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    Methods of preparing a polymerization catalyst
    41.
    发明授权
    Methods of preparing a polymerization catalyst 有权
    制备聚合催化剂的方法

    公开(公告)号：US07910669B2

    公开(公告)日：2011-03-22

    申请号：US12406109

    申请日：2009-03-17

    申请人： Elizabeth A. Benham ,  Max P. McDaniel ,  Kathy S. Collins ,  Stephen M. Wharry

    发明人： Elizabeth A. Benham ,  Max P. McDaniel ,  Kathy S. Collins ,  Stephen M. Wharry

    IPC分类号： B01J31/00 ,  B01J21/00 ,  B01J23/00 ,  C08F4/24 ,  C08F110/02

    CPC分类号： C08F10/02 ,  C08F110/02 ,  C08F4/69 ,  C08F4/24 ,  C08F2500/10 ,  C08F2500/08 ,  C08F2500/12

    摘要： A method comprising (a) contacting a support and a chromium-containing compound to form chromium-containing support, (b) heat treating the chromium-containing support in an oxidizing atmosphere to form a treated support, (c) contacting the treated support with carbon monoxide to form a CO-contacted support, and (d) contacting the CO-contacted support with hydrogen to form a catalyst. A method comprising oxidizing a chromium-treated support to form a polymerization catalyst, contacting the polymerization catalyst with carbon monoxide to form a reduced polymerization catalyst, contacting the reduced polymerization catalyst with hydrogen to form an activated polymerization catalyst, and contacting the activated polymerization catalyst with ethylene in a reaction zone under suitable reaction conditions to form a random copolymer. A method comprising reducing a polymerization catalyst comprising Cr(VI) to form a polymerization catalyst comprising Cr(II), and treating the polymerization catalyst comprising Cr(II) with hydrogen.

    摘要翻译： 一种方法，包括（a）使载体和含铬化合物接触以形成含铬载体，（b）在氧化气氛中热处理含铬载体以形成经处理的载体，（c）使经处理的载体与 一氧化碳以形成CO-接触的载体，和（d）使CO-接触的载体与氢接触以形成催化剂。 一种方法，包括氧化铬处理的载体以形成聚合催化剂，使聚合催化剂与一氧化碳接触以形成还原的聚合催化剂，使还原的聚合催化剂与氢接触以形成活化的聚合催化剂，并使活化的聚合催化剂与 乙烯在合适的反应条件下在反应区中形成无规共聚物。 一种包括还原包含Cr（VI）的聚合催化剂以形成包含Cr（II）的聚合催化剂并用氢气处理包含Cr（II）的聚合催化剂的方法。

    Fast Activating Catalyst
    49.
    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。