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    PROCESS FOR PRODUCING LOW POLYMER OF ALPHA-OLEFIN
    1.
    发明公开
    PROCESS FOR PRODUCING LOW POLYMER OF ALPHA-OLEFIN 有权
    VERFAHREN ZUR PRODUKTION EINES NIEDRIGEN聚合物VON ALPHA-OLEFIN

    公开(公告)号：EP1362837A1

    公开(公告)日：2003-11-19

    申请号：EP02711407.3

    申请日：2002-02-08

    申请人： IDEMITSU PETROCHEMICAL CO., LTD.

    发明人： KOBAYASHI, Ryoichi ,  KURA, Shigeki

    IPC分类号： C07C2/10 ,  C07C11/02

    CPC分类号： C07C2/30 ,  C07C2527/135 ,  C07C2531/14 ,  C07C11/02

    摘要： There is disclosed a process for producing an α -olefin oligomer which comprises subjecting an α -olefin to oligomerization reaction in an organic solvent in the presence of a Ziegler based catalyst, wherein the oligomerization reaction is carried out through multi-stage reaction steps, and the α -olefin is supplied to each of the reaction steps. It is made possible by the above production process to produce highly pure α -olefin oligomer free from an impurity.

    摘要翻译： 公开了一种制备α-烯烃低聚物的方法，该方法包括在齐格勒型催化剂存在下，在有机溶剂中使α-烯烃进行低聚反应，其中低聚反应通过多级反应步骤进行，和 将α-烯烃供应到每个反应步骤。 通过上述制备方法可以生产不含杂质的高纯度α-烯烃低聚物。

    PROCESS FOR PRODUCING LOW POLYMER OF a-OLEFIN
    3.
    发明公开
    PROCESS FOR PRODUCING LOW POLYMER OF a-OLEFIN 审中-公开
    VERFAHREN ZUR HERSTELLUNG VON a-OLEFIN-NIEDERPOLYMER

    公开(公告)号：EP1464655A1

    公开(公告)日：2004-10-06

    申请号：EP02767847.3

    申请日：2002-08-21

    申请人： IDEMITSU PETROCHEMICAL CO., LTD.

    发明人： KOBAYASHI, Ryoichi ,  KURA, Shigeki

    IPC分类号： C08F2/00 ,  C08F2/01 ,  C08F10/00 ,  C10G50/00

    CPC分类号： C08F2/00 ,  C08F10/00 ,  C08F10/02 ,  C08F110/02 ,  Y10S585/901 ,  C08F2/06 ,  C08F2500/02

    摘要： A process for producing an α·olefin oligomer by oligomerization of an α·olefin in a presence of a Ziegler-based catalyst, the process comprising introducing at least a portion of a reaction product which is taken out of a reactor and has a temperature of 115°C or higher into an external heat exchanger, cooling the introduced reaction product, maintaining an oligomerization solution taken out of the external heat exchanger at a temperature of 110°C or higher and returning at least a portion of the oligomerization solution to the reactor. In the production of an α-olefin oligomer, precipitation and adhesion of polymers at the inside of manufacturing apparatuses such as the external heat exchanger and troubles caused thereby can be prevented and a stable continuous operation can be continued for a long time.

    摘要翻译： 一种在齐格勒基催化剂存在下通过α-烯烃的低聚制备α-烯烃低聚物的方法，该方法包括将至少一部分从反应器中取出的反应产物引入并且具有 115℃以上进入外部热交换器，冷却引入的反应产物，将从外部热交换器取出的低聚溶液在110℃以上的温度下保持，并将至少一部分低聚溶液返回到反应器 。 在α-烯烃低聚物的制造中，可以防止诸如外部热交换器的制造装置内部的聚合物的沉淀和粘附以及由此引起的故障，并且可以长时间持续稳定的连续操作。

    PROCESS FOR PRODUCING LOW POLYMER OF ETHYLENE
    4.
    发明公开
    PROCESS FOR PRODUCING LOW POLYMER OF ETHYLENE 审中-公开
    VERFAHREN ZUR HERSTELLUNG EINES NIEDRIGEN聚合物VON ETHYLEN

    公开(公告)号：EP1247790A1

    公开(公告)日：2002-10-09

    申请号：EP01272282.3

    申请日：2001-12-21

    申请人： IDEMITSU PETROCHEMICAL CO., LTD.

    发明人： KOBAYASHI, Ryoichi ,  KURA, Shigeki

    IPC分类号： C07C2/08 ,  C07C7/04 ,  C07C11/02

    CPC分类号： C07C2/30 ,  C07C2531/12 ,  Y02P20/584

    摘要： There is disclosed a process for producing an ethylenic oligomer which comprises subjecting ethylene to oligomerization reaction in an organic solvent in the presence of a Ziegler based catalyst, and recyclingly using for the oligomerization reaction, the organic solvent separated by distillng the resultant oligomerization reaction product, wherein the water concentration in the oligomerization reaction system is at most 8 ppm by weight, or the concentration of olefins which have at least 3 carbon atoms and which are contained in the organic solvent to be recycled in the oligomerization reaction system is at most 2% by weight. The process of the present invention can maintain the catalytic activity of the catalyst at a high level.

    摘要翻译： 乙烯的低重量聚合物的制备包括使用齐格勒催化剂在有机溶剂中低聚乙烯，并将产物蒸馏到循环溶剂中，其中反应体系中的水浓度为8ppm或更低。 还包括独立权利要求，和（2）类似的方法，其中具有3C或更高的烯烃的浓度为2重量％以下。