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公开(公告)号：US5514634A
公开(公告)日：1996-05-07
申请号：US257997
申请日：1994-06-10
IPC分类号： C08F4/658 , B01J31/02 , B01J31/12 , B01J31/14 , C08F4/656 , C08F10/02 , C08F210/00 , C08F210/02 , C08F210/16 , B01J31/00 , B01J37/00
CPC分类号： B01J31/0274 , B01J31/0204 , B01J31/0275 , B01J31/122 , B01J31/128 , B01J31/14 , B01J31/143 , C08F10/02 , C08F210/16
摘要： An ethylene polymerization catalyst is prepared by impregnating a porous support, such as silica, with an organomagnesium compound such as a dialkylmagnesium compound, contacting the magnesium-containing support with a silane compound which is free of hydroxyl groups, such as tetraalkoxysilanes, e.g. tetraethyl orthosilicate, and incorporating a transition metal component, such as titanium tetrachloride, in a specific ratio to the magnesium and silane components. Activation of this catalyst precursor with dimethylaluminum chloride as a cocatalyst results in a catalyst system which is effective for the production of ethylene copolymers with multimodal molecular weight distributions.
摘要翻译： 通过用有机镁化合物如二烷基镁化合物浸渍多孔载体如二氧化硅来制备乙烯聚合催化剂，使含镁载体与不含羟基的硅烷化合物接触，例如四烷氧基硅烷，例如四烷氧基硅烷。 原硅酸四乙酯，并以与镁和硅烷组分成比例的比例掺入过渡金属组分如四氯化钛。 用二甲基氯化铝作为助催化剂活化该催化剂前体，得到对于生产具有多峰分子量分布的乙烯共聚物有效的催化剂体系。
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2.发明授权High activity polyethylene catalysts which produce bimodal or trimodal product molecular weight distributions 失效产生双峰或三峰产物分子量分布的高活性聚乙烯催化剂
公开(公告)号：US5693583A
公开(公告)日：1997-12-02
申请号：US799086
申请日：1997-02-11
摘要： A catalyst composition for copolymerizing ethylene and alpha-olefins is prepared by treating a silica carrier, in a non-polar hydrocarbon solvent, with a dialkyl magnesium compound, a halogen-containing compound and titanium tetrachloride, to form a catalyst precursor and activating the precursor with dimethylaluminum chloride. Also disclosed is a process for copolymerizing ethylene and alpha-olefins in the presence of the catalyst of the invention. The polymer products have multimodal molecular weight distributions unlike unimodal molecular weight distributions of polymers prepared with similar catalyst precursors but activated with different alkylaluminum activators, e.g., triethylaluminum or trimethylaluminum.
摘要翻译： 通过用二烷基镁化合物，含卤素化合物和四氯化钛处理非极性烃溶剂中的二氧化硅载体来制备用于共聚乙烯和α-烯烃的催化剂组合物，以形成催化剂前体并活化前体 与二甲基氯化铝。 还公开了在本发明的催化剂存在下共聚乙烯和α-烯烃的方法。 聚合物产物具有多峰分子量分布，不同于用类似的催化剂前体制备的聚合物的单峰分子量分布，但是用不同的烷基铝活化剂例如三乙基铝或三甲基铝活化。
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3.发明授权Catalyst composition for production of linear low-density ethylene-hexene copolymers and films thereof 失效用于生产线性低密度乙烯 - 己烯共聚物的催化剂组合物及其膜
公开(公告)号：US5139986A
公开(公告)日：1992-08-18
申请号：US740781
申请日：1991-08-06
申请人： Pam J. Cook , Robert O. Hagerty , Per K. Husby , Thomas E. Nowlin
发明人： Pam J. Cook , Robert O. Hagerty , Per K. Husby , Thomas E. Nowlin
CPC分类号： C08F210/02
摘要： The invention relates to catalysts for ethylene polymerization or copolymerization to produce film quality product which exhibits improved FDA hexane extractables. The invention also relates to catalysts for ethylene polymerization or copolymerization to produce film quality product which exhibits improved dart impact resistance. The invention relates to catalysts for ethylene polymerization or copolymerization to produce film quality product which exhibits improved MD tear properties.
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公开(公告)号：US08598283B2
公开(公告)日：2013-12-03
申请号：US13575872
申请日：2011-02-17
IPC分类号： C08F2/00 , C08F2/38 , C08F4/00 , C08F210/00
CPC分类号： C08F10/00 , C08F4/6592 , C08F210/16 , C08F2/34 , C08F2/42 , C08F2/00 , C08F210/14 , C08F2500/12 , C08F2500/18
摘要： Methods for shutting down and restarting polymerization in a gas phase polymerization reactor are provided. The method can include introducing a polymerization neutralizer to the reactor in an amount sufficient to stop polymerization therein. The method can also include stopping recovery of a polymer product from the reactor and stopping introduction of a catalyst feed and a reactor feed to the reactor. The method can also include adjusting a pressure within the reactor from an operating pressure to an idling pressure. The method can also include adjusting a superficial velocity of a cycle fluid through the reactor from an operating superficial velocity to an idling superficial velocity. The method can also include maintaining the reactor in an idled state for a period of time.
摘要翻译： 提供了在气相聚合反应器中关闭和重新开始聚合的方法。 该方法可以包括以足以阻止其中聚合的量向反应器中引入聚合中和剂。 该方法还可以包括停止从反应器中回收聚合物产物，并停止将催化剂进料和反应器进料引入反应器。 该方法还可以包括将反应器内的压力从操作压力调节到空载压力。 该方法还可以包括调节通过反应器的循环流体的表观速度从操作的表观速度到空转的表观速度。 该方法还可以包括将反应器维持在空闲状态一段时间。
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5.发明授权Method for on-line monitoring and control of polymerization processes and reactors to prevent discontinuity events 失效用于在线监测和控制聚合过程和反应器以防止不连续事件的方法公开(公告)号：US08433443B2
公开(公告)日：2013-04-30
申请号：US12214469
申请日：2008-06-19
申请人： Robert O. Hagerty , Ian D. Burdett , Marc L. DeChellis , F. David Hussein , Eric J. Markel , Michael E. Muhle , Richard B. Pannell , Daniel P. Zilker
发明人： Robert O. Hagerty , Ian D. Burdett , Marc L. DeChellis , F. David Hussein , Eric J. Markel , Michael E. Muhle , Richard B. Pannell , Daniel P. Zilker
IPC分类号： G05B21/00
CPC分类号： C08F10/00 , C08F2400/02 , C08F2/34 , C08F2/002 , C08F2/00
摘要： Generally, a method of monitoring a polymerization reaction in a fluid bed reactor to generate, in on-line fashion, data indicative of the imminent occurrence of a discontinuity event (for example, sheeting) and optionally also control the reaction to prevent the occurrence of the discontinuity event is provided. Typical embodiments include the steps of generating in on-line fashion at least one of bed static data indicative of static charge in the fluidized bed and carryover static data indicative of carryover static; and generating at least one of temperature data (in on-line fashion using at least one monitored reaction parameter) indicative of a first temperature and acoustic emission data indicative of resin stickiness in the reactor, where the first temperature is indicative of at least one of degree of resin stickiness in the reactor and a characteristic of melting behavior of polymer resin in the reactor in the presence of at least one diluent.
摘要翻译： 通常，监测流化床反应器中的聚合反应的方法，以在线方式产生指示即将发生的不连续事件（例如，片材）的数据，并且还可任选地控制反应以防止发生 提供不连续事件。 典型的实施方案包括以在线方式产生指示流化床中的静电荷的床静态数据中的至少一种并携带指示携带静电的静态数据的步骤; 并且产生指示在反应器中指示树脂粘性的第一温度和声发射数据的温度数据（以在线方式使用至少一个监测的反应参数）中的至少一个，其中第一温度表示以下中的至少一个： 在至少一种稀释剂存在下，反应器中的树脂粘性程度和聚合物树脂在反应器中的熔融行为的特征。
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公开(公告)号：US08383739B2
公开(公告)日：2013-02-26
申请号：US13265061
申请日：2010-05-05
IPC分类号： C08F2/00 , C08F2/38 , C08F4/00 , C08F210/00
CPC分类号： C08F210/16 , C08F2400/02 , C08F2/34 , C08F2/002
摘要： Systems and methods for monitoring a polymerization reactor are provided. The method can include estimating an acoustic condition of a polymer produced in a reactor. The method can also include estimating a stickiness control parameter of the polymer produced in the reactor. The method can further include pairing the acoustic condition with the stickiness control parameter to provide a paired acoustic condition and stickiness control parameter.
摘要翻译： 提供了用于监测聚合反应器的系统和方法。 该方法可以包括估计在反应器中产生的聚合物的声学条件。 该方法还可以包括估计在反应器中产生的聚合物的粘性控制参数。 该方法还可以包括将声学条件与粘性控制参数配对以提供成对的声学条件和粘性控制参数。
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7.发明授权公开(公告)号：US08378040B2
公开(公告)日：2013-02-19
申请号：US12999803
申请日：2009-07-23
申请人： Eric J. Markel , Robert O. Hagerty , Ryan W. Impelman , Richard B. Pannell , Cecile F. Saladino
发明人： Eric J. Markel , Robert O. Hagerty , Ryan W. Impelman , Richard B. Pannell , Cecile F. Saladino
IPC分类号： C08F2/00 , C08F110/02 , B08B3/00
CPC分类号： B01J8/1827 , B01J8/1809 , B01J8/1818 , B01J19/0026 , B01J2208/00274 , B01J2208/00707 , B01J2219/00247 , B01J2219/00272 , C08F10/00 , C08F110/02 , Y02P20/582 , C08F2/34 , C08F2/002 , C08F2/01
摘要： A method for cleaning a distributor plate in a fluidized bed polymerization reactor system according to one embodiment includes, in a first mode, operating with about a normal, baseline value of superficial gas velocity in a fluidized bed polymerization reactor system having a reactor vessel, a recycle line, and a distributor plate in the reactor vessel near an inlet of the reactor vessel. In a second mode, the superficial gas velocity is increased above the baseline value of the first mode to a level sufficient to raise the temperature of the cycle gas at the inlet above an average temperature of the cycle gas at the inlet in the first mode, and to a level sufficient to dislodge foulant from holes in the distributor plate.
摘要翻译： 根据一个实施方案的用于清洁流化床聚合反应器系统中的分配器板的方法包括在具有反应器容器的流化床聚合反应器系统中以大约正常的表观气体速度的基准值操作的第一模式， 循环管线和反应器容器附近的分配器板。 在第二模式中，将表观气体速度增加到高于第一模式的基准值，至足以使入口处的循环气体的温度高于第一模式中入口处循环气体的平均温度的水平， 并且达到足以从分配器板中的孔中排出污垢的水平。
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公开(公告)号：US20120329962A1
公开(公告)日：2012-12-27
申请号：US13575872
申请日：2011-02-17
IPC分类号： C08F2/38
CPC分类号： C08F10/00 , C08F4/6592 , C08F210/16 , C08F2/34 , C08F2/42 , C08F2/00 , C08F210/14 , C08F2500/12 , C08F2500/18
摘要： Methods for shutting down and restarting polymerization in a gas phase polymerization reactor are provided. The method can include introducing a polymerization neutralizer to the reactor in an amount sufficient to stop polymerization therein. The method can also include stopping recovery of a polymer product from the reactor and stopping introduction of a catalyst feed and a reactor feed to the reactor. The method can also include adjusting a pressure within the reactor from an operating pressure to an idling pressure. The method can also include adjusting a superficial velocity of a cycle fluid through the reactor from an operating superficial velocity to an idling superficial velocity. The method can also include maintaining the reactor in an idled state for a period of time.
摘要翻译： 提供了在气相聚合反应器中关闭和重新开始聚合的方法。 该方法可以包括以足以阻止其中聚合的量向反应器中引入聚合中和剂。 该方法还可以包括停止从反应器中回收聚合物产物，并停止将催化剂进料和反应器进料引入反应器。 该方法还可以包括将反应器内的压力从操作压力调节到空载压力。 该方法还可以包括调节通过反应器的循环流体的表观速度从操作的表观速度到空转的表观速度。 该方法还可以包括将反应器维持在空闲状态一段时间。
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公开(公告)号：US08148481B2
公开(公告)日：2012-04-03
申请号：US13128087
申请日：2009-12-17
CPC分类号： C08F10/02 , C08F210/16 , Y10S526/901 , Y10S526/905 , C08F2/34 , C08F2/005 , C08F210/14
摘要： A method for preparing a reactor for performance of a polymerization reaction, the method including providing at least one seed bed into the reactor; wherein the at least one seed bed includes at least one organometallic compound and polymer particles.
摘要翻译： 一种制备用于进行聚合反应的反应器的方法，所述方法包括在反应器中提供至少一个种子床; 其中所述至少一种种子床包括至少一种有机金属化合物和聚合物颗粒。
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公开(公告)号：US20110294973A1
公开(公告)日：2011-12-01
申请号：US13128087
申请日：2009-12-17
CPC分类号： C08F10/02 , C08F210/16 , Y10S526/901 , Y10S526/905 , C08F2/34 , C08F2/005 , C08F210/14
摘要： A method for preparing a reactor for performance of a polymerization reaction, the method including providing at least one seed bed into the reactor; wherein the at least one seed bed includes at least one organometallic compound and polymer particles.
摘要翻译： 一种制备用于进行聚合反应的反应器的方法，所述方法包括在反应器中提供至少一个种子床; 其中所述至少一种种子床包括至少一种有机金属化合物和聚合物颗粒。
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