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Synthesis of methyl isobutyl ketone over Pd/MgO/SiO2 / Jonathan J. Gamman in Industrial & engineering chemistry research, Vol. 49 N° 18 (Septembre 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 18 (Septembre 2010) . - pp. 8439–8443 Titre : Synthesis of methyl isobutyl ketone over Pd/MgO/SiO2 Type de document : texte imprimé Auteurs : Jonathan J. Gamman, Auteur ; S. David Jackson, Auteur ; Fiona A. Wigzell, Auteur Année de publication : 2010 Article en page(s) : pp. 8439–8443 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Catalysts  Gas  phase Résumé : In this paper, we have examined the activity and selectivity of catalysts for the one-step, gas phase production of methyl isobutyl ketone (MIBK) from acetone (propanone) over the temperature range 373−573 K. The catalysts used were an impregnated MgO/silica, a Pd-MgO/silica formed from coimpregnation of the nitrates, and a Pd supported on a 1% Mg doped silica, Pd/Mg-SiO2. Using MgO/silica, mesityl oxide (MO) was formed with 100% selectivity at 373 and 473 K. Addition of Pd gave 100% selectivity to MIBK at 373 K, albeit at low conversion. Pd-MgO/silica revealed a promotional effect of the MgO on the hydrogenation function of the Pd and a promotional effect of the Pd on the aldol condensation activity of the MgO. The Pd/Mg-SiO2 catalyst showed high selectivity but low conversion, as no promoting effect was observed. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie100770e [article] Synthesis of methyl isobutyl ketone over Pd/MgO/SiO2 [texte imprimé] / Jonathan J. Gamman, Auteur ; S. David Jackson, Auteur ; Fiona A. Wigzell, Auteur . - 2010 . - pp. 8439–8443. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 18 (Septembre 2010) . - pp. 8439–8443 Mots-clés : Catalysts  Gas  phase Résumé : In this paper, we have examined the activity and selectivity of catalysts for the one-step, gas phase production of methyl isobutyl ketone (MIBK) from acetone (propanone) over the temperature range 373−573 K. The catalysts used were an impregnated MgO/silica, a Pd-MgO/silica formed from coimpregnation of the nitrates, and a Pd supported on a 1% Mg doped silica, Pd/Mg-SiO2. Using MgO/silica, mesityl oxide (MO) was formed with 100% selectivity at 373 and 473 K. Addition of Pd gave 100% selectivity to MIBK at 373 K, albeit at low conversion. Pd-MgO/silica revealed a promotional effect of the MgO on the hydrogenation function of the Pd and a promotional effect of the Pd on the aldol condensation activity of the MgO. The Pd/Mg-SiO2 catalyst showed high selectivity but low conversion, as no promoting effect was observed. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie100770e