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    Oligomerization Reactions Using Aluminoxanes
    175.
    发明申请
    Oligomerization Reactions Using Aluminoxanes 审中-公开

    公开(公告)号：US20190092709A1

    公开(公告)日：2019-03-28

    申请号：US15719107

    申请日：2017-09-28

    申请人： Chevron Phillips Chemical Company LP

    发明人： Steven M. BISCHOF ,  Jared T. FERN ,  Uriah J. KILGORE ,  Orson L. SYDORA

    IPC分类号： C07C2/36 ,  B01J31/24 ,  B01J31/14

    CPC分类号： C07C2/36 ,  B01J31/143 ,  B01J31/189 ,  B01J31/2438 ,  B01J2231/20 ,  B01J2531/62 ,  C07C2531/14 ,  C07C2531/24

    摘要： Disclosed are processes for oligomerizing ethylene by contacting a catalyst system, ethylene, and optionally hydrogen to form an oligomer product in a reaction zone, wherein the catalyst system comprises: a chromium component comprising an N2-phosphinyl amidine chromium compound complex, an N2-phosphinyl formamidine chromium compound complex, and/or an N2-phosphinyl guanidine chromium compound complex, and an aluminoxane; wherein the aluminoxane is characterized by 400 MHz proton NMR in which: (a) the ratio of peaks found in the range of −0.86 ppm to −0.74 ppm to peaks found in a range of −0.03 ppm to 0.07 ppm is less than or equal to 2.8:1; (b) the ratio of peaks found in the range of −0.03 ppm to 0.025 ppm to peaks found in a range of 0.025 ppm to 0.07 ppm is less than or equal to 15:1; and/or (c) the ratio of peaks found in a range of −0.86 ppm to −0.78 ppm to peaks found in the range of −0.78 ppm to −0.74 ppm is less than or equal to 6.5:1.

    Production of Olefin Dimers
    176.
    发明申请
    Production of Olefin Dimers 审中-公开

    公开(公告)号：US20190002366A1

    公开(公告)日：2019-01-03

    申请号：US15948323

    申请日：2018-04-09

    申请人： ExxonMobil Chemical Patents Inc.

    发明人： Meagan E. Evans ,  Crisita Carmen H. Atienza ,  Jo Ann M. Canich ,  John R. Hagadorn ,  David A. Cano ,  Gregory S. Day ,  Patrick C. Chen

    IPC分类号： C07C2/32 ,  B01J31/22

    CPC分类号： C07C2/32 ,  B01J31/223 ,  B01J31/226 ,  B01J2231/20 ,  B01J2531/48 ,  B01J2531/49 ,  B01J2540/40 ,  C07C2531/14 ,  C07C2531/22 ,  C10G50/00

    摘要： A process for producing alpha-olefin dimers comprises contacting, at a temperature of 80° C. or more, a feedstock comprising at least one C8+ (linear) alpha-olefin with a catalyst system comprising activator and one or more catalyst compounds represented by the formula: where M is a Group 4 metal; n is 1, 2, or 3; RA is hydrogen or a C1 to C10 alkyl; each of R1, R2, R3, R4, R5, R6, R7, and R8 is independently selected from hydrogen and C1 to C10 alkyl; each X is independently selected from the group consisting of hydrocarbyl radicals having from 1 to 20 carbon atoms, hydrides, amides, alkoxides, sulfides, phosphides, halides, and a combination thereof, (two X's may form a part of a fused ring or a ring system), the contacting being conducted under conditions effective to oligomerize at least part of C8+ alpha-olefin to produce an oligomerized product containing at least 30 wt % of the alpha-olefin dimer and at least 80 mol % of vinylidene unsaturation, where the conversion of the alpha olefin is at least 10 wt %, based upon the weight of the alpha olefin monomer entering the reactor and the weight of dimer produced.