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1. 发明授权

US5616662A Method for polymerizing olefins in a fluid-bed reactor 失效
标题翻译：在流化床反应器中聚合烯烃的方法
公开(公告)号：US5616662A
公开(公告)日：1997-04-01
申请号：US578642
申请日：1996-01-04
申请人： Jukka Koskinen , Henrik Andtsjo , Jouni Takakarhu , Kari Sarantila
发明人： Jukka Koskinen , Henrik Andtsjo , Jouni Takakarhu , Kari Sarantila
IPC分类号： B01F13/02 , B01J8/24 , B01J8/38 , C08F2/34
CPC分类号： B01J8/382 , B01F13/0216 , B01J8/1872 , Y10S526/901
摘要： A fluidized bed polymerization process in which a central mixing element sweeps the interior of the bed. The mixing element contains agitator arm which pass adjacent to the reactor walls and a have a perforated surface. Gas is directed to the central mixing shaft and distributed to the agitator arms.
摘要翻译： PCT No.PCT / FI94 / 00304 Sec。 371日期1996年1月4日 102（e）日期1996年1月4日PCT提交1994年7月1日PCT公布。公开号WO95 / 01831 日期1995年1月19日一种流化床聚合方法，其中中央混合元件扫过床的内部。混合元件包括通过邻近反应器壁的搅拌臂，和a具有穿孔表面。气体被引导到中心混合轴并分配到搅拌器臂。

2. 发明授权

US5326835A Multi-stage process for producing polyethylene 失效
标题翻译：生产聚乙烯的多阶段工艺
公开(公告)号：US5326835A
公开(公告)日：1994-07-05
申请号：US920569
申请日：1992-08-20
申请人： Antero Ahvenainen , Kari Sarantila , Henrik Andtsjo , Jouni Takakarhu , Ari Palmroos
发明人： Antero Ahvenainen , Kari Sarantila , Henrik Andtsjo , Jouni Takakarhu , Ari Palmroos
IPC分类号： C08F2/00 , B01J8/24 , B01J19/24 , C08F2/06 , C08F2/34 , C08F10/00 , C08F10/02 , C08F110/02 , C08F297/08 , C08L23/08
CPC分类号： C08F297/083 , B01J19/2435 , B01J8/24 , C08F110/02 , Y02P20/544 , Y10S526/905
摘要： The invention concerns a multi-stage process for producing polyethylene having a bimodal and/or broad molecular weight distribution in the presence of an ethylene polymerizing catalyst system in a multistep reaction sequence, in which the first reaction step is a liquid phase polymerization step and the second reaction step is formed by one or more gas-phase polymerization steps. According to the process of the invention in the first reaction step ethylene is polymerized in a loop reactor (10) in an inert low-boiling hydrocarbon medium the residence time being at least 10 minutes, reaction mixture is discharged from the loop reactor (10) and at least a substantial part of the inert hydrocarbon mixture is separated and the polymer is transferred into one or more gas-phase reactors (30), where the polymerization is completed in the presence of ethylene and optionally hydrogen and a comonomer. As an inert hydrocarbon medium in the loop reactor (10) propane can be used and the polymerization can be carried out also so that the mixture of inert hydrocarbon, monomer, hydrogen and optional comonomer is under supercritical conditions.
摘要翻译： PCT No.PCT / FI91 / 00406 Sec。 371日期：1992年8月20日 102（e）日期1992年8月20日PCT 1991年12月20日PCT PCT。出版物WO92 / 12182 日本1992年7月23日。本发明涉及在多步反应序列中在乙烯聚合催化剂体系存在下生产具有双峰和/或宽分子量分布的聚乙烯的多阶段方法，其中第一反应步骤为通过一个或多个气相聚合步骤形成液相聚合步骤和第二反应步骤。根据本发明在第一反应步骤中的方法，乙烯在环状反应器（10）中在惰性低沸点烃介质中聚合，停留时间为至少10分钟，反应混合物从环管反应器（10）排出，并且将至少大部分惰性烃混合物分离并将聚合物转移到一个或多个气相反应器（30）中，其中聚合在乙烯和任选的氢气和共聚单体存在下完成。作为环管反应器（10）中的惰性烃介质，可以使用丙烷，也可以进行聚合，使得惰性烃，单体，氢和任选的共聚单体的混合物处于超临界条件下。

3. 发明授权

US5195654A Method for feeding a mud-like catalyst into a polymerization reactor 失效
标题翻译：将MUD类催化剂送入聚合反应器的方法
公开(公告)号：US5195654A
公开(公告)日：1993-03-23
申请号：US702226
申请日：1991-05-17
申请人： Jouni Takakarhu , Kari Sarantila
发明人： Jouni Takakarhu , Kari Sarantila
IPC分类号： B01J3/02 , B01J8/00
CPC分类号： B01J3/02 , B01J8/0015 , B01J8/0035 , Y10T137/87249
摘要： The invention relates to a method and device for feeding a mud-like catalyst mixture into a polymerization reactor. The catalyst mixture is fed from a container into a batching space of a feeder connected thereto, from which channel the catalyst mixture is further fed by batches into the polymerization reactor by the use of the pressure of a medium fed into the feeder. In accordance with the invention, after each catalyst batch fed into the polymerization reactor, the medium is substantially removed from the batching space of the feeder by leading the medium via an outlet channel into a space between two on/off valves before filling the batching space with a new catalyst batch.

4. 发明授权

US6037184A Method and apparatus for taking sample 失效
标题翻译：取样的方法和装置
公开(公告)号：US6037184A
公开(公告)日：2000-03-14
申请号：US952371
申请日：1997-11-10
申请人： Kari Matilainen , Ari Palmroos , Auli Nummila-Pakarinen , Markku Savolainen , Timo Blomqvist , Jouni Takakarhu , Klaus Nyfors
发明人： Kari Matilainen , Ari Palmroos , Auli Nummila-Pakarinen , Markku Savolainen , Timo Blomqvist , Jouni Takakarhu , Klaus Nyfors
IPC分类号： G01N1/10 , B01J8/00 , C08F2/00 , C08F10/00 , G01N1/20 , G01N30/04
CPC分类号： B01J8/008 , G01N1/2035 , Y10T436/25375 , Y10T436/255 , Y10T436/25875
摘要： A method and apparatus for taking a sample from a flowing suspension formed by polymer particles and hydrocarbon diluent in a olefin polymerization process including at least one filter situated at a plane of an inside surface of a transfer conduit between reactors. Each filter includes perforations or pores having a size to prevent substantially any of the catalyst used in the polymerization process from passing through the filter, e.g., smaller than the smallest particle size of a catalyst used in the polymerization process. The pore or perforation size of each filter is preferably 0.1-10 .mu.m, preferably between 0.2-1 .mu.m. A pressure difference permits at least partial vaporization of the sample as it passes through the filter.
摘要翻译： PCT No.PCT / FI96 / 00270 Sec。 371日期：1997年11月10日 102（e）日期1997年11月10日PCT提交1996年5月13日PCT公布。 WO96 / 35936 PCT公开号日期：1996年11月14日一种用于在烯烃聚合方法中由聚合物颗粒和烃稀释剂形成的流动悬浮液中取样品的方法和装置，该方法和装置包括位于反应器之间的输送导管内表面的至少一个过滤器。每个过滤器包括具有防止基本上任何在聚合过程中使用的催化剂通过过滤器的尺寸的孔或孔，例如小于在聚合过程中使用的催化剂的最小颗粒尺寸。每个过滤器的孔或穿孔尺寸优选为0.1-10μm，优选在0.2-1μm之间。压力差允许样品在通过过滤器时至少部分蒸发。

5. 发明授权

US5684097A Process for preparing polyethylene 失效
标题翻译：制备聚乙烯的方法
公开(公告)号：US5684097A
公开(公告)日：1997-11-04
申请号：US475842
申请日：1995-06-07
申请人： Ari Palmroos , Ali Harlin , Antero Ahvenainen , Jouni Takakarhu , Aimo Sahila
发明人： Ari Palmroos , Ali Harlin , Antero Ahvenainen , Jouni Takakarhu , Aimo Sahila
IPC分类号： C08F2/14 , B01J8/24 , B01J19/24 , C08F2/06 , C08F2/34 , C08F10/02 , C08F210/16
CPC分类号： C08F10/02 , B01J19/2435 , B01J19/245 , B01J8/24 , B01J2219/00051 , B01J2219/00166 , B01J2219/00173 , C08F210/16
摘要： A process for producing polyethylene compositions in the presence of a catalytic system of ethylene polymerizing catalyst and cocatalyst in a multistage continuous reaction sequence consisting of successive liquid phase and gas phase polymerizations is disclosed. In the first step of the process, ethylene and optionally hydrogen and comonomer are polymerized in a first loop reactor in a low boiling hydrocarbon medium in the presence of ethylene polymerizing catalyst and cocatalyst. The reaction mixture is then removed and then transferred to a second loop reactor where polymerization is continued by addiing ethylene, hydrogen and optionally inert hydrocarbon, comonomers and cocatalysts. Thereafter, the reaction mixture is removed from the second loop reactor along with an essential part of the reaction medium and transferred to a gas phase reactor where polymerizing is continued in the presence of added ethylene and optionally hydrogen, comonomers and cocatalysts to form an end product. The residence time and reaction temperature being such that the proportion of the ethylene polymer produced in the first loop reactor to the end product of the process is between 1-20%.
摘要翻译：在由连续液相和气相聚合组成的多级连续反应序列中，在乙烯聚合催化剂和助催化剂催化体系存在下生产聚乙烯组合物的方法。在该方法的第一步中，在乙烯聚合催化剂和助催化剂存在下，乙烯和任选的氢和共聚单体在第一回路反应器中在低沸点烃介质中聚合。然后除去反应混合物，然后转移到第二环管反应器中，其中通过加入乙烯，氢气和任选的惰性烃，共聚单体和助催化剂继续聚合。此后，将反应混合物与反应介质的主要部分一起从第二环管反应器中除去，并转移到气相反应器中，在气相反应器中，在加入的乙烯和任选的氢，共聚单体和助催化剂的存在下，继续聚合以形成最终产物。停留时间和反应温度使得在第一回路反应器中产生的乙烯聚合物与该方法的最终产物的比例为1-20％。

6. 发明授权

US5602348A Method and equipment for taking a sample 失效
标题翻译：取样的方法和设备
公开(公告)号：US5602348A
公开(公告)日：1997-02-11
申请号：US553363
申请日：1996-02-12
申请人： Jouni Takakarhu , Klaus Nyfors
发明人： Jouni Takakarhu , Klaus Nyfors
IPC分类号： B01J19/00 , G01N1/10 , G01N1/20 , B01F3/04
CPC分类号： B01J19/0053 , B01J19/0066 , G01N1/2035 , B01J2219/00094 , B01J2219/00254 , G01N2001/1025 , G01N2001/2064
摘要： The invention concerns a method and an equipment for taking a sample in slurry polymerization. The sample is taken directly from the liquid phase of the reactor (15) through an in-line filter (40). The slurry flow is maintained in the in-line filter (40) at a sufficiently hight level to prevent immobilization of polymer or catalyst particles on the filter face of the in-line filte (40).
摘要翻译： PCT No.PCT / FI94 / 00182 Sec。 371日期：1996年2月12日 102（e）日期1996年2月12日PCT提交1994年5月10日PCT公布。出版物WO94 / 27134 日期1994年11月24日本发明涉及一种用于在浆液聚合中取样的方法和设备。样品通过直列式过滤器（40）从反应器（15）的液相中直接取出。浆料流以足够高的水平保持在在线过滤器（40）中，以防止聚合物或催化剂颗粒固定在直线过滤嘴（40）的过滤面上。

7. 发明授权

US5242999A Regulation method for regulating the temperature in a reactor utilized in the polymerization of olefines 失效
标题翻译：用于调节烯烃聚合反应器中温度的调节方法
公开(公告)号：US5242999A
公开(公告)日：1993-09-07
申请号：US890912
申请日：1992-05-29
申请人： Jouni Takakarhu , Ari Palmroos
发明人： Jouni Takakarhu , Ari Palmroos
IPC分类号： B01J8/24 , B01J19/00 , C08F2/00 , C08F2/01 , C08F2/02 , C08F10/00 , G05D23/19
CPC分类号： B01J8/1809 , B01J19/0013 , C08F10/00 , G05D23/1919 , B01J2219/00054 , B01J2219/00058 , B01J2219/00103 , B01J2219/00108 , B01J2219/00164
摘要： The invention relates to a regulation method for regulating the temperature in a reactor utilized in the polymerization of olefines. A circulating gas is led to the reactor along a circulating gas flow line, and the circulating gas is cooled by leading part of the circulating gas flowing along a circulating gas flow line along a by-pass flow line through a cooler. A regulating device for the circulating gas inlet-flow temperature controls the amount of the circulating gas by-pass flow along a circulating gas by-pass flow line through the cooler such that the sum of the openings of a valve in the circulating gas flow line and a valve in the circulating gas by-pass flow line is maintained substantially constant in the range from about 90 to about 120%.

8. 发明授权

US5180558A Method and apparatus for taking samples 失效
标题翻译：采样方法和装置
公开(公告)号：US5180558A
公开(公告)日：1993-01-19
申请号：US707463
申请日：1991-05-30
申请人： Jouni Takakarhu
发明人： Jouni Takakarhu
IPC分类号： B01J8/00 , C08F2/00 , G01N1/20 , G01N33/44
CPC分类号： G01N33/442 , B01J8/008 , G01N1/2035 , G01N33/44
摘要： The invention relates to a method and an apparatus for continuously taking a sample from a discharge system of a polymerization reactor having a discontinuously opening discharge valve connecting the polymerization reactor to a product tube leading into a solid-constituent separation system. A sampling means having a closing valve of an on/off type is connected to the product tube. The closing valve closes for the period of a pressure wave occurring when the discharge valve opens, and opens after the pressure wave. A buffer container connected to an analyzer is provided with a sufficient volume to maintain the continuity of the sample flow when the closing valve is closed.

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