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    PROCATALYST FOR POLYMERIZATION OF OLEFINS COMPRISING A MONOESTER AND AN AMIDOBENZOATE INTERNAL DONOR
    27.
    发明申请
    PROCATALYST FOR POLYMERIZATION OF OLEFINS COMPRISING A MONOESTER AND AN AMIDOBENZOATE INTERNAL DONOR 审中-公开

    公开(公告)号：US20170240665A1

    公开(公告)日：2017-08-24

    申请号：US15314994

    申请日：2015-06-01

    Applicant: SABIC Global Technologies B.V.

    Inventor： Martin Alexander Zuideveld ,  Aurora Alexandra Batinas-Geurts ,  Anika Meppelder

    IPC: C08F10/06 ,  C08F10/02

    CPC classification number: C08F10/06 ,  C08F10/02 ,  C08L23/12 ,  C08F4/651 ,  C08F4/6565 ,  C08F110/06 ,  C08F2500/12 ,  C08F2500/18 ,  C08L23/16 ,  C08F210/06 ,  C08F210/16 ,  C08F4/6546

    Abstract: The present invention relates to a process for preparing a procatalyst for polymerization of olefins, comprising contacting a magnesium-containing support with a halogen-containing titanium compound, a monoester, a first internal electron donor, wherein the internal electron donor is represented by a compound represented by Formula A, for example a Fischer projection of Formula A, and optionally a second internal electron donor selected from a group consisting of diesters and diethers, Formula A said process comprising the steps of: i) contacting a butyl Grignard compound with an alkoxy- or aryloxy-containing silane compound to give a first intermediate reaction product; ii) optionally activating the first intermediate reaction product with at least one activating compound to give a second intermediate reaction product; iii) contacting the first or second intermediate reaction product, obtained respectively in step i) or ii), with a halogen-containing Ti-compound, the monoester, and said internal electron represented by a compound represented by Formula A, for example a Fischer projection of Formula A, as the first internal electron donor, and optionally the diester or di-ether as the second internal electron donor. The present invention also relates to a polymerization catalyst system comprising said procatalyst, a co-catalyst and optionally an external electron donor. Furthermore, the present invention relates to a polyolefin obtainable by the process according to the present invention and a shaped article thereof.

    Process for the polymerization of a polyolefin
    29.
    发明授权
    Process for the polymerization of a polyolefin 有权

    公开(公告)号：US11261266B2

    公开(公告)日：2022-03-01

    申请号：US16494466

    申请日：2018-03-16

    Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

    Inventor： Martin Alexander Zuideveld

    IPC: C08F2/34 ,  C08F4/52 ,  C08F4/654 ,  C08F10/06 ,  C08F2/01

    Abstract: The present invention relates to a process for the polymerization of a polyolefin, preferably polypropylene, in a polymerization reactor by contacting one or more olefins, preferably propylene, with a catalyst system in said reactor while stirring, said catalyst system comprising: * a procatalyst comprising 1) a magnesium-containing support, 2) titanium, 3) a phthalate-free internal electron donor; and 4) optionally an activator; wherein said procatalyst is obtained by the following process: i) contacting a compound R4, MgX42—, with an alkoxy- or aryloxy-containing silane compound to give a first intermediate reaction product, being a solid Mg(OR1)xX12-x, R4 is the same as R1 being a linear, branched or cyclic hydrocarbyl group independently selected from alkyl, alkenyl, aryl, aralkyl, alkoxycarbonyl or alkylaryl groups, and one or more combinations thereof; wherein said hydrocarbyl group may be substituted or unsubstituted, may contain one or more heteroatoms and preferably has between 1 and 20 carbon atoms; wherein X4 and X1 are each independently a halide; z is in a range of larger than 0 and smaller than 2, being 0

    Process of making polyolefins
    30.
    发明授权
    Process of making polyolefins 有权

    公开(公告)号：US11186653B2

    公开(公告)日：2021-11-30

    申请号：US16494462

    申请日：2018-03-14

    Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

    Inventor： Martin Alexander Zuideveld ,  Bobby Johannes Henricus Hubertus Smeets ,  Thijs Van Mulken

    IPC: C08F2/01 ,  B01J8/10 ,  C08F4/656 ,  C08F110/06

    Abstract: The present invention relates to a process for the continuous production of a polyolefin, preferably polypropylene, in a horizontal stirred bed polymerization reactor by contacting one or more olefins, preferably propylene, with a catalyst system while stirring, said catalyst system comprising: * a procatalyst comprising i) titanium; ii) a magnesium-containing support, preferably a magnesium chloride-containing support, and iii) an internal electron donor; * optionally an external electron donor; and * a co-catalyst, being a alkyl aluminum catalyst having formula AlXnR3-n, wherein each X is independently a halide or a hydride and wherein n is 0, 1 or 2, preferably 0, and wherein R is an C1-C12 alkyl group, preferably ethyl, wherein the molar ratio of aluminum (Al) from the co-catalyst to titanium (Ti) from the procatalyst (Al/Ti) is at least 75. The present invention also relates to polyolefin prepared using said process and a shaped article comprising said polyolefin. The present invention moreover relates to the use of a titanium to aluminum ratio during the Ziegler-Natta polymerization of olefins in a horizontal stirred bed reactor to reduce the energy (power) consumption in view of a situation wherein the titanium to aluminum ratio is lower.

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