Influence of Reaction Condition on CF4 Synthesis by Fluorination of CF2Cl2 and CCl4

이염화이불화메탄과 사염화메탄의 불화에 의한 사불화메탄의 합성에서 반응조건의 영향

  • 이윤우 (한국과학기술연구원 환경복원연구센터) ;
  • 이경환 (한국과학기술연구원 환경복원연구센터) ;
  • 임종성 (한국과학기술연구원 환경복원연구센터) ;
  • 김재덕 (한국과학기술연구원 환경복원연구센터) ;
  • 이윤용 (한국과학기술연구원 환경복원연구센터)
  • Received : 1998.09.07
  • Accepted : 1998.11.25
  • Published : 1999.04.10

Abstract

For the fluorination of $CF_2Cl_2$, the yield of $CF_4$ was found to be increased with the contact time and the reaction temperature. When the mole ratio of HF/$CF_2Cl_2$ is 3 or above, the yield of $CF_4$ was attained to 100% at $370^{\circ}C$ and contact time of 3 seconds. In the case of the fluorination of $CCl_4$ with HF, the yield of $CF_4$ was obtained above 90% at the reaction temperature of $500^{\circ}C$, the contact time of 3 seconds, and the mole ratio of HF/$CCl_4$ of 5.

Keywords

$CCl_4$ & $CF_2Cl_2$ & $CF_4$;${\gamma}-chromia$;Fluorination;Reaction Condition

References

  1. Japan Patent, 55-113728 Daikin
  2. J. appl. Chem. Biotechnol. v.23 G. P. Gambaretto;F. Avezzu;E. Gola
  3. Appl. Catal. A v.79 L. Rowley;J. Thomson;G.Webb;J. M. Winfield
  4. J. of Catal. v.174 A. Farrokhnia;. Sakakini;K. C. Waugh
  5. J. of catal. v.171 S. Brunet;B. Boussand;D. Martin
  6. US Patent 3,992,325 Du Pont
  7. US Patent 3,752,850 Farbwerke Hoechst
  8. US Patent 3,202,720 M. H. Glenside;A. H. Fainberg