1888. MURATA, Y., AND MAKINO, S. Benzine Synthesis From Carbon Monoxide and Hydrogen. LII. Influence of the Initial Materials, Carriers and Filling Agents Upon the Iron Catalyst. Jour. Soc. Chem. Ind. (Japan), vol. 43, suppl., 1940, pp. 210-215; Sci. Papers Inst. Phys. Chem. Research (Tokyo), vol. 37, 1940, pp. 338-349; Chem. Zentralb., 1941, I, p. 849; Brennstoff-Chem., vol. 24, 1943, p. 9; Chem. Abs., vol. 34, 1940, p. 6796.

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Literature Abstracts

In the benzine synthesis at 257° from gas containing approximately equal proportions of H₂ and CO, with catalyst having the composition Fe+25% Cu+125% kieselguhr+2% K₂CO₃, best results were obtained with the catalyst precipitated from the nitrate solution (by K₂CO₃ solution), inferior results with that from chloride solution, and no reaction at all where precipitation was made from sulfate solution. The best carrier for the catalyst Fe+25% Cu+2% Mn+2% KOH (Na₂CO₃ precipitation agent) was 125 wt. % of kieselguhr (based on Fe present), Mn being somewhat inferior and A-carbon giving no yield of benzine. When used with Fe+25% Cu+125% kieselguhr+2% KOH (K₂CO₃ precipitation agent) and pumice, sodalime, Mn, CaO and BaO were all good filling agents. With Fe+25% Cu+125% kieselguhr (K₂CO₃ precipitation agent) the following catalyst addition agents (2% based on Fe present) are arranged in the order of decreasing effect on the catalyst; Rb₂CO₃ (additional 2% Mn)>KOH >KNO₃ >Rb₂CO₃ >KMnO₄ >K₂CO₃ >Na₂CO₃ >KCl, the benzine yield being much lower when KCl was present than when either of the other catalyst addition agents was present. Optimum quantities of K₂CO₃, KOH, Rb₂CO₃ and KMnO₄ for use as catalyst addition agents (with respect to quantity of Fe present) were 2%, 2%, 2-3% and 2-5% respectively. The use of Fe+25% Cu+2% Mn+125% kieselguhr +2% Rb₂CO₃ catalyst at 257° resulted in a benzine yield of 90 cc. per m.³