Korean Journal of Chemical Engineering

, Volume 14, Issue 6, pp 502–506 | Cite as

Catalytic fluorination of HCFC-133a (1,1,1-trifluoro-2-chloroethane)

  • Dong Hyun Cho
  • Young Gul Kim
  • Moon Jo Chung
  • Jong Shik Chung


Catalytic fluorination of HCFC-133a was performed over metal oxide catalysts. Chromium oxide showed the best catalytic activity among several metal oxides tested. An increase in the crystallinity with decreased surface area resulted in a decrease of catalytic activity for the fluorination reaction. Active phase of chromia is Cr-O-F-OH having a proper ratio of O/F and a high hydroxyl content. The hydroxyl content on the catalyst is strongly dependent on support material. The selectivity to HFC-134a is independent of the O/F ratio on the Cr surface.

Key words

Chromium Oxide Fluorination l,l,l-Trifluoro-2-Chloroethane 1,1,1,2-Tetrafluoroethane 


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Copyright information

© Korean Institute of Chemical Engineering 1997

Authors and Affiliations

  • Dong Hyun Cho
    • 1
  • Young Gul Kim
    • 1
  • Moon Jo Chung
    • 1
    • 2
  • Jong Shik Chung
    • 1
  1. 1.Department of Chemical Engineering and School of Environmental EngineeringPohang University of Science and TechnologyPohangKorea
  2. 2.CFC Alternative Tech, CenterKISTSeoulKorea

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