ON THE NATURE OF ACID CENTERS IN MG-CONTAINING ZSM-5 ZEOLITES

Authors
ROMANNIKOV VN FILIMONOVA SV MASTIKHIN VM
Citation
Vn. Romannikov et al., ON THE NATURE OF ACID CENTERS IN MG-CONTAINING ZSM-5 ZEOLITES, Reaction kinetics and catalysis letters, 51(1), 1993, pp. 109-118
Citations number
16
Categorie Soggetti
Chemistry Physical
Journal title
Reaction kinetics and catalysis letters → ACNP
ISSN journal
01331736
Volume
51
Issue
1
Year of publication
1993
Pages
109 - 118
Database
ISI
SICI code
0133-1736(1993)51:1<109:OTNOAC>2.0.ZU;2-X
Abstract
The catalytic activity of ZSM-5 zeolites containing Mg cations in vari ous concentrations has been studied in the alkylation of toluene by et hylene. The concentration of acid centers of different nature in these zeolites was characterized by IR spectroscopy of OH-groups and adsorb ed CO. The state of Mg cations in the samples was studied by N-15 NMR of the adsorbed N2O. The increase of Mg content was shown to decrease both the concentration of non-protic acid sites of medium strength and the activity of samples, which is related to the increase of associat ion degree of Mg cations in the zeolite.