1941, p. 2304.

        Describes arrangement of apparatus and a method for the production of paraffin by acting on a C oxide in the presence of a catalyst that is suitable for forming hydrocarbons, with gases containing free H2, that are practically free from other reactants, at an elevated temperature below that at which CH4 would normally be exclusively formed with the use of the same gases and same catalyst, involving periodically removing from the catalyst by extraction with a solvent for paraffin the nonvolatile reaction products, that have settled on the catalyst, at a temperature not materially above the reaction temperature, each time before the proportion of paraffin formed is appreciably diminished in comparison with the other products simultaneously formed.