3177. OGAWA, T., KIMUMAKI, J., AND FUJISAKI, T. [Iron Catalyst for Synthetic Petroleum. II. Some Characteristic Properties of Iron Catalyst for Synthetic Petroleum.] Jour. Soc. Chem. Ind. (Japan), vol. 47, 1944, pp. 242-243; Chem. Abs., vol. 42, 1948,

3177. OGAWA, T., KIMUMAKI, J., AND FUJISAKI, T. [Iron Catalyst for Synthetic Petroleum. II. Some Characteristic Properties of Iron Catalyst for Synthetic Petroleum.] Jour. Soc. Chem. Ind. (Japan), vol. 47, 1944, pp. 242-243; Chem. Abs., vol. 42, 1948, p. 7011.

Activity of the ordinary Fe catalyst, which does not contain excess alkali, increases with time, passes through a maximum, and then decreases. The maximum is affected strongly by the reaction temperature. The higher the reaction temperature or activation temperature, the earlier the appearance of the maximum. Thus, it is possible to decrease the time of activation and increase the yield.