3314.     TAHARA, H., SAWADA, Y., AND KOMIYAMA, D.  [Catalytic Reaction of Carbon Monoxide and Hydrogen Under High Pressure.  II.  The Influence of High Pressure on the Iron Catalyst Employed in the Synthesis of Benzine.]  Sci. Papers Inst. Phys. Chem. Research (Tokyo), vol. 38, 1941, pp. 184-195 (in German); Jour. Soc. Chem. Ind. (Japan), vol. 44, 1941, suppl., pp. 77-82; Chem. Zentralb., 1941, I, p. 2891, Chem. Abs., vol. 35, 1941, p. 3416.

        Brief review of some of the earlier work.  The same experimental methods were used as on the previous low-pressure investigation.  The reaction was studied at 10, 50, and 100 kg. per cm.²  The high-pressures used with the Fe catalyst (composition: Fe+25% Cu+2% Mn+125% kieselguhr+15% H₃BO₃+2.8% K₂CO₃) formed considerable H₂O, which did not form in the low-pressure studies.  At 10 kg. per cm.², the yield of benzine was greater than at atmospheric pressure, and the yield did not fall even when the stream volicity was doubled.  The activity of the catalyst declined under this pressure even more rapidly than under atmospheric pressure.  At pressures of 50 and 100 kg. per cm.², the yield of benzine fell very sharply, and a marked increase in the formation of CH₄ occurred.