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vol.49 número1INFLUENCE OF PARTICLE SIZE ON 31P-NMR ANALYSIS OF EXTRACTS FROM VOLCANIC ASH-DERIVED SOILS IN CHILE1-BENZYL-1,2,3,4-TETRAHYDROISOQUINOLINES: ¹H NMR CONFORMATIONAL STUDIES AND ROTATIONAL BARRIERS índice de autoresíndice de materiabúsqueda de artículos
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Journal of the Chilean Chemical Society

versión On-line ISSN 0717-9707

Resumen

CARDENAS T, GALO  y  OLIVA C, RICARDO. DRIFTS STUDIES OF ACRYLONITRILE ADSORPTION ON Pd/SdO2 AND PdSd/SdO2. J. Chil. Chem. Soc. [online]. 2004, vol.49, n.1, pp.11-15. ISSN 0717-9707.  http://dx.doi.org/10.4067/S0717-97072004000100003.

The acrylonitrile adsorption over Pd/SiO2 and PdSn/SiO2 catalysts wasprepared by "Solvated Metal Atom Dispersion" (SMAD) and analyzed by DRIFTS FTIR are studied. The catalysts were used in pellets and treated with dry N2(g) flow inside a flask in contact with the acrylonitrile vapours for 6 h. A change in the adsorption capacity of acrylonitrile with the increase in Sn content in the catalysts by following the Cº N IR band was studied. The decrease in the acrylonitrile adsorption produced a decrease in the hydrogenation rates of acrylonitrile and an increase in the hydrogenation selectivity to obtain allylamine, mainly due to a greater interaction of Cº N with Sn

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