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1. 发明授权

US08354481B2 Method of controlling a polymerization reactor 有权
标题翻译：控制聚合反应器的方法
公开(公告)号：US08354481B2
公开(公告)日：2013-01-15
申请号：US13316136
申请日：2011-12-09
申请人： Paul K. Samples , John R. Parrish , Ivan J. Hartley , Jeffrey B. Drabish
发明人： Paul K. Samples , John R. Parrish , Ivan J. Hartley , Jeffrey B. Drabish
IPC分类号： C08F2/34 , C08F210/06
CPC分类号： C08F2/34 , C08F210/16 , Y10S526/901 , C08F2/00 , C08F210/14
摘要： The present invention provides methods of controlling a gas-phase polymerization process. The method includes determining a difference between a control variable of the polymerization process, such as the production rate, and the desired value of the control variable; adjusting or maintaining a first manipulated variable to at least partially compensate for the difference between the control variable and the desired value; and adjusting or maintaining a second manipulated variable to at least partially compensate for the effect of adjusting or maintaining the first manipulated variable. The first and second manipulated variables can include process variables such as the fluidized bed weight, the catalyst concentration, the concentration of one or more monomers, the flow of one or more comonomers, the ratio of one comonomer to another comonomer, the activator concentration, the ratio of an activator to selectivity control agent, the concentration of a chain transfer agent, and the retardant concentration.
摘要翻译：本发明提供了控制气相聚合方法的方法。该方法包括确定聚合过程的控制变量（例如生产速率）与控制变量的期望值之间的差; 调整或维持第一操纵变量以至少部分地补偿控制变量与期望值之间的差异; 以及调整或维持第二操纵变量以至少部分地补偿调整或维持第一操纵变量的效果。第一和第二操作变量可以包括流化床重量，催化剂浓度，一种或多种单体的浓度，一种或多种共聚单体的流动，一种共聚单体与另一共聚单体的比例，活化剂浓度，活化剂与选择性控制剂的比例，链转移剂的浓度和阻聚剂浓度。

2. 发明授权

US07981982B2 Process for the preparation of soft propylene polymer compositions 有权
标题翻译：制备软丙烯聚合物组合物的方法
公开(公告)号：US07981982B2
公开(公告)日：2011-07-19
申请号：US12451595
申请日：2008-05-07
申请人： Camillo Cagnani , Enrico Beccarini , Claudio Cavalieri
发明人： Camillo Cagnani , Enrico Beccarini , Claudio Cavalieri
IPC分类号： C08F2/34 , C08F210/06
CPC分类号： C08F210/16 , C08F210/06 , Y10S526/901 , C08F2/34 , C08F2/001 , C08F2500/17 , C08F2500/12
摘要： A process for the preparation of a propylene copolymer composition having a Flexural modulus lower than 500 MPa, a total ethylene content higher than 9% and a Xylene soluble fraction at room temperature higher than 20% comprising at least one polymerization step carried out in a gas-phase polymerization reactor comprising at least two interconnected polymerization zones said process being characterized by the fact that at least 30% by weight of said xylene soluble fraction is produced in the polymerization step carried out in a gas-phase polymerization reactor comprising at least two interconnected polymerization zones.
摘要翻译：制备弯曲模量低于500MPa，总乙烯含量高于9％的丙烯共聚物组合物和室温高于20％的二甲苯可溶组分的方法，包括在气体中进行的至少一个聚合步骤包含至少两个相互连接的聚合区的所述相相聚合反应器，所述方法的特征在于，在聚合步骤中产生至少30重量％的所述二甲苯可溶部分，所述聚合步骤在气相聚合反应器中进行，所述气相聚合反应器包括至少两个互连的聚合区。

3. 发明授权

US07875685B2 Gas phase polymerization and distributor plate passivation treatment 有权
标题翻译：气相聚合和分布板钝化处理
公开(公告)号：US07875685B2
公开(公告)日：2011-01-25
申请号：US11936604
申请日：2007-11-07
申请人： Kevin B. Stavens , Matthew W. Holtcamp , Gary D. Mohr , William A. Lamberti
发明人： Kevin B. Stavens , Matthew W. Holtcamp , Gary D. Mohr , William A. Lamberti
IPC分类号： C08F2/34 , B01J8/44 , C08F4/69
CPC分类号： B01J19/02 , B01J8/1818 , B01J8/44 , B01J2219/0236 , B01J2219/024 , B01J2219/0245 , C08F10/00 , Y10S526/901 , Y10T428/31692 , C08F2/004 , C08F2/01 , C08F2/34
摘要： Apparatus and methods for gas phase polymerization are provided. The method can include polymerizing one or more olefins at gas phase conditions in a reactor comprising one or more process exposed surfaces in the presence of a catalyst system; and treating at least a portion of the one or more process exposed surfaces prior to injecting the catalyst system to reduce the number of surface hydroxyls or access of the catalyst system to the surface hydroxyls on the process exposed surfaces.
摘要翻译：提供气相聚合的装置和方法。该方法可以包括在气相条件下在催化剂体系存在下在包含一个或多个工艺暴露表面的反应器中聚合一种或多种烯烃; 以及在注入催化剂体系之前处理所述一个或多个工艺暴露表面的至少一部分以减少表面羟基的数量或催化剂体系进入工艺暴露表面上的表面羟基。

4. 发明授权

US07847036B2 Method for reducing and/or preventing production of excessively low density polymer product during polymerization transitions 有权
标题翻译：用于在聚合过渡期间减少和/或防止生产过低密度聚合物产物的方法
公开(公告)号：US07847036B2
公开(公告)日：2010-12-07
申请号：US12519484
申请日：2007-12-12
申请人： Bruce J. Savatsky , Daniel P. Zilker, Jr.
发明人： Bruce J. Savatsky , Daniel P. Zilker, Jr.
IPC分类号： C08F2/34 , C08F210/16
CPC分类号： C08F10/00 , C08F210/16 , C08F2400/02 , Y10S526/901 , Y10S526/905 , C08F2/34 , C08F2/00 , C08F210/14 , C08F2500/12 , C08F2500/08
摘要： A method for controlling a transition from an initial polymerization reaction to a target polymerization reaction in a manner that reduces significantly the amount of off-grade product having excessively low density produced during the transition, including steps of: during the transition, maintaining a first one of a concentration ratio and a feed ratio at an at least substantially constant value while implementing process changes in an effort to bring produced polymer into compliance with a target specification set and monitoring (without controlling) the other one of the concentration ratio and the feed ratio to generate first data; and during the transition, determining from the first data whether polymer having excessively low density is likely to be produced during the transition, and upon determining that polymer having excessively low density is likely to be produced during the transition, maintaining during the remaining portion of the transition the other ratio at a value that is at least substantially constant while allowing the first ratio to vary is provided.
摘要翻译：用于控制从初始聚合反应转变为目标聚合反应的方法，其显着降低在转变期间产生的具有过低密度的低级产物的量，包括以下步骤：在转变期间，保持第一个浓度比和进料比在至少基本恒定的值的同时，同时实施过程变化，努力使生成的聚合物符合目标规范集和监测（不控制）另一个浓度比和进料比生成第一个数据; 并且在转变期间，从第一数据确定是否可能在转变期间产生具有过低密度的聚合物，并且在确定在转变期间可能产生密度过低的聚合物时，保持在剩余部分提供了在允许第一比率变化的同时至少基本上恒定的值的另一比例的转变。

5. 发明授权

US07790816B2 Method of maintaining heat transfer capacity in a polymerization reaction system 有权
标题翻译：保持聚合反应体系中传热能力的方法
公开(公告)号：US07790816B2
公开(公告)日：2010-09-07
申请号：US11879673
申请日：2007-07-18
申请人： Eric J. Markel , Agapios K. Agapiou
发明人： Eric J. Markel , Agapios K. Agapiou
IPC分类号： C08F2/00 , C08F2/34 , B01J19/00
CPC分类号： C08F10/00 , C08F2400/02 , Y10S526/901 , C08F2/00 , C08F2/005
摘要： This invention relates to a process for maintaining heat transfer capacity of a cycle cooler while polymerizing olefin(s) in the presence of catalyst and a carboxylate metal salt by controlling the amount of carboxylate metal salt present in the reaction system. In particular, the invention relates to maintaining a cycle cooler performance parameter substantially constant while polymerizing olefin(s) in the presence of a carboxylate metal salt and a conventional-type transition metal polymerization catalyst compound, or a metallocene-type polymerization catalyst compound. This invention further relates to a process wherein the cycle cooler performance parameter is a heat transfer capacity of the cycle cooler, a pressure drop across the cooler, or a cooler approach temperature of a cycle cooler.
摘要翻译：本发明涉及通过控制反应体系中存在的羧酸金属盐的量，在催化剂和羧酸盐金属盐的存在下聚合烯烃时，保持循环冷却器的传热能力的方法。特别地，本发明涉及在羧酸金属盐和常规型过渡金属聚合催化剂化合物或茂金属型聚合催化剂化合物的存在下聚合烯烃时，保持循环冷却器性能参数基本恒定。本发明还涉及一种方法，其中循环冷却器性能参数是循环冷却器的传热能力，冷却器上的压降或循环冷却器的冷却器接近温度。

6. 发明授权

US07739217B2 Monitoring polyethylene polymerization system utilizing the method for message suppression in rule based expert system 有权
标题翻译：采用基于规则的专家系统消息抑制方法监测聚乙烯聚合体系
公开(公告)号：US07739217B2
公开(公告)日：2010-06-15
申请号：US12549755
申请日：2009-08-28
申请人： Bohumil Vaclav Kral , David Jack Sandell
发明人： Bohumil Vaclav Kral , David Jack Sandell
IPC分类号： G06F15/18 , C08F2/00 , G05D23/00 , G05D7/00 , B01J8/18
CPC分类号： G06N5/04 , Y10S526/901 , Y10S526/905
摘要： One exemplary method for message suppression comprises: providing first and second rules, each having one or more preconditions and a conclusion, wherein the first rule also has a suppressed-by attribute and at least one of the second preconditions is suppressing; evaluating the one or more first and second preconditions; identifying the first rule as true or false; displaying the message of the second rule if all of the second preconditions are met; identifying the first rule as suppressed if the second rule is named in the suppressed-by attribute; and inhibiting the message display of the suppressed rule or routing the message to second display. The system can comprise: a database containing knowledge of the production unit; a user interface, and at least one precondition, a suppressed by attribute, and one or more rules each having a conclusion and at least one suppressing precondition; an inference engine; and a display.
摘要翻译：一种用于消息抑制的示例性方法包括：提供第一和第二规则，每个具有一个或多个前提条件和结论，其中所述第一规则还具有抑制属性，并且所述第二前提条件中的至少一个被抑制; 评估一个或多个第一和第二前提条件; 将第一条规则确定为真或假; 如果满足所有第二前提条件，则显示第二规则的消息; 如果第二个规则在被抑制的属性中命名，则将第一个规则标识为被抑制; 并禁止消息显示抑制规则或将消息路由到第二显示。该系统可以包括：包含生产单元知识的数据库; 用户界面，以及至少一个前提条件，按属性抑制，以及每个具有结论和至少一个抑制前提条件的一个或多个规则; 推理机和显示器。

7. 发明申请

US20100121000A1 PROCESS FOR THE PREPARATION OF SOFT PROPYLENE POLYMER COMPOSITIONS 有权
标题翻译：制备软丙烯聚合物组合物的方法
公开(公告)号：US20100121000A1
公开(公告)日：2010-05-13
申请号：US12451595
申请日：2008-05-07
申请人： Camillo Cagnani , Enrico Beccarini , Glaudio Cavalieri
发明人： Camillo Cagnani , Enrico Beccarini , Glaudio Cavalieri
IPC分类号： C08F2/34
CPC分类号： C08F210/16 , C08F210/06 , Y10S526/901 , C08F2/34 , C08F2/001 , C08F2500/17 , C08F2500/12
摘要： A process for the preparation of a propylene copolymer composition having a Flexural modulus lower than 500 MPa, a total ethylene content higher than 9% and a Xylene soluble fraction at room temperature higher than 20% comprising at least one polymerization step carried out in a gas-phase polymerization reactor comprising at least two interconnected polymerization zones said process being characterized by the fact that at least 30% by weight of said xylene soluble fraction is produced in the polymerization step carried out in a gas-phase polymerization reactor comprising at least two interconnected polymerization zones.
摘要翻译：制备弯曲模量低于500MPa，总乙烯含量高于9％的丙烯共聚物组合物和室温高于20％的二甲苯可溶组分的方法，包括在气体中进行的至少一个聚合步骤包含至少两个相互连接的聚合区的所述相相聚合反应器，所述方法的特征在于，在聚合步骤中产生至少30重量％的所述二甲苯可溶部分，所述聚合步骤在气相聚合反应器中进行，所述气相聚合反应器包括至少两个互连的聚合区。

8. 发明申请

US20090312506A1 PRODUCTION OF POLYETHYLENE 审中-公开
标题翻译：聚乙烯的生产
公开(公告)号：US20090312506A1
公开(公告)日：2009-12-17
申请号：US12489816
申请日：2009-06-23
申请人： Kevin J. Cann , Minghui Zhang , Jose Fernando Cevallos-Candau , John H. Moorhouse , Mark G. Goode , Daniel P. Zilker, JR. , Maria Apecetche
发明人： Kevin J. Cann , Minghui Zhang , Jose Fernando Cevallos-Candau , John H. Moorhouse , Mark G. Goode , Daniel P. Zilker, JR. , Maria Apecetche
IPC分类号： C08F4/24 , B01J31/14 , B01J31/12
CPC分类号： C08F10/00 , B01J21/08 , B01J31/0212 , B01J31/122 , B01J31/128 , B01J31/143 , B01J31/34 , B01J35/1019 , B01J35/1023 , B01J35/1047 , C08F110/02 , C08F210/16 , Y02P20/52 , Y10S526/901 , C08F4/69 , C08F2500/12 , C08F2500/18 , C08F2500/04 , C08F2500/10 , C08F210/14 , C08F4/025
摘要： The present invention is directed to the use of aluminum alkyl activators and co-catalysts to improve the performance of chromium-based catalysts. The aluminum alkyls allow for the variable control of polymer molecular weight, control of side branching while possessing desirable productivities, and may be applied to the catalyst directly or separately to the reactor. Adding the alkyl aluminum compound directly to the reactor (in-situ) eliminates induction times.
摘要翻译：本发明涉及使用烷基铝活化剂和助催化剂来改进铬基催化剂的性能。烷基铝允许聚合物分子量的可变控制，侧分枝的控制，同时具有所需的生产率，并且可以直接或分别地施加到催化剂到反应器。将烷基铝化合物直接加入反应器（原位）消除了诱导时间。

9. 发明申请

US20090118443A1 Gas Phase Polymerization And Distributor Plate Passivation Treatment 有权
标题翻译：气相聚合和分配器板钝化处理
公开(公告)号：US20090118443A1
公开(公告)日：2009-05-07
申请号：US11936604
申请日：2007-11-07
申请人： Kevin B. Stavens , Matthew W. Holtcamp , Gary D. Mohr , William A. Lamberti
发明人： Kevin B. Stavens , Matthew W. Holtcamp , Gary D. Mohr , William A. Lamberti
IPC分类号： C08F2/01 , B01J8/00
CPC分类号： B01J19/02 , B01J8/1818 , B01J8/44 , B01J2219/0236 , B01J2219/024 , B01J2219/0245 , C08F10/00 , Y10S526/901 , Y10T428/31692 , C08F2/004 , C08F2/01 , C08F2/34
摘要： Apparatus and methods for gas phase polymerization are provided. The method can include polymerizing one or more olefins at gas phase conditions in a reactor comprising one or more process exposed surfaces in the presence of a catalyst system; and treating at least a portion of the one or more process exposed surfaces prior to injecting the catalyst system to reduce the number of surface hydroxyls or access of the catalyst system to the surface hydroxyls on the process exposed surfaces.
摘要翻译：提供气相聚合的装置和方法。该方法可以包括在气相条件下在催化剂体系存在下在包含一个或多个工艺暴露表面的反应器中聚合一种或多种烯烃; 以及在注入催化剂体系之前处理所述一个或多个工艺暴露表面的至少一部分以减少表面羟基的数量或催化剂体系进入工艺暴露表面上的表面羟基。

10. 发明授权

US07482411B2 Gas-phase olefin polymerization process 有权
标题翻译：气相烯烃聚合工艺
公开(公告)号：US07482411B2
公开(公告)日：2009-01-27
申请号：US10553476
申请日：2004-04-01
申请人： Guiseppe Penzo , Gabriele Mei , Gerben Meier
发明人： Guiseppe Penzo , Gabriele Mei , Gerben Meier
IPC分类号： C08F2/34 , B01J19/24
CPC分类号： B01J8/1827 , B01J8/1872 , B01J2208/00256 , B01J2208/00274 , B01J2208/003 , C08F10/00 , Y10S526/901 , Y10S526/918 , C08F2/01 , C08F2/34
摘要： A continuous process for the olefin polymerization in a fluidized bed reactor, said process comprising continuously passing a gaseous stream comprising one or more α-olefin monomers through the fluidized bed in the presence of a polymerization catalyst under reactive conditions, withdrawing polymeric product and unreacted fluids from the reactor, cooling part of said unreacted fluids below the dew point to form a two-phase mixture of gas and condensed liquid and reintroducing said two-phase mixture into the reactor, the process being characterized in that said two-phase mixture is reintroduced under the distribution plate of the reactor so that a part of condensed liquid is separated from the gas and is successively fed above the fluidized bed through an external pipe connecting the bottom of the reactor to a point situated above the upper limit of the fluidized bed of polymer particles.
摘要翻译：在流化床反应器中烯烃聚合的连续方法，所述方法包括在反应条件下，在聚合催化剂存在下连续地通过包含一种或多种α-烯烃单体的气流通过流化床，将聚合物和未反应的流体将来自反应器的所述未反应流体的一部分冷却至低于露点以形成气体和冷凝液体的两相混合物，并将所述两相混合物重新引入反应器，其特征在于所述两相混合物被重新引入在反应器的分配板下方，使得一部分冷凝液体与气体分离，并且通过将反应器底部连接到位于流化床上限以上的点的外部管连续地供入流化床上方聚合物颗粒。

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