HIGH PERFORMANCE ZIEGLER-NATTA CATALYST SYSTEMS, PROCESSES FOR PRODUCING SUCH CATALYST SYSTEMS, AND USE THEREOF
    6.
    发明公开
    HIGH PERFORMANCE ZIEGLER-NATTA CATALYST SYSTEMS, PROCESSES FOR PRODUCING SUCH CATALYST SYSTEMS, AND USE THEREOF 审中-公开
    强大的齐格勒 - 纳塔催化剂体系,用于制备这种催化剂体系及其用途

    公开(公告)号:EP3004188A1

    公开(公告)日:2016-04-13

    申请号:EP14729872.3

    申请日:2014-05-20

    摘要: A catalyst system for the polymerization of olefins may include a first solid catalytic component and a second solid catalytic component. The first solid catalytic component may include: a spherical MgCl
    2 -xROH support; a group 4-8 transition metal; and a diether internal electron donor. The second solid catalytic component may include: a spherical MgCl
    2 -xROH support; a group 4-8 transition metal; and a diether internal electron donor. The first solid catalytic component produces a propylene homopolymer having a Xylene Solubles (XS) value of greater than 2 wt%; and the second solid catalytic component produces a propylene homopolymer having a XS value of less than 2 wt%. The second catalytic component may act as an external electron donor during use, and embodiments herein do not require use of any additional external electron donors to control polymerization and reliably vary the properties of the resulting polymer.

    PROCESS FOR RECYCLING OF FREE LIGAND FROM THEIR CORRESPONDING METALLOCENE COMPLEXES
    8.
    发明公开
    PROCESS FOR RECYCLING OF FREE LIGAND FROM THEIR CORRESPONDING METALLOCENE COMPLEXES 审中-公开
    维尔格伦·恩·维德金永宁

    公开(公告)号:EP2573091A1

    公开(公告)日:2013-03-27

    申请号:EP11182524.6

    申请日:2011-09-23

    IPC分类号: C07F7/08 C07F17/00 C08F4/6592

    摘要: An efficient and economical process to recover ligands from metallocene complexes, where the free ligand recovered may be recycled to produce additional metallocene and metallocene complexes. The process comprises contacting a metallocene complex comprising a ligand with a protic composition under reaction conditions to decompose the metallocene complex and form a reaction product comprising free ligand and inorganic decomposition products; and recovering the free ligand from the reaction product

    摘要翻译: 从金属茂络合物中回收配体的有效和经济的方法,其中回收的游离配体可以被再循环以产生另外的金属茂和茂金属络合物。 该方法包括在反应条件下使包含配体的金属茂络合物与质子组合物接触以分解茂金属络合物并形成包含游离配位体和无机分解产物的反应产物; 并从反应产物中回收游离配体