Supported catalyst for the (co)polymerization of ethylene

Details Supported catalyst for the (co)polymerization of ethylene Supported catalyst for the (co)polymerization of ethylene

C - Chemistry, Metallurgy

08

F

C08F 4/642 (2006.01) C08F 10/02 (2006.01)

Patent

CA 2073644

SUPPORTED CATALYST FOR THE (CO)POLYMERIZATION OF ETHYLENE A solid component of catalyst for the (co)polymerization of ethylene is composed of a silica support and of a catalytically active part containing titanium, magnesium, chlorine and alkoxy groups, and is obtained by: (1) activating a silica support by contact with a solution of magnesium dialkyl, or magnesium alkyl chloride, in a liquid, aliphatic hydrocarbon solvent; (ii) impregnating the activated silica with a solution, in a liquid aliphatic or aromatic ester, of titanium tetrachloride and tetra-alkoxide in equimolecular or almost equimolecular quantities, and magnesium chloride; and (iii) treating the solid obtained in step (ii) with a proportioned quantity of aluminium alkyl sesquichloride.

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