2016.     ---------------.  [KURIN, N. P.]  [Investigations of the Activities of Ammonia Catalysts Reduced by Pure Hydrogen.]  Nauch. Tekh. Konferentsiya v Svyazi s Sorokaletnim Yubileem Uchebno-Nauch.  Deyatel-nosti Tomsk. Ind. Inst., Tezisy Dokladov, 1940, pp. 112-113; Khim. Referat. Zuhr., vol. 4, No. 4, 1941, p. 88; Chem. Abs., vol. 37, 1943, p. 5560.

        Remelted NH₃ catalyst containing Fe₃O₄, Al₂O₃, and K₂O was used for investigating the reduction process and the activity of the catalyst by the dynamic method at atmospheric pressures, at various temperatures, and various volume velocities.  At constant volume velocities, the reduction velocity of the catalyst by H₂ increased with the increase in temperature.  The use of H₂ for the reduction (instead of the H₂+N₂ mixture) increased the activity of the catalyst.  The optimum conditions for the reduction were obtained at large volume velocities and at temperatures equal to approximately 450°.

        KURODA, R.  See abs. 1870, 1871.