CONTINUOUS ETHYLENE TETRAMERIZATION PROCESS
    8.
    发明申请
    CONTINUOUS ETHYLENE TETRAMERIZATION PROCESS 有权
    连续乙烯四面体方法

    公开(公告)号:US20150284303A1

    公开(公告)日:2015-10-08

    申请号:US14443838

    申请日:2013-12-04

    IPC分类号: C07C2/34

    摘要: A continuous flow process for the oligomerization of ethylene using a chromium catalyst having a phosphorus-nitrogen-phosphorus (“P—N—P”) ligand provides high selectivity to the desired tetramer (1-octene) with reduced production of coproduct C10+ oligomers. Prior art processes that maximize catalyst activity have provided comparatively poor product selectivity. In particular, the production of larger amounts of C10+ oligomers have been observed under conditions that maximize activity. The present process resolves this problem through the use of a combination of low catalyst concentration and by limiting the octene concentration in the reactor.

    摘要翻译: 使用具有磷 - 氮 - 磷(“P-N-P”)配体的铬催化剂使乙烯低聚的连续流动方法对所需的四聚体(1-辛烯)提供了高选择性,同时产生了副产物C10 +低聚物。 使催化剂活性最大化的现有技术方法提供了较差的产物选择性。 特别地,在活性最大化的条件下观察到产生较大量的C10 +低聚物。 本方法通过使用低催化剂浓度和限制反应器中辛烯浓度的组合来解决这个问题。

    Catalyst for high temperature olefin polymerization
    9.
    发明授权
    Catalyst for high temperature olefin polymerization 有权
    用于高温烯烃聚合的催化剂

    公开(公告)号:US08907029B2

    公开(公告)日:2014-12-09

    申请号:US13582290

    申请日:2011-03-08

    摘要: An olefin polymerization catalyst is prepared by (a) in a diluent, combining a diorganomagnesium compound with less than 2 molar equivalents of a first source of chloride to produce a “chloride deficient” magnesium chloride support; (b) without isolating any solids, adding a second source of chloride which reduces the amount of soluble un-reacted diorganomagnesium compound present; (c) without isolating any solids present, adding a tetravalent titanium species and; (d) adding an activator. The catalyst is active for solution polymerization of olefins.

    摘要翻译: 通过(a)在稀释剂中制备烯烃聚合催化剂,将二有机镁化合物与少于2摩尔当量的第一氯化物源组合以产生“氯化物缺乏”氯化镁载体; (b)不分离任何固体,加入第二氯化物源,减少可溶性未反应的二有机镁化合物的存在量; (c)不分离任何存在的固体,加入四价钛物质; (d)加入活化剂。 该催化剂对烯烃的溶液聚合是有活性的。

    CATALYST FOR HIGH TEMPERATURE OLEFIN POLYMERIZATION
    10.
    发明申请
    CATALYST FOR HIGH TEMPERATURE OLEFIN POLYMERIZATION 有权
    催化剂用于高温烯烃聚合

    公开(公告)号:US20130012672A1

    公开(公告)日:2013-01-10

    申请号:US13582290

    申请日:2011-03-08

    IPC分类号: C08F4/654 C08F4/16

    摘要: An olefin polymerization catalyst is prepared by (a) in a diluent, combining a diorganomagnesium compound with less than 2 molar equivalents of a first source of chloride to produce a “chloride deficient” magnesium chloride support; (b) without isolating any solids, adding a second source of chloride which reduces the amount of soluble un-reacted diorganomagnesium compound present; (c) without isolating any solids present, adding a tetravalent titanium species and; (d) adding an activator. The catalyst is active for solution polymerization of olefins.

    摘要翻译: 通过(a)在稀释剂中制备烯烃聚合催化剂,将二有机镁化合物与少于2摩尔当量的第一氯化物源组合以产生氯化物不足的氯化镁载体; (b)不分离任何固体,加入第二氯化物源,减少可溶性未反应的二有机镁化合物的存在量; (c)不分离任何存在的固体,加入四价钛物质; (d)加入活化剂。 该催化剂对烯烃的溶液聚合是有活性的。