Search Results - "Arata, Kazushi"

Preparation of superacids by metal oxides for reactions of butanes and pentanes by Arata, Kazushi

“…Recent works on preparation of solid superacid catalysts which are active for reactions of butanes and pentanes are reviewed. Sulfated metal oxides are…”
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The surface structure of sulfated zirconia: Studies of XPS and thermal analysis by Hino, Makoto, Kurashige, Mitsuhiko, Matsuhashi, Hiromi, Arata, Kazushi

“…Sulfated zirconias were prepared using two kinds of amorphous zirconia gels, XZO 631 and 632 supplied by MEL Chemicals, and their thermal gravimetrical…”
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Skeletal isomerization mechanism of alkanes over solid superacid of sulfated zirconia by Matsuhashi, Hiromi, Shibata, Hiromi, Nakamura, Hideo, Arata, Kazushi

“…Skeletal isomerizations of n-butane and n-pentane were performed over solid superacids of sulfated zirconia and Pt-promoted sulfated zirconia. Changes in…”
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Measurement of Heat of Argon Adsorption for the Evaluation of Relative Acid Strength of Some Sulfated Metal Oxides and H-type Zeolites by Matsuhashi, Hiromi, Tanaka, Takae, Arata, Kazushi

“…The relative acid strength of sulfated SnO2, sulfated ZrO2, silica−alumina, H−Y, H−ZSM-5, and H-mordenite was estimated by the heat of Ar adsorption,…”
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Adsorption and desorption of small molecules for the characterization of solid acids by MATSUHASHI, Hiromi, ARATA, Kazushi

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Friedel–Crafts Benzoylation of Alkylbenzenes with Benzoic Anhydride Catalyzed by Solid Superacids by Nakamura, Hideo, Arata, Kazushi

“…The liquid–solid phase benzoylation of mono-alkylbenzenes with methyl, ethyl, propyl, and butyl groups and xylenes was carried out with benzoic anhydride at…”
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Synthesis of a solid acid of tungsta–niobia more active than aluminosilicates for decompositions of cumene, ethylbenzene, and toluene by Hino, Makoto, Kurashige, Mitsuhiko, Arata, Kazushi

“…A solid acid of tungsten–niobium oxide is obtained by evaporating water of a mixed solution of ammonium metatungstate and niobium ammonium oxalate in water in…”
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Distinction of Acid-type on Solid Acid Surface by Comparison of Adsorption Heats of Nitrogen and Argon by Matsuhashi, Hiromi, Yamagata, Keiko, Arata, Kazushi

“…The heats of adsorption of N2 and Ar on solid acids were compared by applying the Clausius–Clapeyron equation to isotherms. The heats on H-mordenite and…”
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Friedel–Crafts Acetylation, Propionylation, and Butyrylation of Toluene Catalyzed by Solid Superacids by Nakamura, Hideo, Kashiwara, Yuki, Arata, Kazushi

“…The liquid–solid phase acetylation of toluene with acetic anhydride was carried out over solid superacids of sulfated metal oxides (SO4/MeOx) and supported…”
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Dehydrogenative Coupling of Methane Catalyzed by Platinum-Added Sulfated Zirconia and Characterization of the Catalyst Surface by Kurosaka, Tadahiro, Matsuhashi, Hiromi, Arata, Kazushi

“…An active and stable catalyst of 3 wt% Pt-added sulfated-zirconia for the dehydrogenative coupling of methane without oxidant was obtained by sulfating…”
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Biodiesel fuel production with solid superacid catalysis in fixed bed reactor under atmospheric pressure by Furuta, Satoshi, Matsuhashi, Hiromi, Arata, Kazushi

“…Solid superacid catalysts of sulfated tin and zirconium oxides and tungstated zirconia are prepared and evaluated in the trans-esterification of soybean oil…”
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A Study of the Preparation Procedures of Sulfated Zirconia Prepared from Zirconia Gel. The Effect of the pH of the Mother Solution on the Isomerization Activity of n-Pentane by Tatsumi, Tetsuji, Matsuhashi, Hiromi, Arata, Kazushi

“…Solid superacids of sulfated zirconia were prepared by the sulfation of zirconia gels, which were obtained from mother solutions with different pH values. The…”
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Preparation of superacid of iron-supported zirconia for reaction of butane to isobutane by HINO, M, ARATA, K

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Biodiesel fuel production with solid amorphous-zirconia catalysis in fixed bed reactor by Furuta, Satoshi, Matsuhashi, Hiromi, Arata, Kazushi

“…Amorphous zirconia catalysts, titanium-, aluminum-, and potassium-doped zirconias, were prepared and evaluated in the transesterification of soybean oil with…”
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Determination of acid strength of solid superacids by temperature programmed desorption using pyridine by Matsuhashi, Hiromi, Motoi, Hiroko, Arata, Kazushi

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Formation of Trimethylpentanes from Isobutane and 1-Butene Catalyzed by Sulfated Metal Oxides by Satoh, Kunihiko, Matsuhashi, Hiromi, Arata, Kazushi

“…The gas-phase alkylation of 1-butene with isobutane was carried out over superacids of sulfated metal oxides, SO4/Fe2O3, SO4/Al2O3, SO4/TiO2, SO4/SnO2, and…”
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Platinum-added Sulfated-zirconia Effective for Highly Selective Dehydrogenative Coupling of Methane by Kurosaka, Tadahiro, Matsuhashi, Hiromi, Arata, Kazushi

“…An active and stable catalyst of 3 wt% Pt-added sulfated-zirconia for the dehydrogenative coupling of methane is obtained by impregnating zirconia gel with 0.5…”
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Catalytic action of sulfated tin oxide for etherification and esterification in comparison with sulfated zirconia by Furuta, Satoshi, Matsuhashi, Hiromi, Arata, Kazushi

“…Two highly active solid superacids of sulfated tin oxide were prepared, and their catalytic action was compared with that of sulfated zirconia. One was…”
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Synthesis of solid superacids and their activities for reactions of alkanes by Arata, Kazushi, Matsuhashi, Hiromi, Hino, Makoto, Nakamura, Hideo

“…Our recent works on synthesis of solid superacids are reviewed. For evaluation of the surface acidity, temperature-programmed desorption of argon is proposed…”
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meta-Stannic acid as an effective support for the preparation of sulfated and tungstated stannias by Hino, Makoto, Takasaki, Satoshi, Furuta, Satoshi, Matsuhashi, Hiromi, Arata, Kazushi

“…Sulfated and tungstated stannias were prepared from commercial Sn-gels of meta-stannic acids; the former showed catalytic activities higher than those of the…”
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