PATENTS

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.