SOLID TITANIUM CATALYST COMPONENT FOR ETHYLENE POLYMERIZATION, ETHYLENE POLYMERIZATION CATALYST AND ETHYLENE POLYMERIZATION METHOD
申请人:Mitsui Chemicals, Inc.
公开号:EP2264075A1
公开(公告)日:2010-12-22
Provided are a solid titanium catalyst component for ethylene polymerization which can polymerize ethylene at a high activity and which can provide an ethylene polymer having an excellent particle property, an ethylene polymerization catalyst and an ethylene polymerization method in which the catalyst is used.
The solid titanium catalyst component (I) for ethylene polymerization according to the present invention is obtained by bringing a liquid magnesium compound (A) including a magnesium compound, an electron donor (a) having 1 to 5 carbon atoms and an electron donor (b) having 6 to 30 carbon atoms into contact with a liquid titanium compound (C) under the presence of an electron donor (B) and includes titanium, magnesium and a halogen. The ethylene polymerization catalyst of the present invention includes the component (I) and an organic metal compound catalyst component (II). Further, the ethylene polymerization method of the present invention is a method for polymerizing ethylene under the presence of the catalyst.
本发明提供了一种乙烯聚合用固体钛催化剂组分、乙烯聚合催化剂和使用该催化剂的乙烯聚合方法,该乙烯聚合用固体钛催化剂组分能以高活性聚合乙烯,并能提供具有优异颗粒性能的乙烯聚合物。
根据本发明的乙烯聚合用固体钛催化剂组分(I)是在电子供体(B)存在的情况下,将包括镁化合物、具有 1 至 5 个碳原子的电子供体(a)和具有 6 至 30 个碳原子的电子供体(b)的液态镁化合物(A)与液态钛化合物(C)接触而得到的,液态钛化合物(C)包括钛、镁和卤素。本发明的乙烯聚合催化剂包括组分(I)和有机金属化合物催化剂组分(II)。此外,本发明的乙烯聚合方法是一种在催化剂存在下聚合乙烯的方法。