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    Ethylene separation
    1.
    发明授权
    Ethylene separation 有权
    乙烯分离

    公开(公告)号：US08410329B2

    公开(公告)日：2013-04-02

    申请号：US12905966

    申请日：2010-10-15

    申请人： John D. Hottovy ,  Ted Cymbaluk

    发明人： John D. Hottovy ,  Ted Cymbaluk

    IPC分类号： C07C7/156 ,  B01D53/14 ,  C08F110/02

    CPC分类号： C08F6/001 ,  B01D53/1487 ,  B01D53/1493 ,  B01D2252/20405 ,  B01D2252/20421 ,  B01D2252/20431 ,  B01D2252/20436 ,  B01D2252/20468 ,  B01D2252/504 ,  B01D2257/7022 ,  C08F10/02 ,  C08F110/02 ,  C08L23/04 ,  C08F2/00

    摘要： A polyethylene production process, comprising contacting ethylene and a polymerization catalyst under suitable reaction conditions to yield a polymerization product stream, separating a light gas stream from the polymerization product stream, wherein the light gas stream comprises ethane and unreacted ethylene, contacting the light gas stream with an absorption solvent system, wherein at least a portion of the ethylene from the light gas stream is absorbed by the absorption solvent system, removing unabsorbed gases of the light gas stream from contact with the absorption solvent system to form a waste gas stream, and recovering ethylene from the absorption solvent system.

    摘要翻译： 一种聚乙烯生产方法，包括在合适的反应条件下使乙烯和聚合催化剂接触以产生聚合产物流，从聚合产物流中分离轻质气体流，其中轻质气流包含乙烷和未反应的乙烯，使轻质气体流 其中吸收溶剂系统，其中来自轻质气体流的乙烯的至少一部分被吸收溶剂系统吸收，除去轻质气体流的未吸收气体与吸收溶剂系统接触以形成废气流，以及 从吸收溶剂体系中回收乙烯。

    Polyethylene film having improved barrier properties and methods of making same
    2.
    发明授权
    Polyethylene film having improved barrier properties and methods of making same 有权
    具有改进的阻挡性能的聚乙烯膜及其制造方法

    公开(公告)号：US07951881B2

    公开(公告)日：2011-05-31

    申请号：US12394651

    申请日：2009-02-27

    申请人： Ashish M. Sukhadia ,  Max P. McDaniel ,  Ted Cymbaluk ,  Rajendra K. Krishnaswamy ,  Lawrence Szmutko

    发明人： Ashish M. Sukhadia ,  Max P. McDaniel ,  Ted Cymbaluk ,  Rajendra K. Krishnaswamy ,  Lawrence Szmutko

    IPC分类号： C08F4/24

    CPC分类号： C08F110/02 ,  C08F4/24 ,  C08F2500/12 ,  C08F2500/07 ,  C08F2500/26

    摘要： A method comprising (a) providing a catalyst comprising chromium and a support having a pore volume of from about 1.7 ml/g to about 3.5 ml/g and a surface area of from about 450 m2/g to about 700 m2/g, (b) oxidizing the catalyst to form an oxidized catalyst, (c) reducing the oxidized catalyst to form an oxidized reduced catalyst, (d) oxidizing the oxidized reduced catalyst to form an activated catalyst, (e) contacting the activated catalyst with an olefin under conditions suitable to form a polyolefin, and (f) recovering the polyolefin, wherein the polyolefin has a density of greater than about 0.960 g/cc and a melt index of from about 1.3 g/10 min. to about 2.8 g/10 min.

    摘要翻译： 一种方法，包括（a）提供包含铬和具有约1.7ml / g至约3.5ml / g的孔体积和约450m 2 / g至约700m 2 / g的表面积的载体的催化剂， b）氧化催化剂以形成氧化的催化剂，（c）还原氧化的催化剂以形成氧化的还原催化剂，（d）将氧化的还原催化剂氧化以形成活化的催化剂，（e）使活化的催化剂与烯烃接触 适于形成聚烯烃的条件，和（f）回收聚烯烃，其中聚烯烃的密度大于约0.960g / cc，熔体指数为约1.3g / 10min。 至约2.8g / 10min。

    Fast Activating Catalyst
    3.
    发明申请
    Fast Activating Catalyst 有权
    快速活化催化剂

    公开(公告)号：US20090163681A1

    公开(公告)日：2009-06-25

    申请号：US11963530

    申请日：2007-12-21

    申请人： Max P. McDaniel ,  Elizabeth A. Benham ,  Ted Cymbaluk ,  George Neil

    发明人： Max P. McDaniel ,  Elizabeth A. Benham ,  Ted Cymbaluk ,  George Neil

    IPC分类号： C08F4/18

    CPC分类号： C08F10/00 ,  B01J21/08 ,  B01J23/26 ,  B01J35/1019 ,  B01J35/1047 ,  B01J35/1061 ,  B01J37/0207 ,  B01J37/036 ,  B01J37/06 ,  C08F110/02 ,  C08F4/025 ,  C08F4/78 ,  C08F2500/09 ,  C08F2500/12 ,  C08F2500/17 ,  C08F2500/07

    摘要： A method of preparing a catalyst comprising aging a silica support in an alkaline solution to produce an alkaline aged silica support, removing at least a portion of the alkaline solution from the alkaline aged silica support to produce a dried silica support, and activating the silica support to produce a catalyst composition, wherein alkaline aging lowers the surface area of the silica support to less than about 50% of the original value and wherein activation of the silica support is carried out in batches of equal to or greater than about 500 lbs for a time period of less than about 8 hours. A method of preparing a polymer comprising alkaline aging a silica support material, adding chromium to the silica support material prior to the alkaline aging, after the alkaline aging, or both to form a chromium-silica support, rapidly activating the chromium-silica support produce an activated olefin polymerization catalyst, contacting the activated olefin polymerization catalyst with at least one monomer in a reaction zone under conditions suitable to produce a polymer, and recovering the polymer.

    摘要翻译： 一种制备催化剂的方法，包括在碱性溶液中老化二氧化硅载体以产生碱性老化二氧化硅载体，从碱性老化二氧化硅载体除去至少一部分碱性溶液以产生干燥二氧化硅载体，并活化二氧化硅载体 以产生催化剂组合物，其中碱性老化将二氧化硅载体的表面积降低到小于原始值的约50％，并且其中二氧化硅载体的活化以等于或大于约500lb的批次进行，用于 时间段少于约8小时。 一种制备聚合物的方法，其包括使二氧化硅载体材料碱性老化，在碱性老化之前，碱性老化之后向二氧化硅载体材料中加入铬，或者二者形成铬二氧化硅载体，快速活化铬 - 二氧化硅载体产物 活化烯烃聚合催化剂，在适合于生产聚合物的条件下，在反应区中使活化烯烃聚合催化剂与至少一种单体接触，并回收聚合物。

    Polyethylene film having improved barrier properties and methods of making same
    6.
    发明申请
    Polyethylene film having improved barrier properties and methods of making same 有权
    具有改进的阻挡性能的聚乙烯膜及其制造方法

    公开(公告)号：US20100222527A1

    公开(公告)日：2010-09-02

    申请号：US12394651

    申请日：2009-02-27

    申请人： Ashish M. Sukhadia ,  Max P. McDaniel ,  Ted Cymbaluk ,  Rajendra K. Krishnaswamy ,  Lawrence Szmutko

    发明人： Ashish M. Sukhadia ,  Max P. McDaniel ,  Ted Cymbaluk ,  Rajendra K. Krishnaswamy ,  Lawrence Szmutko

    IPC分类号： C08F4/18 ,  C08F4/24

    CPC分类号： C08F110/02 ,  C08F4/24 ,  C08F2500/12 ,  C08F2500/07 ,  C08F2500/26

    摘要： A method comprising (a) providing a catalyst comprising chromium and a support having a pore volume of from about 1.7 ml/g to about 3.5 ml/g and a surface area of from about 450 m2/g to about 700 m2/g, (b) oxidizing the catalyst to form an oxidized catalyst, (c) reducing the oxidized catalyst to form an oxidized reduced catalyst, (d) oxidizing the oxidized reduced catalyst to form an activated catalyst, (e) contacting the activated catalyst with an olefin under conditions suitable to form a polyolefin, and (f) recovering the polyolefin, wherein the polyolefin has a density of greater than about 0.960 g/cc and a melt index of from about 1.3 g/10 min. to about 2.8 g/10 min.

    摘要翻译： 一种方法，包括（a）提供包含铬和具有约1.7ml / g至约3.5ml / g的孔体积和约450m 2 / g至约700m 2 / g的表面积的载体的催化剂， b）氧化催化剂以形成氧化的催化剂，（c）还原氧化的催化剂以形成氧化的还原催化剂，（d）将氧化的还原催化剂氧化以形成活化的催化剂，（e）使活化的催化剂与烯烃接触 适于形成聚烯烃的条件，和（f）回收聚烯烃，其中聚烯烃的密度大于约0.960g / cc，熔体指数为约1.3g / 10min。 至约2.8g / 10min。

    Fast activating catalyst
    9.
    发明授权
    Fast activating catalyst 有权
    快速活化催化剂

    公开(公告)号：US08183173B2

    公开(公告)日：2012-05-22

    申请号：US11963530

    申请日：2007-12-21

    申请人： Max P. McDaniel ,  Elizabeth A. Benham ,  Ted Cymbaluk ,  George Neil

    发明人： Max P. McDaniel ,  Elizabeth A. Benham ,  Ted Cymbaluk ,  George Neil

    IPC分类号： B01J21/00 ,  C08F4/24 ,  C08F4/06

    CPC分类号： C08F10/00 ,  B01J21/08 ,  B01J23/26 ,  B01J35/1019 ,  B01J35/1047 ,  B01J35/1061 ,  B01J37/0207 ,  B01J37/036 ,  B01J37/06 ,  C08F110/02 ,  C08F4/025 ,  C08F4/78 ,  C08F2500/09 ,  C08F2500/12 ,  C08F2500/17 ,  C08F2500/07

    摘要： A method of preparing a catalyst comprising aging a silica support in an alkaline solution to produce an alkaline aged silica support, removing at least a portion of the alkaline solution from the alkaline aged silica support to produce a dried silica support, and activating the silica support to produce a catalyst composition, wherein alkaline aging lowers the surface area of the silica support to less than about 50% of the original value and wherein activation of the silica support is carried out in batches of equal to or greater than about 500 lbs for a time period of less than about 8 hours. A method of preparing a polymer comprising alkaline aging a silica support material, adding chromium to the silica support material prior to the alkaline aging, after the alkaline aging, or both to form a chromium-silica support, rapidly activating the chromium-silica support to produce an activated olefin polymerization catalyst, contacting the activated olefin polymerization catalyst with at least one monomer in a reaction zone under conditions suitable to produce a polymer, and recovering the polymer.

    摘要翻译： 一种制备催化剂的方法，包括在碱性溶液中老化二氧化硅载体以产生碱性老化二氧化硅载体，从碱性老化二氧化硅载体除去至少一部分碱性溶液以产生干燥二氧化硅载体，并活化二氧化硅载体 以产生催化剂组合物，其中碱性老化将二氧化硅载体的表面积降低到小于原始值的约50％，并且其中二氧化硅载体的活化以等于或大于约500lb的批次进行，用于 时间段少于约8小时。 一种制备聚合物的方法，其包括使二氧化硅载体材料碱性老化，在碱性老化之前，碱性老化之后向二氧化硅载体材料中加入铬，或二者形成二氧化硅载体，快速活化铬 - 二氧化硅载体， 产生活化的烯烃聚合催化剂，在适于生产聚合物的条件下，在反应区中使活化的烯烃聚合催化剂与至少一种单体接触，并回收聚合物。