Spherical catalyst components for olefin polymerization

A process of producing a spherical catalyst component for use in producing polyolefin polymers, the process comprising:

• a) dissolving a magnesium halide compound in a solvent to form a homogeneous solution, the solvent comprising an alcohol;
• b) treating the homogeneous solution with a first titanium compound in the presence of a surfactant, a supportive electron donor, and optionally a first internal electron donor to form a solid precipitate;
• c) treating the solid precipitate with a second titanium compound in the presence a second internal electron donor to form a spherical catalyst component including a magnesium halide compound base incorporating the titanium unit, the supportive electron donor, the second internal electron donor, and optionally the first electron donor;
• and
• wherein the spherical catalyst component comprises particles having a substantially spherical shape and exhibiting a D50 from about 3 μm to about 150 μm.