1628. ------. [IMPERIAL CHEMICAL INDUSTRIES, LTD.] [Chemical Reactions.] French Patent 783,732, July 18, 1935. Chem. Abs., vol. 29. 1935. p. 8175.

In carrying out reactions with circulating gases, such as in the synthesis of NH₃, a part of 1 or more of the constituents is removed by causing the gases of a part of them to pass rapidly in the same direction as an appropriate liquid absorbent. The absorption may take place in a long tube or worm under high pressure.