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Literature Abstracts

 1659.    KAMZOLKIN, V. P., AND LIVSHITZ, V. D.  [New Method for Obtaining Ammonia Catalysts From Natural Ural Magnetite.]  Jour. Chem. Ind. (U.S.S.R.), vol. 13, 1936, pp. 398-401; Chem. Abs., vol. 30, 1936, p. 4630.

       Ore is fused with Al₂O₃ and excess KNO³, ground, and separated magnetically.  Enough Fe is added to form Fe₃O₄, and the mixture is fused and separated as before.  This treatment reduces the amount of SiO₂ to 0.5%.