PROCESS FOR THE PRODUCTION OF MGCL2, MGO OF RESTRICTED GRANULOMETRIC SPECTRUM. APPLICATION OF SAID COMPOUND AS SUPPORT FOR THE CATALYTIC COMPONENT OF OLEFIN POLYMERIZATION

摘要

the invention relates to a process for the manufacture of(mgcl2, mgo), narrow particle size distributionhydrated mgcl2 treatment in an alcohol followed by athe heat treatment after the partial removal of the alcoholcharacterized in that the hydrated mgcl2 is suspendedin alcohol, the alcohol on hydrated mgcl2 molar ratiois lower than the solubility of these two bodiesthe temperature of the suspension. the mgcl2, mgo may beas a carrier in the catalytic componentspolymerization of olefins. the invention also relates toa catalyst component for polymerization of olefinscharacterized in that it is prepared by the combination oftransition metal with mgcl2, mgo obtained by settingthe process described above, as well as aa polyolefin obtained by polymerization of olefin inthe presence of a catalytic component such as definedpreviously.