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    PROCESS FOR THE PREPARATION OF SOLID CATALYST
    2.
    发明申请
    PROCESS FOR THE PREPARATION OF SOLID CATALYST 有权

    公开(公告)号：US20210179744A1

    公开(公告)日：2021-06-17

    申请号：US16771307

    申请日：2018-12-19

    Applicant: BOREALIS AG

    Inventor： Alexander REZNICHENKO ,  Noureddine AJELLAL ,  Joseph THORMAN ,  Bernard BINKS

    IPC: C08F4/6592 ,  C08F4/659 ,  C08F10/02 ,  C08F10/06 ,  C07F7/00

    Abstract: A process for the preparation of a solid olefin polymerisation catalyst or a solid olefin polymerisation catalyst component comprising the steps of: (a) forming a liquid/liquid emulsion of (i) a first organic liquid comprising at least one olefin polymerization catalyst component and (ii) an optionally halogenated hydrocarbon liquid immiscible therewith; where the first organic liquid forms the dispersed phase and the optionally halogenated hydrocarbon liquid forms the continuous phase of the liquid/liquid emulsion and wherein the dispersed phase forms droplets in the continuous phase; and (b)transforming the droplets of the dispersed phase to solid particulate particles comprising said at least one olefin polymerization catalyst component, wherein the liquid/liquid emulsion is stabilized with a solid particulate stabilizer

    CATALYSTS
    4.
    发明申请
    CATALYSTS 有权

    公开(公告)号：US20220356274A1

    公开(公告)日：2022-11-10

    申请号：US17763283

    申请日：2020-09-25

    Applicant: BOREALIS AG

    Inventor： Luigi Maria Cristoforo RESCONI ,  Simon SCHWARZENBERGER ,  Ville VIRKKUNEN ,  Alexander REZNICHENKO ,  Vyatcheslav V. IZMER ,  Dmitry S. KONONOVICH ,  Alexander Z. VOSKOBOYNIKOV

    IPC: C08F4/649 ,  C08F4/02 ,  C08F10/06 ,  C07F17/00

    Abstract: A metallocene complex of formula (I): each X is a sigma-ligand; in the group R2Si— at least one R is methyl or ethyl, and the other R is selected from methyl, ethyl, n-propyl, isopropyl, n-butyl or isobutyl, pentyl, hexyl, cyclohexyl and phenyl; each R1 independently is the same or can be different and are a CH2—R7 group, with R7 being H or linear or branched C1-6-alkyl group, C3-8 cycloalkyl group, or C6-10 aryl group; each R2 is independently a —CH═, —CY═, —CH2—, —CHY— or —CY2— group, wherein Y is a C1-6 hydrocarbyl group and where n is 2-6; each R3 and R4 are independently the same or can be different and are hydrogen, a linear or branched C1-6-alkyl group, a C7-20 arylalkyl, C7-20 alkylaryl group, C6-20 aryl group, or an —OY group, wherein Y is a is a C1-6 hydrocarbyl group; R5 is a linear or branched C1-6-alkyl group, C7-20 arylalkyl, C7-20 alkylaryl group or C6-20-aryl group; and R6 is a C(R8)3 group, with R8 being a linear or branched C1-6 alkyl group; (A) wherein at least one R3 per phenyl group and at least one R4 is not hydrogen, and wherein at least one R3 per phenyl group and at least one R4 is hydrogen; or (B) wherein one R3 is an —OY group, wherein Y is a is a C1-6 hydrocarbyl group, in 4 position of each phenyl group and the two other R3 groups are tert-butyl groups; and/or (C) wherein one R4 is an —OY group, wherein Y is a is a C1-6 hydrocarbyl group, in 4-position of the phenyl ring and the two other R4 groups are tert-butyl groups.

    CATALYST AND PREPARATION THEREOF
    10.
    发明申请
    CATALYST AND PREPARATION THEREOF 有权

    公开(公告)号：US20210079128A1

    公开(公告)日：2021-03-18

    申请号：US16771306

    申请日：2018-12-20

    Applicant: BOREALIS AG

    Inventor： Alexander REZNICHENKO ,  Jari-Jussi RUSKEENIEMI ,  Joseph THORMAN ,  Xiao Dong CHEN ,  Victor SUMERIN

    IPC: C08F4/651 ,  C08F210/16 ,  B01J4/00 ,  C08F4/654

    Abstract: The present invention relates to a process for producing of solid particulate olefin polymerisation catalyst or catalyst carrier comprising forming a solution of the catalyst or a catalyst carrier in a solvent, subjecting the solution into an atomization by spraying the solution via a capillary vibrating spray nozzle with a capillary orifice having a diameter of 5 to 100 μm generating a laminar jet of liquid, which disintegrates into liquid droplets entering into the spray-dryer, transforming the droplets with aid of a gas to solid particulate catalyst or carrier in the spray-dryer and recovering the solid particulate olefin polymerisation catalyst or carrier having particle size distribution defined by a volumetric SPAN of 0.7 or less. The invention further relates to the catalyst produced by the methods, and use thereof in olefin polymerisation process.

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