Catalytic conversion CCI3F and CCI2F2 over metal supported catalysts

• Autorzy: Kirszensztejn P , Wachowski L. , Szymkowiak A. , Marciniak P. , Czajka B. , Skupinski W.
• Języki publikacji: EN

Abstrakty

EN

A comparison of the catalytic properties of metals (Pt, Pd and Ru) supported on carbon in the process of catalytic hydrogenolysis of the C-halogen bond in CCl₂F₂ (CFC-12) and CCl₃F (CFC-11) was made. The mechanism of the halogen substitution in the catalytic conversion of CCl₃F was found to differ from that proposed for CCl₂F₂. The catalysts with Ru as the active phase were characterized by much lower activity than those with Pt or Pd, and the main products of conversion in the two reactions were CHClF₂ and CHCl₂F, so the products of substitution of only one chlorine atom in the molecule were obtained, in contrast to the case when Pt or Pd were used.

Słowa kluczowe

EN

hydrodehalogenation; metal catalyst; fluorohydrocarbon; catalytic property

• Wydawca: -
• Czasopismo: Polish Journal of Environmental Studies
• Rocznik: 2003
• Tom: 12
• Numer: 3
• Opis fizyczny: p.315-323,fig.,ref.

Twórcy

autor

Kirszensztejn P

• A.Mickiewicz University, Grunwaldzka 6, 60-780 Poznan, Poland

autor

Wachowski L.

autor

Szymkowiak A.

autor

Marciniak P.

autor

Czajka B.

autor

Skupinski W.

Bibliografia

• 1. KIPLINGER J.L., RICHMOND T.G., OSTERBERG C.E., Chem.Rev. 94, 373, 1994.
• 2. MOLINA M.J., ROWLAND F.S., Nature 810, 249, 1974.
• 3. Scientific Assessment of Stratospheric Ozone: 1989, World Meterological Organization Global Ozone Research and Monitoring Project, Report No.20, 1 and 2 1989
• 4. MANZER L.E., RAO V.N.M., Adv. Catal., 39, 329, 1993.5. BELL T.N., KIRSZENSZTEJN P., CZAJKA B., React. Kinet. Catal. Lett. 56, 221,1995.
• 6. OHNISHI R., WANG W-L, ICHIKAWA M., Appl. Catal. A: General 113, 29, 1994.
• 7. COQ B., COGNION J.M., FIGUERAS F., TOURNIGANT D., J. Catal. 141, 21, 1993.
• 8. WIERSMA A., van de SANDT E.J.A.X, MAKKE M., LUTEIN C.P., van BEKKUN H., MOULIJN J.A., Catal. Today 27, 257, 1996.
• 9. CZAJKA B., KIRSZENSZTEJN P., WACHOWSKI L., ŁOPATKA R., BELL T.N., BECALSKI A., Archiwum Ochrony Środowiska 23 (3-4), 47, 1997.
• 10. CZAJKA B., KIRSZENSZTEJN P., J. Therm. Anal. Cal. 55, 619, 1999.
• 11. AHN B.S., LEE S.C., MOON D.J., LEE B.G., J. Mol. Catal. 106, 83, 1996.
• 12. van de SANDT E.J.A.X., Catalytic Hydrogenolysis of CCl2F2 into CH2F2, Chapter 2, Catalyst selection, PhD-thesis, Delf University of Technology, p.26, 1997.
• 13. CZAJKA B., KIRSZENSZTEJN P., WACHOWSKI L., in Proceedings of the II International Scientific Conference “Air Protection in Theory & Application” Zabrze, Poland, pp. 161-169, 1998.
• 14. TAKITA Y., IMAMURA T., MIZUHARA Y., ISHIHARA T., J. Catal. 136, 617, 1992.
• 15. KEMNITZ E., KOHNE A., LIESKE E., J. Fluorine Chem. 81, 197, 1997.
• 16. CHAN CH.W., GELLMAN A.J., Catal. Lett., 53, 139, 1998.
• 17. BELL T.N., KIRSZENSZTEJN P., CZAJKA B., Catal. Lett. 30, 305, 1995.
• 18. BARIN I., Thermochemical data of pure substances, 3th Ed.VCH, Weinheim 1995.
• 19. WEISS A.H., GAMBHIR B.S.AND LEON R.B., J. Catal. 22, 245, 1971.