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Способ получения катализатора для полимеризации пропилена, включающий восстановление четыреххлористого титана алюминийорганическими соединениями в присутствии эфира и активацию полученного треххлористого титана нагреванием, отличающийся тем, что, с целью улучшения гранулометрического состава катализатора, стадию восстановления проводят при (-3)-(+20)C в присутствии 0,5-2 мас.% предварительно окисленного порошка полипропилена в качестве носителя и после активации проводят дополнительно обработку суспензии катализатора пропиленом.A method of producing a catalyst for the polymerization of propylene, including the reduction of titanium tetrachloride with organoaluminum compounds in the presence of ether and activation of the obtained titanium trichloride by heating, characterized in that, in order to improve the particle size distribution of the catalyst, the reduction stage is carried out in the presence of 0.5-2 wt.% pre-oxidized polypropylene powder as a carrier and after activation, the catalyst suspension is additionally treated with propylene.
SU3976187/04A1985-11-141985-11-14
METHOD FOR PRODUCING A CATALYST FOR PROPYLENE POLYMERIZATION
SU1365433A1
(en)
Porous magnesium chloride particles, process for their preparation and catalyst composition containing them, and polyolefins obtained from this catalyst composition
PROCESS FOR PRODUCING TITANIUM TRIHALOGENIDE SOLID PARTICLES, CATALYST BASED ON SAID PARTICLES AND ITS APPLICATION TO THE POLYMERIZATION OF ALPHA-OLEFINS
Process for the preparation of a particulate material comprising titanium trichloride suitable for use in the stereospecific polymerisation of alpha-olefins