1044.    FISCHER, F., TROPSCH, H., AND MOHR, W.  [Reduction of Carbon Monoxide to Methane in the Presence of Iron at Ordinary Pressure.]  Brennstoff-Chem., vol. 4, 1923, p. 197; Ges. Abhandl. Kenntnis Kohle, vol. 8, 1929, pp. 473-474; Chem. Abs., vol. 18, 1924, p. 349.

       Reduction of CO to CH₄ by means of Fe as a contact substance takes place in small amount at 400° and 2 atm.  This investigation was made to discover whether this reduction would take place at atmospheric pressure and at 400°-550°.  The amount of CH₄ formed was in all cases less than 1.0%.