Abstract: The interaction of di-n-butyl phthalate (DBP as the internal donor) with AlEt3 cocatalyst was studied by DRIFT spectroscopy for the DBP/MgCl2 sample and supported TiCl4/DBP/MgCl2 catalysts. For DBP/MgCl2 sample, it was shown that AlEt3 partially removes all types of DBP complexes from the MgCl2 surface and adsorbs on surface sites released by the removal of DBP. In the case of supported catalysts, the cocatalyst predominantly removes more weak DBP complexes. In addition, the cocatalyst completely removes loosely coordinated DBP and surface complexes of phthaloyl chlorides formed at the catalyst preparation. A part of removed DBP can adsorb again on the catalyst surface as complexes with surface alkylaluminum chloride compounds. The external donor alkylalkoxysilane does not markedly influence the removal of DBP complexes from the catalyst surface.

Cite: Potapov A.G. , Bukatov G.D. , Zakharov V.A.
DRIFTS Study of the Interaction of the Internal Donor in TiCl4/di-n-butyl phthalate/MgCl2 Catalysts with AlEt3 Cocatalyst
Journal of Molecular Catalysis A: Chemical. 2010. V.316. N1-2. P.95-99. DOI: 10.1016/j.molcata.2009.10.005 WOS Scopus РИНЦ ANCAN OpenAlex

Dates:

Submitted:	Dec 5, 2008
Accepted:	Oct 5, 2009
Published online:	Oct 12, 2009
Published print:	Feb 1, 2010

Identifiers:

Web of science:	WOS:000273890300013
Scopus:	2-s2.0-71249086685
Elibrary:	15311442
Chemical Abstracts:	2009:1554781
Chemical Abstracts (print):	152:526218
OpenAlex:	W2139396592

Citing:

DB	Citing
Web of science	29
Scopus	37
Elibrary	32
OpenAlex	32

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