PATENTS

      1624.  ------.  [IMPERIAL CHEMICAL INDUSTRIES, LTD.]  [Apparatus for Carrying Out Catalytic Exothermic Reactions Under Pressure.]  German Patent 482,925. Apr. 13, 1926.  Chem. Abs., vol. 24, 1930. p. 532.

            Apparatus is primarily intended for NH2 synthesis and consists of a catalytic chamber for the gases, surrounded by heating tubes embedded in nonconducting material, and the whole enclosed in pressure-resisting walls.