METHOD OF PREPARING CATALYST AND METHOD OF PREPARING AGENT REDUCING HYDROD YNAMIC RESISTANCE BASED ON POLYHEXENE PREPARED USING THIS CATALYST Russian patent published in 2004 - IPC

Abstract RU 2230074 C1

FIELD: polymer production. SUBSTANCE: preparation of catalyst comprises preparing magnesium-containing carrier followed by interaction of resulting carrier with titanium tetrachloride and alkylaromatic ether, wherein magnesium-containing carrier is obtained in two stages including reaction of magnesium metal with aromatic halide in presence of an ether to form slurry containing organomagnesium compound and solid phase followed by consecutive interaction of the slurry with silicon alkoxy derivative and then with an electronodonor compound, in particular alcohol or cyclic ether. Catalytic polymerization of 1-hexene is conducted at temperature between 0 to 50(r). Thus obtained polymers may find use in various areas, in particular as agents reducing hydrodynamic resistance, for example when pumping oil through pipeline. EFFECT: simplified catalyst preparation procedure, increased its activity, and increased molecular weight of poly-olefin obtained at elevated polymerization temperature. 4 cl, 2 tbl, 12 ex

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RU 2 230 074 C1

Authors

Zakharov V.A.

Sergeev S.A.

Echevskaja L.G.

Manzhaj V.N.

Dates

2004-06-10—Published

2002-12-09—Filed