| 摘要 |
<p>PCT No. PCT/FI87/00078 Sec. 371 Date Feb. 5, 1988 Sec. 102(e) Date Feb. 5, 1988 PCT Filed Jun. 9, 1987 PCT Pub. No. WO87/07620 PCT Pub. Date Dec. 17, 1987.The invention concerns a procedure for manufacturing solid catalyst components for catalysts serving polymerization of alpha-olefines, having a solid carrier substance containing an organic or inorganic magnesium compound and treated with a titanium halide and optionally with an electron donor compound. The magnesium compound or the mixture of magnesium compound and electron donor compounds is sprayed in molten state into a chamber or volume which has been cooled to a temperature at which the catalyst component will solidify from the melt in the form of particles with generally spherical shape, without any substantial evaporation of solvents.</p> |
