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Patent Abstracts

      702.  ------.  [FISCHER, F., AND TROPSCH, H.]  [Hydrocarbons From Hydrogen and Oxides of Carbon.]  German Patent 524,468, May 7, 1931; Appl. F 62,373 filed Nov. 2, 1926 (Cl. O-1); FIAT Reel AA-89, frames435-436; PB 70,274; Chem. Abs., vol. 25, 1931, p. 3664.

The method of German Patent 484,337 (abs. 699) is improved by lowering the reaction temperature; for example to 240º, whereby the life of the catalyst is prolonged, and completely colorless products are obtained.  The reaction my be effected under pressures up to 10 atm.  Gives examples.