Catalytic Hydrodehalogenation of CFC’s (Freons)

  • P. Kirszensztejn
  • L. Wachowski
  • B. Czajka
  • R. Łopatka
  • T. N. Bell
Part of the Environmental Science Research book series (ESRH, volume 51)

Abstract

The photolysis of fully halogenated chlorofluorocarbons (CFC’s) in the stratosphere, and their resultant role in ozone depletion is of great global concern1. In addition to the role played by CFC’s in the destruction of ozone, they also contribute to the “green-house effect” and hence to climatic changes2. The replacement of halogen by hydrogen makes the halo-carbon susceptible to destructive free radical attack in the troposphere and considerably reduces the depletion of ozone3–6. The following reaction may serve as a pertinent example:
$${\text{CC}}{{\text{l}}_2}{{\text{F}}_2}\xrightarrow[{{\text{catalyst}}}]{{{{\text{H}}_2}}}{\text{C}}{{\text{H}}_{\text{2}}}{{\text{F}}_2} + {\text{HCl}}({\text{HF}})$$

Keywords

Ethyl Ozone Catalysis Chlorinate Pyridine 

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Copyright information

© Plenum Press, New York 1996

Authors and Affiliations

  • P. Kirszensztejn
    • 1
  • L. Wachowski
    • 1
  • B. Czajka
    • 1
  • R. Łopatka
    • 1
  • T. N. Bell
    • 2
  1. 1.Faculty of ChemistryA. Mickiewicz UniversityPoznañPoland
  2. 2.Department of ChemistrySimon Fraser UniversityBurnabyCanada

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