Basell Poliolefine Italia S.r.l.

Piero Gessi

Maria Di Diego

Giampiero Morini

Gianni Collina

Gabriele Mei

Massimo Covezzi

Pietro Baita

Benedetta Gaddi

Roberta Pica

Diego Brita

Daniele Evangelisti

Lorella Marturano

Paolo Vincenzi

Silvia Soffritti

A process for preparing a catalyst component made from or containing Mg, Ti, and at least an electron donor compound (ID), including the steps of: (a) reacting a Mg based compound with a Ti compound, having at least a Ti—Cl bond, in an amount such that the Ti/Mg molar ratio is greater than 3 and at a temperature ranging from 0 to 150° C., thereby yielding an intermediate solid catalyst component containing Mg and Ti; and (b) contacting the intermediate solid catalyst component with a gaseous stream containing the electron donor compound (ID) in a gaseous dispersing medium, thereby yielding a final solid catalyst component having an ID/Ti molar ratio ranging from 0.5:1 to 20:1.

Process for the preparation of a catalyst component and components therefrom obtained

A catalyst component made from or containing Ti, Mg, chlorine, an amount of a first internal donor selected from esters of aliphatic monocarboxylic acids (EAA), and an amount of a second internal donor selected from cyclic ethers (CE), wherein the EAA/CE molar ratio ranges from 0.02 to less than 20.

Catalyst components for the polymerization of olefins and catalysts therefrom obtained

The present technology relates to a method of introducing a supported antistatic compound that does not comprise a transition-metal-based catalyst component for use in an olefin polymerization reactor. In some embodiments, the methods disclosed herein avoid the formation of polymer agglomerates in the reactor and minimize potentially negative effects on catalyst yield.

Method for improving the operability of an olefin polymerization reactor

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Ferrara, Italy

Piero Gessi