2913.     RUBANIK, M. Y., ZABLOTSKIĬ, T. V., AND RUSOV, M. T.  [Iron-Molybdenum Catalysts for the Synthesis of Ammonia.]  Jour. chem. Ind. (U.S.S.R.), vol. 14, 1937, pp. 484-485; Ber. Inst. physik. Chem., Akad. Wiss. Ukr. S.S.R., vol. 6, 1936, pp. 77-82; Chem. Abs., vol. 31, 1937, p. 5519.

        Fe-Mo-Al₂O₃ catalysts are less active than Fe-Al₂O₃ ones.  Addition of Al₂O₃ to Fe-Mo catalyst causes them to retain their activity longer.