2501. NASH, A. W., BOWEN, A. R., AND ELVINS, O. C. Olefins From Carbon Monoxide and Hydrogen. British Patent 291,867, Mar. 9, 1927. Chem. Abs., vol. 23, 1929, p. 1136.

Mixture of H₂ with an excess of CO is passed at atmospheric pressure and at a temperature of 280°-300° over a catalyst comprising a mixture of the reduced oxides of Co, Cu, and Mn. Gives various details.

NATIONAL COKE & OIL CO., LTD. See abs. 3659.

NATIONAL INDUSTRIEL DE L’AZOTE. See abs. 206.