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    • 73. 发明申请
    • Methods of Preparing a Polymerization Catalyst
    • 制备聚合催化剂的方法
    • US20100240844A1
    • 2010-09-23
    • US12406109
    • 2009-03-17
    • Elizabeth A. BenhamMax P. McDanielKathy S. CollinsStephen M. Wharry
    • Elizabeth A. BenhamMax P. McDanielKathy S. CollinsStephen M. Wharry
    • C08F4/22B01J27/20
    • C08F10/02C08F110/02C08F4/69C08F4/24C08F2500/10C08F2500/08C08F2500/12
    • 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.
    • 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。
    • 77. 发明授权
    • Processes that produce polymers
    • 生产聚合物的方法
    • US06194526B1
    • 2001-02-27
    • US09111213
    • 1998-07-07
    • Elizabeth A. BenhamRhutesh K. ShahAshish M. SukhadiaJoel L. MartinMax P. McDaniel
    • Elizabeth A. BenhamRhutesh K. ShahAshish M. SukhadiaJoel L. MartinMax P. McDaniel
    • C08F452
    • C08F210/16Y10S526/916C08F2/14C08F210/08C08F2500/12C08F2500/19C08F210/14
    • A process to produce a polymer is provided. The process comprises polymerizing monomers wherein the monomers comprise ethylene, 1-butene, and 1-hexene. The total amount of 1-butene and 1-hexene in the polymer is less than 10 mole percent of the polymer, and the mole ratio of 1-butene to 1-hexene is in a range of 4:1 to 9:1. The polymerizing is conducted in a loop reactor under slurry polymerization conditions with a diluent that comprises isobutane, where the isobutane is a majority of the diluent by weight. A catalyst that comprises titanium, magnesium, and halide and a cocatalyst that comprises organoaluminum are utilized. The polymerizing is conducted at a temperature from 73° C. to 85° C. The polymer produced has a heterogeneity index (Mw/Mn) from about 3 to about 7, a density from about 0.915 to about 0.925 grams per cubic centimeter, a melt index from about 0.25 to about 3.5 grams per ten minutes, and a shear ratio from about 24 to about 30.
    • 提供了制备聚合物的方法。 该方法包括聚合单体,其中单体包括乙烯,1-丁烯和1-己烯。 聚合物中1-丁烯和1-己烯的总量小于聚合物的10摩尔%,1-丁烯与1-己烯的摩尔比在4:1至9:1的范围内。 在淤浆聚合条件下,使用包含异丁烷的稀释剂在环流反应器中进行聚合,其中异丁烷是重量份的大部分稀释剂。 使用包含钛,镁和卤化物的催化剂以及包含有机铝的助催化剂。 聚合在73℃至85℃的温度下进行。所生产的聚合物具有约3至约7的非均匀性指数(Mw / Mn),约0.915至约0.925克/立方厘米的密度, 熔体指数为约0.25至约3.5克/ 10分钟,剪切比为约24至约30。