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US 2017/0283529 A1Published application
Magnesium dichloride-ethanol adducts and catalyst components obtained therefrom
AssigneeBasell Poliolefine Italia S.r.l.
InventorsARRIGO ARLETTI, LUCIA CAIAZZO, GIANNI COLLINA, DANIELE EVANGELISTI, OFELIA FUSCO, BENEDETTA GADDI
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Abstract
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.
Claims15
A solid catalyst precursor comprising magnesium chloride and ethanol comprising:
- (i) a total mercury porosity for pores with radii up to 1000 nm of at least 0.15 cm3/g;
- (ii) an average pore radius (APR) as determined by a mercury porosimeter from 20.0-300.0 μm;
- (iii) a fraction of porosity for pores of radii from 100-1000 nm (LRP) of at least 25% with respect to total porosity;
- and
- (iv) a value of the formula (APR/% wt EtOH)*LRP of higher than 50.0 when the APR is lower than 100 nm, and higher than 210.0 when the APR is higher than 100 nm.
2 more elements
Dependencies are inferred from the claim text.