2032.     ---------------.  [LACHINOV, S. S.]  [Conference on Heterogeneous Catalysis.  Moscow, May 13-16, 1940.  Analysis of the Process of Reduction of Ammonia Catalysts.]  Jour. Phys. Chem. (U.S.S.R.), vol. 14, 1940, pp. 1260-1270; Chem. Abs., vol. 35, 1941, p. 3882.

        Various data on the reduction of Fe₂O₃, Fe₃O₄ with 2-5% K₂O and Al₂O₃ at temperatures up to 500° and pressures up to 300 atm. are discussed.  The reduction of an activated catalyst proceeds 5-6 times as fast; the activators aid in the formation and stabilization of the active centers.  The reduction takes place in an induction, an autocatalytic and a residual-reduction period.