METHOD OF PREPARING CATALYST AND ETHYLENE POLYMERIZATION PROCESS UTILIZING THIS CATALYST Russian patent published in 2008 - IPC B01J37/04 B01J32/00 C08F10/02 C08F2/18 C08F4/64 C08F4/654 C08F4/656 

FIELD: polymerization catalysts.

SUBSTANCE: invention relates to a method for preparing supported titanium -manganese catalyst for synthesis of super-high molecular weight polyethylene via suspension ethylene polymerization process in hydrocarbon solvent. Titanium-containing catalyst supported by magnesium-containing carrier is prepared by reaction of organomagnesium compound Mg(C₆H₅)2•nMgCl₂•mR₂O, where n=0.37-0.7, m=2, R₂0 represents ether wherein R is i-amyl or n-butyl, with a silicon compound, namely product obtained by reaction of compound R'kSiCl_4-k (R' is methyl or phenyl and k=0-1) with silicon tetraethoxide Si(OEt)₄ at molar ratio R'kSiCl_4-k/Si(OEt)₄ = 6 to 40. Ethylene polymerization process in presence of above-defined catalyst in combination with co-catalyst is also described, wherein obtained super-high molecular weight polyethylene has loose density ≥ 0.39 g/cc.

EFFECT: increased molecular weight and loose density of polyethylene.

4 cl, 1 tbl, 8 ex