2426.     NEGISHI, R., NIBAYASHI, M., AND KAMIIKE, O.  Hydrocarbons From Carbide; Noncatalytic Polymerization Under Elevated Pressure. II.  Hydrogen-Carbide and Water Gas-Carbide Systems.  Jour. Soc. Chem. Ind. (Japan), vol. 45, 1942, suppl. binding, pp. 215-216 (in English); Chem. Abs., vol. 45, 1951, p. 535.

        Yield of liquid product in the CaC₂-H₂-Al(OH)₃ system increases with increasing total pressure up to 100 kg./sq. cm. and then decreases.  The amount of saturated gases increases with the total pressure.  Decreasing the temperature increases the ratio of unsaturated to saturated compounds.  Water gas in place of H₂ gives about the same yields of liquid products, and pressure has the same effect.  The yield of saturated gases depends on the partial pressure of H₂.  CO₂ in place of H₂ increases the yield of liquid product.  The mechanism is discussed.