INVESTIGADORES
BELELLI Patricia Gabriela
artículos
Título:
Silica-supported metallocene for ethylene polymerization
Autor/es:
BELELLI, PATRICIA GABRIELA; FERREIRA, MARÍA LUJÁN; DANIEL EDUARDO, DAMIANI
Revista:
APPLIED CATALYSIS A-GENERAL
Editorial:
Elsevier
Referencias:
Año: 2002 vol. 228 p. 189 - 202
ISSN:
0926-860X
Resumen:
We analyzed the effect of the addition of a Lewis acid (AlCl3) or a Lewis base (EB-ethyl benzoate) to the supported system rac-EtInd2ZrCl2/MAO/SiO2. We studied the additive effect in two different ways: as external and internal component. The results indicate that the additives are acting in different manners depending on the method of addition and the type of additive. An important result was obtained when the Lewis acid was added as an internal component. The molar ratio [MAO]:[AlCl3] of the co-impregnation step would be the most important factor to obtain an active supported catalyst.3) or a Lewis base (EB-ethyl benzoate) to the supported system rac-EtInd2ZrCl2/MAO/SiO2. We studied the additive effect in two different ways: as external and internal component. The results indicate that the additives are acting in different manners depending on the method of addition and the type of additive. An important result was obtained when the Lewis acid was added as an internal component. The molar ratio [MAO]:[AlCl3] of the co-impregnation step would be the most important factor to obtain an active supported catalyst.
