3467.     ---------------.  [TSUNEOKA, S., AND FUNASAKA, W.]  Purification of the Gaseous Raw Material Used for Benzine Synthesis.  II.  Removal of Organic Sulfur Compounds at High Temperature.  Jour. Soc. Chem. Ind. (Japan), vol. 41, B, 1938, pp. 47-51; Sci. Papers Inst. Phys. Chem. Research (Tokyo), vol. 34, 1938, pp. 310-320 (in German); Chem. Abs., vol. 32, 1938, p. 3577.

        The same city gas was used for S removal at high temperature by passing the gas through heated pipes without and in the presence of catalysts.  Fe, Cu, and V2A steel pipes were used.  At 500°, Fe pipe gave the best results but desulfuration is only 77%.  Ag catalysts, 1% Ag by weight, CuO-CrO₄-Pb, Ni, Fe-Cu, Ag catalysts, 10% metal, and active C were used in an effort to eliminate the organic S by transforming it into H₂S, by contact.  With CuO-CrO₄-Pb, Ni, Fe-Cu catalysts, 10% metal, at temperatures 450°, 350°, 300°, 330 cc. per hr. per cc. contact (Ges. Abhandl. Kenntnis Kohle, vol. 10, p. 313) in each case, the organic S content was reduced to less than 0.2 gm. per 100 m.³ of gas.  The amount of organic S changed into H₂S was very small, the major part of it being fixed on the catalyst.  A preliminary extraction of H₂S from the gas is necessary, otherwise the amounts of total S, remaining in gas, are 0.66, 3.12, 0.82 gm. per 100 m.³, respectively.  With Fe₂O₃ on a pumice support, 30% Fe₂O₃, and Luxmasse, at 350° and 330 cc. per hr. per cc. contact, the organic S was completely removed from the gas.  No preliminary extraction of H₂S is necessary, and the S is economically removed to less than 0.2 gm. S per 100 m.³, organic S less than 0.07 gm. per 100 m.³, total S less than 0.07 gm. per 100 m.³, or 99.7% S removed.  The Luxmasse used by the authors was a byproduct obtained in the manufacture of Al, red mud, often used in city gas plants for H₂S removal, which in muddy form contained 38.2% of H₂O.  The material was dried for 12 hr. at 105° and then crushed to 3-5 mm. granules.

        TSUNEOKA, S., AND FUNASAKA, W.  Benzine Synthesis From Carbon Monoxide and Hydrogen at Ordinary Pressure.  XLII.  Purification of the Gaseous Raw Material Used for Benzine Synthesis.

        1.  Removal of Organic Sulfur Compounds at Low Temperature.  See abs. 1878.

        ----------.  Benzine Synthesis From Carbon Monoxide and Hydrogen at Ordinary Pressure.  XXXV.  Microscopic Study of Alloy Catalysts.  See abs. 1871.

        ----------.  Benzine Synthesis From Carbon Monoxide and Hydrogen at Ordinary Pressure.  XXVII.  Cobalt Alloy Catalysts.  See abs. 1863.

        TSUNEOKA, S., AND MURATA, Y.  Benzine Synthesis From Carbon Monoxide and Hydrogen at Ordinary Pressure.  XXIII.  Extraction and Leaching Treatment of Alloy Catalysts.  See abs. 1859.

        ----------.  Benzine Synthesis From Carbon Monoxide and Hydrogen at Ordinary Pressure.  XXVI.  Gas Contraction and Benzine Synthesis.  See abs. 1862.

        ----------.  Benzine Synthesis From Carbon Monoxide and Hydrogen at Ordinary Pressure.  XXV.  General Properties and Constituents of the Benzine Prepared With an Alloy Catalyst.  See abs. 1861.

        ----------.  Benzine Synthesis From Carbon Monoxide and Hydrogen at Ordinary Pressure.  XXIX.  Influence of Bore and Length of the Reaction Tube.  See abs. 1865.

        ----------.  Benzine Synthesis From Carbon Monoxide and Hydrogen at Ordinary Pressure.  XXIV.  Influence of the Particle Size and the Hydrogen Treatment or Oxidation Conditions of the Alloy Catalysts.  See abs. 1860.

        ----------.  Benzine Synthesis From Carbon Monoxide and Hydrogen at Ordinary Pressure.  XXVIII.  Nickel-Alloy Catalysts.  See abs. 1864.

        ----------.  Benzine Synthesis From Carbon Monoxide and Hydrogen at Ordinary Pressure.  XXXIX.  Properties of a Precipitated Nickel-Cobalt Catalyst.  See abs. 1875.

        ----------.  Benzine Synthesis From Carbon Monoxide and Hydrogen at Ordinary Pressure.  XL.  Proportions of Nickel and Cobalt, and the Influence of the Addition of Coppe3r to the Precipitated Nickel-Cobalt Catalysts.  See abs. 1876.

        ----------.  Benzine Synthesis From Carbon Monoxide and Hydrogen at Ordinary Pressure.  XXXII.  Studies on the Material of the Reaction Furnace.  See abs. 1868.

        ----------.  Synthesis of Benzine From Carbon Monoxide and Hydrogen at Ordinary Pressure.  XXXVI.  Relation of the Activity of the Catalyst to the Synthesis Requirements at too High a Temperature.  See abs. 1872.

        TSUNEOKA, S., AND NISHIO, A.  Benzine Synthesis From Carbon Monoxide and Hydrogen at Ordinary Pressure.  XXXVII.  Volume Velocity of the Gas.  See abs. 1873.

        ----------.  Synthesis of Benzine From Carbon Monoxide and Hydrogen at Ordinary Pressure.  XLVII.  Composition of Starting Gases with New Iron Catalyst.  See abs. 1883.

        TSUNEOKA, S., MURATA, Y., AND MAKINO, S.  Synthesis of Benzine From Carbon Monoxide and Hydrogen at Ordinary Pressure.  XLVI.  Preparation of New Iron Catalysts and Their Superior Properties.  See abs. 1882.