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1.发明授权Deactivation of catalysts of the Ziegler type used for the preparation of polyethylene in high pressure, high temperature processes 失效用于在高压，高温过程中制备聚乙烯的ZIEGLER型催化剂的脱除
公开(公告)号：US4105609A
公开(公告)日：1978-08-08
申请号：US661414
申请日：1976-02-25
摘要： The present invention relates to a process for the continuous polymerisation and copolymerisation of ethylene under a pressure higher than 500 bars and at temperatures higher than about 160.degree. C in the presence of a catalyst containing a derivative of a transition metal and an organic derivative of aluminium, wherein there is injected into the reaction mixture at the end of reaction at least one alkali metal salt or alkaline earth metal salt of a carboxylic acid, in an amount sufficient to bring about the deactivation of the catalyst, said salt being so chosen that its reaction products with the constituents of the catalyst remain in the polymer.
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公开(公告)号：US3969332A
公开(公告)日：1976-07-13
申请号：US499106
申请日：1974-08-20
CPC分类号： C08F10/00
摘要： A method for the polymerization or copolymerization of ethylene comprising polymerizing the ethylene at a pressure greater than 500 bars, at a temperature in the range 160.degree. to 280.degree.C and under conditions in which polymerization takes place in a single liquid phase, in the presence of a catalyst system comprisingA. an alkylsiloxalane derivative of the formula, ##EQU1## and B. a halogenated titanium compound of the titanium trichloride type, the Al/Ti ratio between the constituents being between 1 and 10.
摘要翻译： 一种用于乙烯聚合或共聚的方法，其包括在压力大于500巴的条件下，在160-280℃的温度和在单一液相中进行聚合的条件下聚合乙烯， 的催化剂体系，包括A.下式的烷基硅氧烷衍生物，R1R4 | R2-Si-O-Al（1）| R3R5和B.三氯化钛型卤化钛化合物，三元组成分之间的Al / Ti比 在1到10之间。
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公开(公告)号：US4029875A
公开(公告)日：1977-06-14
申请号：US678748
申请日：1976-04-21
申请人： Pierre Gloriod , Jean Pierre Machon
发明人： Pierre Gloriod , Jean Pierre Machon
CPC分类号： C08F10/02
摘要： Radical polymerization of ethylene in the presence of an initiator and up to 500 ppm of a cyclic olefin having from 5 to 12 carbon atoms and a ring of 5 to 9 members or styrene and its alkyl homologues.
摘要翻译： 在引发剂存在下乙烯的自由基聚合和高达500ppm的具有5至12个碳原子的环烯烃和5至9个成员的环或苯乙烯及其烷基同系物。
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4.发明授权
公开(公告)号：US4191821A
公开(公告)日：1980-03-04
申请号：US923656
申请日：1978-07-11
申请人： Pierre Gloriod
发明人： Pierre Gloriod
IPC分类号： C08F2/00 , C08F2/34 , C08F6/00 , C08F6/06 , C08F6/28 , C08F10/00 , C08F10/02 , C08F110/02 , C08F210/02 , C08F220/42
CPC分类号： C08F6/28 , C08F10/02 , C08F110/02 , C08F210/02
摘要： A process for eliminating low molecular-weight polymers from the recirculating gases of facilities carrying out ethylene polymerization or copolymerization at a pressure of 300 to 2500 bars and a temperature of 130.degree. C. to 350.degree. C., in which facilities the mixture of monomer and polymer leaving the reactor is expanded into a separator operating under a pressure of 50 to 500 bars. The gases are passed, at a temperature at least 20.degree. C. higher than the melting point of the low molecular-weight polymers, through at least one standard cyclone at an inlet velocity between 1 and 10 m/s. The gases are then cooled to a temperature lower than the melting point of the low molecular-weight polymers, and are then passed through at least one heated cyclone at an inlet velocity between 2 and 20 m/s.
摘要翻译： 从在300至2500巴的压力和130至350℃的温度下进行乙烯聚合或共聚的设备的再循环气体中消除低分子量聚合物的方法，其中单体混合物 并且离开反应器的聚合物膨胀成在50至500巴的压力下操作的分离器。 气体在比低分子量聚合物的熔点至少高20℃的温度下通过至少一个标准旋风分离器，入口速度为1至10m / s。 然后将气体冷却至低于低分子量聚合物的熔点的温度，然后以2至20m / s的入口速度通过至少一个加热旋风分离器。
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5.发明授权
公开(公告)号：US4644044A
公开(公告)日：1987-02-17
申请号：US768444
申请日：1985-08-22
IPC分类号： C08F2/00 , C08F210/00 , C08F210/02 , C08F20/08
CPC分类号： C08F210/02 , C08F220/14 , C08F222/06
摘要： A process for the manufacture of radical ethylene terpolymers or copolymers comprising moieties derived from an alkyl (meth)acrylate and/or moieties derived from maleic anhydride by copolymerizing, in the presence of at least one free-radical initiator, a mixture of ethylene, (meth)acrylate and/or maleic anhydride in a device comprising a primary compressor, the delivery pressure of which is between 200 and 300 bars, connected to a secondary compressor which is connected directly to a polymerization reactor, fresh ethylene being fed at the intake of the said primary compressor and said copolymerization being carried out in the said polymerization reactor under a pressure of between 1,000 and 2,500 bars and at a temperature of between 140.degree. and 280.degree. C., wherein the feeding of the (meth)acrylate and/or maleic anhydride into the reactor if effected by introducing maleic anhydride and/or (meth)acrylate at the intake of the secondary compressor. In the case of terpolymers, maleic anhyride is introduced as a solution in the (meth)acrylate.The process of the invention has the advantage of not requiring a homogenization device before the entry of the monomers into the reactor.
摘要翻译： 一种制备自由基乙烯三元共聚物或共聚物的方法，其包含衍生自（甲基）丙烯酸烷基酯的部分和/或衍生自马来酸酐的部分，所述部分在至少一种自由基引发剂的存在下共聚合乙烯的混合物，（ 甲基丙烯酸酯和/或马来酸酐在包括初级压缩机的装置中，其主要压缩机的输送压力为200至300巴，连接到直接连接到聚合反应器的次级压缩机，新鲜的乙烯在进料口 所述初级压缩机和所述共聚在所述聚合反应器中在1000-2,500巴之间的压力和140-280℃的温度下进行，其中（甲基）丙烯酸酯和/或 如果通过在二次压缩机的入口处引入马来酸酐和/或（甲基）丙烯酸酯而进入反应器，则马来酸酐进入反应器。 在三元共聚物的情况下，马来酸酐以（甲基）丙烯酸酯的溶液形式引入。 本发明的方法具有在单体进入反应器之前不需要均化装置的优点。
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6.发明授权
公开(公告)号：US4617366A
公开(公告)日：1986-10-14
申请号：US768443
申请日：1985-08-22
IPC分类号： C08F2/02 , C08F2/00 , C08F2/04 , C08F2/34 , C08F10/00 , C08F210/00 , C08F210/02
CPC分类号： C08F210/02 , Y02P30/48
摘要： A process for the manufacture of radical ethylene terpolymers or copolymers comprising moieties derived from an alkyl (meth)acrylate and/or moieties derived from maleic anhydride by copolymerizing, in the presence of at least one free-radical initiator, a mixture of ethylene, (meth)acrylate and/or maleic anhydride in a device incorporating a primary compressor, the delivery pressure of which is between 200 and 300 bars, connected to a secondary compressor which is connected directly to a polymerization reactor, fresh ethylene being fed at the intake of the said primary compressor and said copolymerization being carried out in the said polymerization reactor under a pressure of between 1,000 and 2,500 bars and a temperature of between 140.degree. and 280.degree. C., wherein at least one the alkyl (meth)acrylate and/or maleic anhydride is fed directly into the said polymerization reactor.The process of the invention has the advantage of not requiring a homogenization device before the entry of the monomers into the reactor.
摘要翻译： 一种制备自由基乙烯三元共聚物或共聚物的方法，其包含衍生自（甲基）丙烯酸烷基酯的部分和/或衍生自马来酸酐的部分，在至少一种自由基引发剂的存在下，将乙烯的混合物（ 甲基丙烯酸酯和/或马来酸酐在装有初级压缩机的装置中，其输送压力在200至300巴之间，连接到直接连接到聚合反应器的二次压缩机，新鲜乙烯在进料口 所述初级压缩机和所述共聚反应在所述聚合反应器中在1000至2500巴之间的压力和140至280℃的温度下进行，其中至少一种（甲基）丙烯酸烷基酯和/或 将马来酸酐直接加入到所述聚合反应器中。 本发明的方法具有在单体进入反应器之前不需要均化装置的优点。
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公开(公告)号：US4342853A
公开(公告)日：1982-08-03
申请号：US164534
申请日：1980-07-02
申请人： Pierre Durand , Pierre Gloriod
发明人： Pierre Durand , Pierre Gloriod
CPC分类号： C08F6/28
摘要： The energy efficiency of a high pressure, high temperature continuous process for the production of polyethylene is improved and residual gases are more completely removed from the product without detriment to product quality by employing an intermediate separator between the first and second separators. The intermediate separator is maintained at a pressure between about 10 and 70 bars, and the second separator is maintained at a pressure between about 1 and 1.5 bars.
摘要翻译： 通过在第一和第二分离器之间采用中间分离器，提高了用于生产聚乙烯的高压，高温连续方法的能量效率，并且残留气体更完全地从产品中除去而不损害产品质量。 中间分离器保持在约10至70巴之间的压力下，并且第二分离器保持在约1至1.5巴之间的压力。
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