公开(公告)号：US20170349677A1

公开(公告)日：2017-12-07

申请号：US15535902

申请日：2015-11-25

Applicant: East China University Of Science And Technology

Inventor： Boping LIU ,  Jingwen WANG ,  Ruihua CHENG ,  Xuelian HE ,  Zhen LIU ,  Ning ZHAO

IPC: C08F10/02

CPC classification number: C08F10/02 ,  C08F110/02 ,  C08F210/16 ,  C08F4/685 ,  C08F4/646 ,  C08F4/02 ,  C08F210/14

Abstract: The present invention relates to a supported polymetal olefin polymerization catalyst, comprising a porous support, a magnesium-containing support component, a transition metal titanium component supported on the porous support, and further comprising at least one non-magnesium metal component supported on the porous support. Further provided is a preparation method and a use of the supported polymetal olefin polymerization catalyst. An efficient composite support supported polymetal Ziegler-Natta catalyst is provided in the present invention, wherein a porous support, a soluble magnesium compound, and a soluble non-magnesium metal compound are used as raw materials. The supporting of titanium is achieved while a composite support containing magnesium and non-magnesium metal components is formed in situ in the surface of the porous support. The present invention has the advantage of a simple preparation method, a low cost, a controllability of morphology, properties of the catalyst, etc. Comparing the provided catalyst with the same type of magnesium/titanium catalyst free of non-magnesium metal components, the catalytic performance such as polymerzation activity, hydrogen regulation sensitivity and copolymerization performance are significantly improved.