| 摘要 |
FIELD: chemistry.SUBSTANCE: invention relates to field of catalyst. Described is method of obtaining catalyst for ethylene polymerization and copolimerisation of ethylene with alpha-olefins, containing vanadium compound on magnesium-containing carrier, which is obtained by interaction of solution of magnesium-organic compound with composition Mg(CH)nMgClmRO, where; n=0.37-0.7, m=2, RO is ether with R=i-Am, n-Bu with chlorinating agent phenyltrichloromethane PhCClwith mole ratio PhCCl/MgR?1.0, with further processing of carrier with alkylaluminium chloride and application of vanadium compound, with alkylaromatic ether being preliminarily introduced into magnesium organic compound at temperature 20-40°C with molar ratio alkylaromatic ether/Mg=0.05-0.2.EFFECT: obtained catalyst makes it possible to obtain polymers with wide molecular-weight distribution, increased bulk density and high output.1 tbl, 5 ex |
