A zeolitized-pumice (Z-PM), obtained from a pumice mine waste by extraction of most of the silica contained, has been proposed as a new catalyst support. The as prepared Z-PM material was characterized by surface area and porosity measurements, XRD, SEM and TEM-EDX, showing a high content of crystalline zeolite Pc (about 60%) and a higher (33 m2/g) surface area compared to starting pumice. Pt and Pt-Sn supported on Z-PM were prepared by impregnation and their catalytic properties in the selective hydrogenation of campholenic aldehyde to naturanol investigated in detail. Results highlighted the better performance of Pt and Pt-Sn/Z-PM catalysts in the selective reduction of -C{double bond, long}O group in comparison to corresponding silica-supported catalysts
Zeolitized-pumice as a new support for hydrogenation catalysts
NERI, Giovanni;RIZZO, Giuseppe;CORIGLIANO, Francesco;ARRIGO, Ileana;
2008-01-01
Abstract
A zeolitized-pumice (Z-PM), obtained from a pumice mine waste by extraction of most of the silica contained, has been proposed as a new catalyst support. The as prepared Z-PM material was characterized by surface area and porosity measurements, XRD, SEM and TEM-EDX, showing a high content of crystalline zeolite Pc (about 60%) and a higher (33 m2/g) surface area compared to starting pumice. Pt and Pt-Sn supported on Z-PM were prepared by impregnation and their catalytic properties in the selective hydrogenation of campholenic aldehyde to naturanol investigated in detail. Results highlighted the better performance of Pt and Pt-Sn/Z-PM catalysts in the selective reduction of -C{double bond, long}O group in comparison to corresponding silica-supported catalystsPubblicazioni consigliate
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