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Nitration of phenol over a ZSM-5 zeolite / M. Arshadi in Industrial & engineering chemistry research, Vol. 49 N° 12 (Juin 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 12 (Juin 2010) . - pp. 5504–5510 Titre : Nitration of phenol over a ZSM-5 zeolite Type de document : texte imprimé Auteurs : M. Arshadi, Auteur ; M. Ghiaci, Auteur ; A. Gil, Auteur Année de publication : 2010 Article en page(s) : pp. 5504–5510 Note générale : Chemistry engineering Langues : Anglais (eng) Mots-clés : Liquid  phase  nitration  of  phenol  Nitric  acid Résumé : In this paper, liquid phase nitration of phenol over a solid acid catalyst, ZSM-5 zeolite, was investigated by nitric acid (60%) under various solvent and temperature conditions. The performance of the nitration in ortho and para positions of phenol is suggested to derive from the amount of catalyst and the solvent effects. The loading level of the substrate inside or outside the pores of the zeolite makes the relatively high selectivity to the ortho or para product. However, the experimental results are accounted for by the important role of solvent and the amount of ZSM-5 zeolite in ortho/para selectivity. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901862q [article] Nitration of phenol over a ZSM-5 zeolite [texte imprimé] / M. Arshadi, Auteur ; M. Ghiaci, Auteur ; A. Gil, Auteur . - 2010 . - pp. 5504–5510. Chemistry engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 12 (Juin 2010) . - pp. 5504–5510 Mots-clés : Liquid  phase  nitration  of  phenol  Nitric  acid Résumé : In this paper, liquid phase nitration of phenol over a solid acid catalyst, ZSM-5 zeolite, was investigated by nitric acid (60%) under various solvent and temperature conditions. The performance of the nitration in ortho and para positions of phenol is suggested to derive from the amount of catalyst and the solvent effects. The loading level of the substrate inside or outside the pores of the zeolite makes the relatively high selectivity to the ortho or para product. However, the experimental results are accounted for by the important role of solvent and the amount of ZSM-5 zeolite in ortho/para selectivity. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901862q