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Synthesis of highly active superacids of SO4/ZrO2 with Ir, Pt, Rh, Ru, Os, and Pd substances for reaction of butane

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Abstract

Highly acidic catalysts stronger than the SO4/ZrO2 superacid with an acid strength of Ho ⩽ −16.04 were obtained by kneading Zr(OH)4 with ammonium sulfate together with chlorides of Ir, Pt, Rh, Ru, Os, and Pd followed by calcining in air at 600°C, the metal concentration being equivalent to Pt of 7.5 wt% based on the hydroxide. The catalysts with Ir and Pt materials were highest in activity for the skeletal isomerization of butane to isobutane. The present catalysts were not obtained by treating the crystallized oxide, ZrO2 calcined at 700°C, but the amorphous form followed by calcination to the crystallization.

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Authors and Affiliations

  1. Hakodate Technical College, Tokura-cho, 042, Hakodate, Japan

    Makoto Hino

  2. Department of Science, Hokkaido University of Education, Hachiman-cho, 040, Hakodate, Japan

    Kazushi Arata

Authors
  1. Makoto Hino
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  2. Kazushi Arata
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Additional information

Superacids by metal oxides, VI. For previous publication in this series see ref. [1].

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Hino, M., Arata, K. Synthesis of highly active superacids of SO4/ZrO2 with Ir, Pt, Rh, Ru, Os, and Pd substances for reaction of butane. Catal Lett 30, 25–30 (1994). https://doi.org/10.1007/BF00813669

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  • DOI: https://doi.org/10.1007/BF00813669

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