| abstract |
The present invention provides a catalyst component for olefin polymerization, comprising at least one diol ester type electron donor compound (a) and at least one diether type electron donor compound (b), wherein the molar ratio of a to b is 0.55 to 50. Initiate. The invention also discloses a process for the preparation of said catalyst component, an olefin polymerization process using said catalyst which can be used for the production of a catalyst comprising said catalyst component, in particular a polypropylene having a low ash content. |