PATENTS

      166.     ------.  [BEDFORD, F., AND WILLIAMS, C. E.]  (Cedford Gas Process Co.).  Catalytic Synthesis of Methane.  United States Patent 989,755, Apr. 18, 1911.  Chem. Abs., vol. 5, 1911, p. 3283.

Catalytic synthesis of CH₄ from a commercial gas containing H₂ and CO-for example, Mond or Duff gas-by cooling, after removal of CO₂, to separate out in the solid form at -190° impurities having little or no vapor tension: separating the purified gas into its constituents, such as by absorption of CO by Cu₂C_l2 and subsequent heating to recover the CO: and mixing the CO thus obtained with H₂ in the required quantity and passing the mixture into contact with a heated catalyst such as Ni.

BEECK, O. A.  See abs. 3355.