PATENT

3663. ----- [STUDIEN-UND VERWERTUNGS-G. M. B. H.]  [Catalytic Gas Reactions.]  French Patent 784,885, July 27, 1935.  Chem. Abs., vol. 30, 1936, p. 584.

Catalytic mass is divided into thin layers of uniform thickness, and the reaction takes place in spaces formed by the exterior walls of the chambers containing a circulating liquid used to control the temperature.