PATENT

3416. ----- [SOCIÉTÉ L’AIR LIQUIDE.]  Ammonia Synthesis.  British Patent 305,534, Feb. 6, 1928.  Chem. Abs., vol. 23, 1929, p. 4781.

A catalytic system, as described in British Patent 268,721 ((abs. 3428), is modified by heating the gas after passage through the jacket of the apparatus and before entry to the reaction chamber.