| 摘要 |
<p>A magnesium compound which is prepared by reacting metallic magnesium having a sphericity (S) of less than 4.00, the sphericity being represented by the following formula (I): S = (L1/L2)3 ····· (I) , wherein L1 represents the maximum diameter of projection views of metallic magnesium particles determined by the photographing with a scanning electron microscope followed by an image processing and L2 represents the diameter of a circle having an area equal to that of the projection view of the metallic magnesium particle, an alcohol, and a halogen and/or a halogen-containing compound in an amount corresponding to the amount of a halogen atom not less than 0.0001 gram atom relative to one gram atom of the metallic magnesium; a solid catalyst component prepared from the magnesium compound and a titanium compound; and a catalyst for olefin polymerization prepared by using the solid catalyst component.</p> |
