627. ETIENNE, A., AND DU CHAFFAUT. R. (E. I. du Pont de Nemours & Co.). Carrying Out Exothermic Catalytic Chemical Reactions. United States Patent 1,962,301. June 12, 1934: appl. filed Apr. 26, 1928. British Chem. Abs., 1935, B. p. 385

Patent Abstracts

In the operation of an exothermic reaction in a catalyst that is cooled by ingoing gases, greater latitude of control is attained by dividing the catalyst into portions of unequal size and the gases into corresponding streams in parallel and in adjustable proportion during the preliminary heat-exchange pass.

EVERETT, E. F. See abs. 488.