Catalyst for the (co) polymerization of ethylene
AssigneeECP Enichem Polimeri S.r.l.
InventorsFederico Milani, Luciano Luciani, Maddalena Pondrelli
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Abstract
Solid component of catalyst for the (co)polymerization of ethylene, including magnesium, halogen and titanium, obtained by: (i) dissolution, in an inert organic solvent, of a magnesium dialkyl, or a magnesium alkyl halide, a tin halide (IV) and possibly also an alkyl halide and their contact until a granular solid precipitates from the solution; (ii) contact of said granular solid and its interaction with a titanium halide, alkoxide or halo-alkoxide, to form a solid component of catalyst.
Claims19
Solid component of catalyst for the (co)polymerization of ethylene, including magnesium, halogen and titanium, obtained by:
- (i) dissolving, in an inert organic solvent, a magnesium dialkyl or a halide of magnesium alkyl, and a tin (IV) halide, with an atomic ratio between the tin, in said tin halide, and the magnesium, in said magnesium dialkyl or halide of magnesium alkyl, of 0.1:1 to 15:1, and contacting them until a granular solid precipitates from the solution;
- (ii) contacting and interacting said granular solid with a titanium halide, alkoxide or halo-alkoxide, with an atomic ratio between the magnesium, in said granular solid, and the titanium, in said titanium compound, of 0.01:1 to 60:1.
Dependencies are inferred from the claim text.