831. GOUDET, A. [Conversion of Methane Into a Petroleumlike Liquid.] French Patent 31,758, Dec. 9, 1925. British Chem. Abs., B. 1928. p. 844.

Patent Abstracts

Fission of CH₄ into olefins and H₂ is facilitated by passing the gas at the higher temperatures over a layer of CaF₂ to which may be added sulfides, selenides, or tellurides.

See also French Patent 613,146 (abs. 832) and British Patent 255,493 (abs. 3446).