The reaction of phenol with anisole was carried out over three X-, six Y-, a ZSM-5 and a ZSM-11 zeolites, and over γ-Al2O3, in a fixed-bed continuous reactor. Alkylation products were cresols (o>p>m), xylenols and methylanisoles; also some dealkylation of anisole to phenol occurred. Selectivity to cresols and xylenols in the range 45-60% and 25-30%, respectively, at anisole conversions of around 90%, were reached with HY and HNaY zeolites, and with γ-Al2O3, when operating over fresh catalysts. Alkylations were particularly ortho-selective over γ-Al2O3.
|Titolo:||ALKYLATION OF PHENOL WITH ANISOLE OVER ZEOLITES OR GAMMA-ALUMINA|
BELTRAME, PAOLO (Primo)
FORNI, LUCIO (Ultimo)
|Settore Scientifico Disciplinare:||Settore CHIM/02 - Chimica Fisica|
|Data di pubblicazione:||1987|
|Digital Object Identifier (DOI):||10.1016/S0166-9834(00)82902-4|
|Appare nelle tipologie:||01 - Articolo su periodico|