Process for the preparation of polypropylene with improved productivity
    2.
    发明授权
    Process for the preparation of polypropylene with improved productivity 有权
    生产率提高的聚丙烯制备方法

    公开(公告)号:US09512246B2

    公开(公告)日:2016-12-06

    申请号:US14418808

    申请日:2013-07-30

    申请人: Borealis AG

    摘要: A process for the preparation of a polypropylene in a sequential polymerization process including a pre-polymerization reactor and at least two polymerization reactors connected in series. The polymerization in the at least two polymerization reactors takes place in the presence of a Ziegler-Natta catalyst. The Ziegler-Natta catalyst includes (a) a pro-catalyst that has a compound of a transition metal, a compound of a metal which metal is selected from one of the groups 1 to 3 of the periodic table (IUPAC), and an internal electron donor, (b) a co-catalyst, and (c) an external donor. The Ziegler-Natta catalyst is present in the pre-polymerization reactor. Ethylene and propylene are fed to the pre-polymerization reactor in a feed rate ratio of 0.5 to 10.0 g/kg.

    摘要翻译: 一种在顺序聚合方法中制备聚丙烯的方法,包括预聚合反应器和至少两个串联的聚合反应器。 在至少两个聚合反应器中的聚合在齐格勒 - 纳塔催化剂存在下进行。 齐格勒 - 纳塔催化剂包括(a)具有过渡金属化合物的前催化剂,金属选自元素周期表第1至3族之一的金属化合物(IUPAC)和内部 电子给体,(b)助催化剂,和(c)外部供体。 齐格勒 - 纳塔催化剂存在于预聚合反应器中。 乙烯和丙烯以0.5至10.0g / kg的进料速率比进料到预聚合反应器中。

    PROCESS FOR THE PREPARATION OF POLYPROPYLENE WITH IMPROVED PRODUCTIVITY
    4.
    发明申请
    PROCESS FOR THE PREPARATION OF POLYPROPYLENE WITH IMPROVED PRODUCTIVITY 有权
    制备具有改善生产力的聚丙烯的方法

    公开(公告)号:US20150152203A1

    公开(公告)日:2015-06-04

    申请号:US14416121

    申请日:2013-07-30

    申请人: Borealis AG

    IPC分类号: C08F110/06

    摘要: A process for the preparation of a polypropylene in a sequential polymerization process including at least two polymerization reactors connected in series. The polymerization takes place in the presence of a Ziegler-Natta catalyst, and said Ziegler-Natta catalyst includes (a) a pro-catalyst that has a compound of a transition metal, a compound of a metal which metal is selected from one of the groups 1 to 3 of the periodic table (IUPAC), and an internal electron donor, (b) a co-catalyst, and (c) an external donor. The ratio of catalyst feed rate to propylene feed rate in the first polymerization reactor is 1.0 to 4.5 q/t.

    摘要翻译: 一种在顺序聚合方法中制备聚丙烯的方法,包括至少两个串联连接的聚合反应器。 聚合在齐格勒 - 纳塔催化剂存在下进行,所述齐格勒 - 纳塔催化剂包括(a)具有过渡金属化合物的前催化剂,金属的化合物,其金属选自 元素周期表(IUPAC)的1至3族,以及内部电子给体,(b)助催化剂和(c)外部给体。 第一聚合反应器中催化剂进料速率与丙烯进料速率的比为1.0-4.5q / t。

    PROCESS FOR THE PREPARATION OF POLYPROPYLENE WITH IMPROVED PRODUCTIVITY
    9.
    发明申请
    PROCESS FOR THE PREPARATION OF POLYPROPYLENE WITH IMPROVED PRODUCTIVITY 有权
    制备具有改善生产力的聚丙烯的方法

    公开(公告)号:US20150191556A1

    公开(公告)日:2015-07-09

    申请号:US14418808

    申请日:2013-07-30

    申请人: BOREALIS AG

    IPC分类号: C08F10/06

    摘要: A process for the preparation of a polypropylene in a sequential polymerization process including a pre-polymerization reactor and at least two polymerization reactors connected in series. The polymerization in the at least two polymerization reactors takes place in the presence of a Ziegler-Natta catalyst. The Ziegler-Natta catalyst includes (a) a pro-catalyst that has a compound of a transition metal, a compound of a metal which metal is selected from one of the groups 1 to 3 of the periodic table (IUPAC), and an internal electron donor, (b) a co-catalyst, and (c) an external donor. The Ziegler-Natta catalyst is present in the pre-polymerization reactor. Ethylene and propylene are fed to the pre-polymerization reactor in a feed rate ratio of 0.5 to 10.0 g/kg.

    摘要翻译: 一种在顺序聚合方法中制备聚丙烯的方法,包括预聚合反应器和至少两个串联的聚合反应器。 在至少两个聚合反应器中的聚合在齐格勒 - 纳塔催化剂存在下进行。 齐格勒 - 纳塔催化剂包括(a)具有过渡金属化合物的前催化剂,金属选自元素周期表第1至3族之一的金属化合物(IUPAC)和内部 电子给体,(b)助催化剂,和(c)外部供体。 齐格勒 - 纳塔催化剂存在于预聚合反应器中。 乙烯和丙烯以0.5至10.0g / kg的进料速率比进料到预聚合反应器中。