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Study of the catalytic dehydration of mixed isopentanols and accompanying transformations of the formed isopentenes

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Summary

  1. 1.

    In the presence of strongly isomerizing catalysts like aluminosilicate and borophosphate, the composition of the isopentenes formed in the dehydration of mixtures of primary isoamyl alcohols is close to the equilibrium composition. Consequently, the isomerization of the isopentenes goes at a rate that is either equal to or relatively greater than the dehydration rate of the alcohol.

  2. 2.

    On calcium phosphate and aluminum oxide the isomerization of the formed isopentenes is slower than the dehydration of the alcohol, for which reason the composition of the formed isopentenes reflects the composition of the starting mixture of alcohols.

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Literature cited

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    V. N. Ipat'ev, Catalytic Reactions at High Temperatures and Pressures (available in English translation), Izd. AN SSSR, 1936.

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    Yu. G. Mamedaliev, M. A. Dalin, T. I. Mamedov, A. Z. Shikhmamedbekova, and D. I. Sailov, Dokl. AN AzerbSSR II., No. 10, 675 (1955).

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    Akira Mitsutomi, Bull. Chem. Soc., Japan34, 1518 (1961).

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    L. Kh. Freidlin, V. Z. Sharf, Z. T. Tukhtamuradov, and E. F. Litvin, Kinetika i Kataliz,3, 114 (1962).

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    L. Kh. Freidlin and V. Z. Sharf, Kinetika i Kataliz,2, 247 (1960).

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    L. Kh. Freidlin, V. Z. Sharf, O. M. Khol'mer, and L. L. Malkina, Kinetika i Kataliz,2, 228 (1961); Masloboino-Zhir. Prom., No. 10, 24 (1960); 29 (1961).

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    L. Kh. Freidlin, V. Z. Sharf, E. F. Litvin, and Z. T. Tukhtamuradov, Neftekhimiya,1, 548 (1961).

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Additional information

Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 3, pp. 531–534, March, 1965

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Freidlin, L.K., Sharf, V.Z. & Tukhtamuradov, Z.T. Study of the catalytic dehydration of mixed isopentanols and accompanying transformations of the formed isopentenes. Russ Chem Bull 14, 506–509 (1965). https://doi.org/10.1007/BF00846614

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Keywords

  • Oxide
  • Calcium
  • Alcohol
  • Aluminum
  • Phosphate