METHOD FOR PREPARING ELASTIC TERPOLYMER
    12.
    发明公开
    METHOD FOR PREPARING ELASTIC TERPOLYMER 有权
    VERFAHREN ZUR HERSTELLUNG EINES ELASTISCHEN TERPOLYMERS

    公开(公告)号:EP3000832A4

    公开(公告)日:2017-01-04

    申请号:EP13886690

    申请日:2013-10-14

    申请人: LG CHEMICAL LTD

    摘要: The present invention relates to a method of preparing an ethylene/alpha-olefin/diene-based elastic copolymer having high viscosity and a high molecular weight, in which energy efficiency of the entire process is optimized. The method of preparing the elastic copolymer includes the steps of: copolymerizing an ethylene/alpha-olefin/diene-based elastic copolymer; and separating and removing the solvent and unreacted monomers from the polymer solution and recovering the elastic copolymer, by sequentially using a gas-liquid separator and a stripper in the purification of the solvent and unreacted monomers.

    摘要翻译: 本发明涉及一种制备具有高粘度和高分子量的乙烯/α-烯烃/二烯类弹性共聚物的方法,其中优化了整个工艺的能量效率。 制备弹性共聚物的方法包括以下步骤:使乙烯/α-烯烃/二烯类弹性共聚物共聚; 并从聚合物溶液中分离除去溶剂和未反应的单体,并通过在溶剂和未反应单体的纯化中依次使用气 - 液分离器和汽提器回收弹性共聚物。

    PROCESS FOR SEPARATING COMPONENTS OF A REACTION MIXTURE OBTAINED BY HIGH-PRESSURE POLYMERIZATION OF ETHYLENICALLY UNSATURATED MONOMERS
    14.
    发明公开
    PROCESS FOR SEPARATING COMPONENTS OF A REACTION MIXTURE OBTAINED BY HIGH-PRESSURE POLYMERIZATION OF ETHYLENICALLY UNSATURATED MONOMERS 有权
    PROCESS FOR通过烯属不饱和单体的高压聚合的反应混合物的组分的分离

    公开(公告)号:EP3077423A1

    公开(公告)日:2016-10-12

    申请号:EP14809799.1

    申请日:2014-12-03

    摘要: Process for separating polymeric and gaseous components of a reaction mixture obtained by high-pressure polymerization of ethylenically unsaturated monomers in the presence of free-radical polymerization initiators, the process comprising the steps of entering the reaction mixture into a separation vessel; separating the reaction mixture into in a gaseous fraction and a liquid fraction; and withdrawing the gaseous fraction from the top of the separation vessel and withdrawing the liquid fraction from the bottom of the separation vessel, wherein the separation is carried out at a pressure of from 15 MPa to 50 MPa and a temperature of from 120°C to 300°C; the separation vessel has a vertically arranged cylindrical shape with a ratio of length to diameter L/D of from 4 to 10 and is equipped with an inlet pipe for introducing the reaction mixture into the separation vessel; the inlet pipe extends vertically from the top into the separation vessel; and the ratio of the inner diameter of the inlet pipe at its lower end and the inner diameter of the separating vessel in its cylindrical part is in the range of from 0.2 to 0.4 and process for preparing ethylene homopolymers or copolymers from ethylenically unsaturated monomers in the presence of free-radical polymerization initiators at temperatures from 100°C to 350°C and pressures in the range of from 110 MPa to 500 MPa in a polymerization reactor comprising a such process for separating polymeric and gaseous components.

    摘要翻译: 本公开涉及一种用于在一个气体馏分和液体馏分通过在自由基聚合引发剂的存在下烯属不饱和单体的高压聚合得到的反应混合物的聚合和气态组分分离成,worin分离是 在15兆帕至50兆帕的压力和120℃至300℃的在分离容器具有带有长度与直径L的比率的垂直布置的圆筒状的温度下进行从4的出/ D 至10和所有其配备有在从顶到分离容器垂直地延伸进水管; 和在其下端的入口管和分离容器在其筒状部的内径的内径的比率是在0.2至0.4的范围内。

    METHOD FOR MANUFACTURING MODIFIED POLYMER AND HYDROGEN ADDUCT THEREOF
    19.
    发明公开
    METHOD FOR MANUFACTURING MODIFIED POLYMER AND HYDROGEN ADDUCT THEREOF 有权
    VERFAHREN ZUR HERSTELLUNG VON改性聚合物在WASSERSTOFFADDUKT DARAUS

    公开(公告)号:EP2789633A1

    公开(公告)日:2014-10-15

    申请号:EP12855910.1

    申请日:2012-11-12

    申请人: JSR Corporation

    摘要: Provided is a method for manufacturing a modified polymer or hydrogen adduct thereof, the method allowing components that inhibit polymerization to be removed and the remaining part to be reused as a polymerization solvent. The method involves manufacturing a modified polymer having at least one functional group in a main chain or a side chain, obtained by polymerizing with a conjugate diene and/or aromatic vinyl compound as the monomer and an active organic metal as the polymerization initiator, in the presence of a hydrocarbon-based solvent that is used as the polymerization solvent; or manufacturing a hydrogen adduct of the modified polymer. The method comprises, in sequence: (a) a solvent removal step for separating the reaction solution where the modified polymer or hydrogen adduct is dissolved in the polymerization solvent into a solvent fraction containing the hydrocarbon-based solvent and a solid fraction containing the modified polymer, or the like; (b) a low-boiling fraction separating step for distilling the solvent fraction and separating the hydrocarbon-based solvent from the low-boiling fraction containing a silanol compound; and (c) a silanol removing step for removing at least a portion of the silanol compound from the low-boiling fraction by liquid-liquid extraction using the low-boiling fraction and an extraction solvent. Furthermore, at least a portion of the extract solution where the silanol compound has been removed by liquid-liquid extraction is reused as a polymerization solvent.

    摘要翻译: 提供一种制备改性聚合物或其氢加成物的方法,允许除去抑制聚合的组分和剩余部分作为聚合溶剂重复使用的方法。 该方法包括制备在主链或侧链中具有至少一个官能团的改性聚合物,其通过在共轭二烯和/或芳族乙烯基化合物作为单体和作为聚合引发剂的活性有机金属进行聚合而获得, 存在用作聚合溶剂的烃基溶剂; 或制造改性聚合物的氢加合物。 该方法依次包括:(a)溶剂去除步骤,用于将改性聚合物或氢加合物溶解在聚合溶剂中的反应溶液分离成含有烃系溶剂的溶剂馏分和含有改性聚合物的固体部分 ,等等; (b)低沸点馏分分离步骤,用于蒸馏溶剂馏分并从含有硅烷醇化合物的低沸点馏分中分离烃类溶剂; 和(c)通过使用低沸点馏分和萃取溶剂的液 - 液萃取从低沸点馏分中除去至少一部分硅烷醇化合物的硅烷醇去除步骤。 此外,将通过液 - 液萃取除去硅烷醇化合物的提取液的至少一部分再次用作聚合溶剂。

    PROCESS FOR RECYCLING PRODUCT STREAMS SEPARATED FROM A HYDROCARBON-CONTAINING FEED STREAM
    20.
    发明公开
    PROCESS FOR RECYCLING PRODUCT STREAMS SEPARATED FROM A HYDROCARBON-CONTAINING FEED STREAM 有权
    用于恢复产物流含烃供应电力的方法已被分离

    公开(公告)号:EP2475688A1

    公开(公告)日:2012-07-18

    申请号:EP10784248.6

    申请日:2010-09-10

    IPC分类号: C08F6/04 C07C7/04 B01D3/14

    摘要: The present invention relates to a process for recycling product streams that have been separated from a hydrocarbon-containing feed stream comprising olefin monomer, olefin co-monomer, hydrocarbon diluent and components such as H
    2 , N
    2 , O
    2 , CO, CO
    2 , and formaldehyde. In accordance with the present process a hydrocarbon-containing feed stream is separated into a) a first side stream comprising hydrocarbon diluent and olefin monomer; b) a second side stream which is substantially hydrogen-free and comprises hydrocarbon diluent and olefin monomer, c) a bottom stream comprising substantially olefin-free hydrocarbon diluent, and d) an overhead vapor stream comprising olefin monomer, hydrocarbon diluent and components such as formaldehyde, H
    2 , N
    2 , O
    2 , CO and CO
    2 . The present process further includes recycling said first and said second side streams in a polymerization process for preparing bimodal polyolefin.