2849. ----- [RUHRCHEMIE, A. G.] [Antiknock Motor Fuel.] French Patent 800,735, July 17, 1936. Chem. Zentralb., 1937, I, p. 260; Chem. Abs., vol. 31, 1937, p. 250.

Hydrocarbons rich in H resulting from the hydrogenation of CO with bituminous products poor in H such as tars and mineral oils, are subjected to a transformation by heat treatment.