2017.     KUROKAWA, M., AND TAKENAKA, Y.  [Thermal Effect on the Catalyst of the Water-Gas Reaction.]  Jour. Soc. Chem. Ind. (Japan), vol. 40, 1937, B, p. 347; Chem. Abs., vol. 32, 1938, 1554.

        Fe₂O₃ catalyst generally used for the conversion of CO and H₂O to H₂ and CO₂ is impaired by the heat of the exothermic reaction.  The conversion at 450° was measured with promoted Fe₂O₃ catalysts before and after heating to 850°.  The resistance of the catalyst to heat was greatly improved by additions of Cr₂O₃ and MgO.  The optimum ratio Fe₂O₃ : Cr₂O₃ : MgO was 1:01:0.03.  The catalyst obtained by precipitation with KOH was better than that with NH₃.