| 摘要 |
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.
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