1859. TSUNEOKA, S., AND MURATA, Y. Benzine Synthesis From Carbon Monoxide and Hydrogen at Ordinary Pressure. XXIII. The Extraction and Leaching Treatment of Alloy Catalysts. Jour. Soc. Chem. Ind. (Japan), vol. 38, suppl., 1935, pp. 199-206; Sci. Papers Inst. Phys. Chem. Research (Tokyo), vol. 27, 1935, pp. 13-22; Chem. Abs., vol. 29, 1935, p. 4551.

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Literature Abstracts

Experiments were carried out on the methods of preparation of Ni-Co-Si (1:1:2) catalyst to improve the activity of alloy catalysts. The extraction of Si from the alloy is an essential operation and the most favorable procedure consists in boiling 24 hr. with the theoretical amount of NaOH. Any residual alkali in the extracted catalyst exerts a detrimental influence upon its activity, and as complete a removal of alkali as possible is indicated. The residual alkali increases the power of CH₄ formation of the catalyst. The experiments with the Ni-Co-Si catalyst did not show any relation between the gas contraction and the benzine yield. The activity of the benzine catalyst becomes greater as the most favorable reaction temperature is lowered. With 25 gm. of Ni-Co alloy catalyst a maximum benzine yield of 120 cc. per m.³ was obtained in a single-pass operation with an initial gas composition of 33.5% CO, 65.6% H₂ and 0.9% N₂. Increase in quantity of catalyst resulted in a less volatile and more saturated benzine.