PATENTS

1739. IVANNIKOV, P. Y., AND TELEGIN, V. G. [Catalyst for Synthesis of Ammonia.] Russian Patent 52,907, Mar. 31, 1938. Chem. Abs., vol. 34, 1940, p. 5608.

Mixture of Fe hydroxide and activator is pressed at normal temperature under 3,000 kg. per cm.3 and then reduced.