512. ---------------. [CHEMICAL AND METALLURGICAL ENGINEERING.] Synthesis of Liquid Hydrocarbons. Vol. 41, 1934, p. 215. It is possible with highly active Co or Ni catalysts, which reach maximum capacity at 200° C., to treat a gas CO:H2 :: 1:2 with almost complete conversion of CO in 1 pass, with up to 70% liquid hydrocarbons. Fischer has lately succeeded in replacing the precipitation catalyst formerly used with skeletons of alloys, which take up only 1/10 of the volume occupied by the precipitated catalysts with almost the same capacity. Ni-Al alloy, as well as Ni-Si, Co-Si, and Ni-Co-Si were used, from which the Al and Si were dissolved by caustic potash leaving a skeleton of the heavier metals. Ni:Co:Si::1:1:2 proved most effective. Almost 100 cm.3 liquid hydrocarbons was produced from 1 m.3 of gas mixture in 1 pass. |