HIGHLY ACTIVE ZIEGLER-NATTA CATALYST FOR POLYMERISATION OF ETHYLENE WITH GOOD SENSITIVITY TOWARDS HYDROGEN Russian patent published in 2009 - IPC C08F110/02 C08F4/654 C08F4/02 

FIELD: chemistry.

SUBSTANCE: description is given of a catalyst system for polymerisation of ethylene, which contains: a solid component of titanium catalyst with diametre of approximately 5 to 60 microns (per 50% volume), wherein the solid component of titanium catalyst contains a titanium compound and a carrier, made from a compound of magnesium, alkylsilicate and monoester; and an organoaluminium compound with at least one aluminium-carbon bond. Also described is a solid component of titanium catalyst for producing polyethylene, which contains: a titanium compound; a carrier made from a compound of magnesium, alkylsilicate and monoester, a solid component of titanium catalyst with diametre of approximately 5 to 60 microns (per 50% volume). A method is also described for making a catalyst carrier for the said catalyst system, as well as a method of producing polyethylene, which involves polymerisation of ethylene in the presence of hydrogen and the catalyst system described above.

EFFECT: obtaining a catalyst carrier with considerable homogeneity and relatively large particles, with minimal fraction of fine particles, obtaining a solid component of titanium catalyst with high catalytic activity.

10 cl, 1 dwg, 1 tbl, 6 ex