公开(公告)号：EP2709758A2

公开(公告)日：2014-03-26

申请号：EP12756824.4

申请日：2012-05-15

申请人： Reliance Industries Limited

发明人： SINGH, Saurabh ,  GUPTA, Virendrakumar ,  SINGALA, Kamlesh, J. ,  PATEL, Vallabhbhai, S.

IPC分类号： B01J31/02 ,  B01J27/138 ,  B01J35/08 ,  C08F10/00

CPC分类号： C08F4/76 ,  B01J27/138 ,  B01J31/02 ,  B01J35/08 ,  C08F10/00 ,  C08F4/651 ,  C08F4/6543 ,  C08F4/6545

摘要： A high activity polyolefin catalyst system comprising titanium containing pro- catalyst component, a co-catalyst component and an external electron donor compound is provided wherein the high activity polyolefin catalyst system is having controlled morphology and less fines. The present invention is more directed to provide a method for the preparation of titanium containing pro- catalyst component from solid spherical shaped magnesium containing pro- catalyst precursor wherein the spherical morphology of the pro-catalyst precursor is maintained through out the reaction in order to achieve titanium-containing pro- catalyst having controlled morphology. The polymerization of lower olefins in the presence of high activity polyolefin catalyst having controlled morphology provides polyolefins with minimal polymer fines.

摘要翻译： 提供了一种高活性聚烯烃催化剂体系，其包含含钛催化剂组分，助催化剂组分和外电子给体化合物，其中高活性聚烯烃催化剂体系具有受控的形态和较少的细粉。 本发明的至少一个实施方案更针对于提供一种从固体球形的含镁催化剂前体制备含钛原催化剂组分的方法，其中前催化剂前体的球形形态保持在 反应以实现具有受控形态的含钛催化剂。 在具有受控形态的高活性聚烯烃催化剂存在下，低级烯烃的聚合提供具有最小聚合物细粉的聚烯烃。