PATENTS

2643. PICCONI, C. [Appliance for Catalytic Reactions.] German Patent Appl. , filed Nov. 13, 1940; APC 365,412.

Apparatus for NH3 and MeOH synthesis has a catalyst zone surrounded by a nest of tubes serving as the heat exchanger of the recuperator. These tubes are provided with electric resistors to raise the preheated reacting gases to the optimum temperature. The heat exchanger tubes may be arranged in 1 or more layers around the catalytic zone and may be straight or coiled.

PICHLER, H. See abs. 672, 673, 674, 675, 676, 677, 678, 679, 680, 681, 682, 683, 684, 685, 686, 687, 688, 689, 690, 691, 710, 711, 712.