Catalysts for olefin polymerization which consist essentially of a transition metal compound, a modified clay compound and an organic aluminum compound, wherein the modified clay compound comprises a reaction product of a clay mineral and a proton acid salt of a specific amine compound, as well as a method of polymerizing olefins using such catalysts. It is possible thereby to obtain olefin polymers with high productivity and low ash content.
                            烯烃聚合催化剂,主要由过渡
金属化合物、改性粘土化合物和
有机铝化合物组成,其中改性粘土化合物包括粘土矿物和特定胺化合物的质子酸盐的反应产物,以及使用这种催化剂聚合烯烃的方法。由此可以获得生产率高、灰分含量低的烯烃聚合物。