2775.     RAPOPORT, I. B., AND POLOZHINTSEVA, E.  [Synthesis of Hydrocarbons From Carbon Oxide and Hydrogen Over Alloyed Catalysts.  II.]  Khim. Tverdogo Topliva, vol. 9, 1938, pp. 64-70; Foreign Petrol. Technol., vol. 6, 1938, pp. 215-246, 293-304; Oil Gas Jour., vol. 38, No. 20, 1939, pp. 52-54; Chem. Abs., vol. 32, 1938, p. 9446.

        Gas mixture, an average composition CO, 31.7; H₂, 63.08; CO₂, 0.05; O₂, 0.2; and N₂, 4.97%, after purification and drying was passed into a quartz tube filled with a catalyst, then into a graduated receiver cooled with ice, on to a charcoal scrubber, and then into a gasometer.  A portion of the gas was withdrawn for the analysis.  The quartz tube was kept at 165°-220°.  Ni-Al, Co-Al, and Co-Si catalysts were used in the powdered and granular forms.  The Ni-Al catalyst reduced in the H₂ atmosphere at 350° yielded 140 cc. per m.³ (of gas) of hydrocarbon under the optimal conditions:  vol. velocity 166 at 170°.  The Co-Al catalyst, reduced with H₂ in the NH₃ atm. at 220°, yielded 175 cc. per m.³ (of gas) hydrocarbon at 200° and vol. velocity of 83.  The Co-Si catalyst, reduced as the Co-Al catalyst, yielded 109.6 cc. per m.³ (of gas) hydrocarbon at 220° and vol. velocity of 59.  All the above data are given for the catalysts in the granular form; the yield of hydrocarbon using powdered catalysts was somewhat lower.