Catalysis Letters

, Volume 21, Issue 3–4, pp 391–403 | Cite as

Theoretical and experimental analysis of capsule membrane phase transfer catalysis: Selective alkaline hydrolysis of benzyl chloride to benzyl alcohol

  • G. D. Yadav
  • P. H. Mehta
Article

Abstract

Intensification of and selectivity in multiphase reactions catalysed by phase transfer catalysts can be greatly improved by the use of the so-called capsule membrane-PTC (CM-PTC) technique in comparison with the L-L PTC. We report here the theoretical and experimental analysis of the CM-PTC and inverse CM-PTC for exclusively selective formation of benzyl alcohol from the alkaline hydrolysis of benzyl chloride. The theoretical analysis shows that it is possible to simultaneously measure the rate constant and equilibrium constant under certain conditions. The effects of speed of agitation, catalyst concentration, substrate concentration, nature of catalyst cation, membrane structure, nucleophile concentration, surface area for mass transfer and temperature on the rate of reaction are discussed.

Keywords

Phase transfer catalysis alkaline hydrolysis of benzyl chloride 

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References

  1. [1]
    R.E. Kirk and D.F. Othmer,Encyclopedia of Chemical Technology, Vol. 3, 3rd Ed. (Wiley-Interscience, New York, 1979) p. 795.Google Scholar
  2. [2]
    Y. Okahata, K. Ariga and T. Seki, J. Chem. Soc. Chem. Commun. 51 (1985) 920.Google Scholar
  3. [3]
    E.V. Dehmlow and S.S. Dehmlow,Phase Transfer Catalysis, 2nd Ed. (Verlag Chemie, Weinheim, 1983).Google Scholar
  4. [4]
    C.M. Starks and C. Liotta,Phase Transfer Catalysis: Principles and Techniques (Academic Press, New York, 1978).Google Scholar
  5. [5]
    G.D. Yadav and P.H. Mehta, Langmuir, submitted.Google Scholar
  6. [6]
    G.D. Yadav and B. V. Haldavanekar, Langmuir, submitted.Google Scholar

Copyright information

© J.C. Baltzer AG, Science Publishers 1993

Authors and Affiliations

  • G. D. Yadav
    • 1
  • P. H. Mehta
    • 1
  1. 1.Department of Chemical TechnologyUniversity of BombayMatungaIndia

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