Basell Poliolefine Italia S.r.l.

Basell Poliolefine Italia, S.p.a.

Montell North America Inc.

Montell Technology Company Bv

Arrigo Arletti

Anna Fait

Paolo Vincenzi

Lucia Caiazzo

Giampiero Morini

Gianni Collina

Gabriele Govoni

Ofelia Fusco

Benedetta Gaddi

Daniele Evangelisti

Gianni Pennini

The present disclosure relates to a porous solid adduct comprising magnesium chloride and ethanol, characterized by a relationship between the content of alcohol, average pore radius and amount of porosity deriving from pores with radii of 100-1000 nm, and catalyst components produced therefrom that are capable of producing polyolefins with increased porosity.

Magnesium dichloride-ethanol adducts and catalyst components obtained therefrom

A multistage process for the continuous production of an emulsion comprising subjecting at least two immiscible liquids to a sequence of at least two mixing stages carried out in at least two successive stator-rotor devices, wherein a peripheral outlet from a first stator-rotor device is connected to an axial inlet in the successive stator-rotor device by means of a duct in which the Reynold number Reinside said duct is higher than 5000, and the peripheral velocity of each rotor of said stator-rotor devices ranges from 5 to 60 m/s.

Process for the continuous production of emulsions

Process for preparing TiOpowders starting from a liquid comprising chlorinated titanium compounds, the process comprising:

Preparation for Tio2 powders from a waste liquid containing titanium compounds

A process for preparing spherical support particles used in the preparation of catalytic components for the polymerization of olefins by (a) forming an emulsion of an adduct of a Mg dihalide and a Lewis base compound in a liquid medium, and (b) cooling the emulsion by transferring it into a cooling bath containing a cooling liquid in motion wherein the cooling liquid is moving inside a tubular zone and the ratio V/Vof the velocity (V) of the emulsion coming from step (a) to the velocity of the cooling liquid (V) of step (b) is between 0.25 and 4. The resulting spherical support particles have a very narrow size distribution and particularly regular morphology.

Process for the preparation of a spherical support comprising a Mg dihalide

Solid catalyst component for the polymerization of olefins, includes the product of the direct reaction, with no subsequent reactions with reducing organometallic compounds, between a titanium compound and a support obtained by contacting a metal oxide containing hydroxyl groups with a solution containing A) a magnesium chloride; B) from 1 to 6 moles of an alcohol per mole of magnesium chloride, in a halogenated hydrocarbon or aromatic hydrocarbon organic solvent C) capable of bringing the magnesium chloride in solution in quantities greater than or equal to 5 grams per liter in the presence of the above-mentioned quantities of alcohol B), the solvent not being able to form adducts with the magnesium chloride.

Components and catalysts for the polymerization of olefins

A process, particularly a gas phase fluidised bed process, for the production of polymers avoids formation of sheets or chunks within the reactor, without the need to use antistatic agents, which can reduce the activity of the catalyst or alter the characteristics of the yielded product. According to the invention, a device generates a corona discharge in the polymerisation reactor during the polymerisation process; an AC voltage difference is applied between the elements which constitute the discharging pair of the device.

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Finale Emilia-Modena, Italy

Arrigo Arletti