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Reactions of the dimethylcyclosiloxanes in gas-phase catalytic processes. 1. Rupture of the si-c bonds of octamethylcyclotetrasiloxane by hydrogen chloride

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Conclusions

  1. 1.

    Pulsed gas chromatography has been used to study the catalytic rupture of the Si-C bonds in octamethylcyclotetrasiloxane (¯D4) under the action of gaseous hydrogen chloride.

  2. 2.

    Reaction orders with respect to ¯D4 and HCl have been determined for the rupture process. A mechanism has been proposed on the assumption that the adsorbed ¯D4 interacts directly with HCl from the gaseous phase.

  3. 3.

    Determination has been made of the activity of methanol hydrochlorination catalysts in Si-C bond rupture in the ¯D4 cyclosiloxane.

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Literature cited

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Additional information

Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 12, pp. 2707–2711, December, 1977.

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Ezerets, M.A., Khazanov, I.I., Vetrova, N.T. et al. Reactions of the dimethylcyclosiloxanes in gas-phase catalytic processes. 1. Rupture of the si-c bonds of octamethylcyclotetrasiloxane by hydrogen chloride. Russ Chem Bull 26, 2502–2506 (1977). https://doi.org/10.1007/BF00924552

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Keywords

  • Hydrogen
  • Chloride
  • Methanol
  • Chromatography
  • Gaseous Phase