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发明授权
CN105481999B 用于乙烯均聚合或共聚合的催化剂组分、催化剂及其制备方法 有权

用于乙烯均聚合或共聚合的催化剂组分、催化剂及其制备方法
摘要：
本发明提供了一种用于乙烯聚合的催化剂组分，包括以下组分的反应物：(1)镁复合物；(2)有机醇化合物；(3)含钛化合物；(4)内酯类化合物；(5)至少一种无活泼氢有机硅化合物。该催化剂具有催化活性较高、聚合物堆积密度高，聚合物粒度集中，细粉少的特点，适用于乙烯的淤浆聚合工艺和气相聚合工艺中。
摘要（英）：

The invention provides a catalyst component used for ethylene polymerization. The catalyst component comprises reactants with the following components: (1) a magnesium compound, (2) an organic alcohol compound, (3) a titanium-containing compound, (4) a lactone compound, (5) at least one organosilicon compound free from labile hydrogen. The catalyst has the characteristics of relatively high catalytic activity, high polymer bulk density, centralized polymer particle size, and less fine powder. The catalyst is suitable to be used in ethylene slurry polymerization processes and gas phase polymerization processes.

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