Process for separating vinyl esters from a gas stream comprising ethylene and vinyl esters
    5.
    发明授权
    Process for separating vinyl esters from a gas stream comprising ethylene and vinyl esters 有权
    从包含乙烯和乙烯基酯的气流中分离乙烯基酯的方法

    公开(公告)号:US09272979B2

    公开(公告)日:2016-03-01

    申请号:US14654100

    申请日:2013-12-16

    摘要: A process for separating esters of vinyl alcohol from a gas stream comprising from 70 to 99.5% by weight of ethylene and from 0.5 to 30% by weight of esters of vinyl alcohol being at a pressure in the range of from 0.5 MPa to 10 MPa and a temperature in the range of from 5° C. to 50° C.; and a process for copolymerizing ethylene and esters of vinyl alcohol in the presence of free-radical polymerization initiators at pressures in the range of from 110 MPa to 500 MPa and temperatures in the range of from 100° C. to 350° C. in a continuously operated polymerization apparatus comprising such a process for separating esters of vinyl alcohol from a gas stream comprising from 70 to 99.5% by weight of ethylene and from 0.5 to 30% by weight of esters of vinyl alcohol.

    摘要翻译: 一种从气流中分离乙烯醇的酯的方法,包括70至99.5重量%的乙烯和0.5至30重量%的乙烯醇的酯在0.5MPa至10MPa的压力范围内,以及 温度范围为5℃至50℃; 以及在自由基聚合引发剂的存在下,在110MPa至500MPa的压力和100℃至350℃的温度范围内,乙烯醇的乙烯和酯的共聚合方法, 连续操作的聚合装置包括这样一种从含有70-99.5%(重量)乙烯和0.5-30%(重量)乙烯醇酯的气流中分离乙烯醇酯的方法。

    PROCESS FOR SEPARATING VINYL ESTERS FROM A GAS STREAM COMPRISING ETHYLENE AND VINYL ESTERS
    6.
    发明申请
    PROCESS FOR SEPARATING VINYL ESTERS FROM A GAS STREAM COMPRISING ETHYLENE AND VINYL ESTERS 有权
    从包含乙烯和乙烯酯的气流分离乙烯醇的方法

    公开(公告)号:US20150315119A1

    公开(公告)日:2015-11-05

    申请号:US14654100

    申请日:2013-12-16

    IPC分类号: C07C67/52 C08F210/02

    摘要: Process for separating esters of vinyl alcohol from a gas stream comprising from 70 to 99.5% by weight of ethylene and from 0.5 to 30% by weight of esters of vinyl alcohol being at a pressure in the range of from 0.5 MPa to 10 MPa and a temperature in the range of from 5° C. to 50° C. comprising the steps of a) cooling the gas stream in a first heat exchanger by means of a cooling medium to a temperature of from −5° C. to 40° C.; b) withdrawing the not condensed part of the gas stream from the first heat exchanger and transferring it to a second heat exchanger; c) cooling the gas stream in the second heat exchanger to a temperature of from −20° C. to 5° C.; d) withdrawing the not condensed part of the gas stream from the second heat exchanger, reducing the pressure of the gas stream to from 0.5 MPa to 3 MPa and transferring it to a separation vessel; e) withdrawing the not condensed part of the gas stream from the separation vessel and transferring it as cooling medium to the second heat exchanger; and f) withdrawing the cooling medium as ethylene gas stream with a reduced content of esters of vinyl alcohol from the second heat exchanger, and process for copolymerizing ethylene and esters of vinyl alcohol in the presence of free-radical polymerization initiators at pressures in the range of from 110 MPa to 500 MPa and temperatures in the range of from 100° C. to 350° C. in a continuously operated polymerization apparatus comprising such a process for separating esters of vinyl alcohol from a gas stream comprising from 70 to 99.5% by weight of ethylene and from 0.5 to 30% by weight of esters of vinyl alcohol.

    摘要翻译: 从乙烯醇的70〜99.5重量%的乙烯和0.5〜30重量%的乙烯醇的酯在0.5MPa〜10MPa的压力范围内分离乙烯醇的酯的方法, 温度在5℃至50℃的范围内,包括以下步骤:a)通过冷却介质将第一热交换器中的气流冷却至-5℃至40℃的温度 。 b)从第一热交换器中取出气流的未冷凝部分并将其转移到第二热交换器; c)将第二热交换器中的气流冷却至-20℃至5℃的温度; d)从第二热交换器中取出气流的未冷凝部分,将气流的压力降至0.5MPa至3MPa并将其转移至分离容器; e)从分离容器中取出气流的未冷凝部分并将其作为冷却介质转移到第二热交换器; 以及f)将来自第二热交换器的乙烯醇酯含量降低的乙烯气流作为乙烯气流取出,以及在自由基聚合引发剂的存在下在乙烯醇的存在下共聚乙烯醇和乙烯醇酯的方法, 在连续操作的聚合装置中,从110MPa到500MPa的温度和在100℃至350℃的温度范围内,包括这样一种将乙烯醇的酯从气流中分离的方法,该气流包含70-99.5%的 乙烯重量和0.5至30%重量的乙烯醇酯。

    PROCESS FOR SEPARATING COMPONENTS OF A REACTION MIXTURE OBTAINED BY HIGH-PRESSURE POLYMERIZATION OF ETHYLENICALLY UNSATURATED MONOMERS
    10.
    发明申请
    PROCESS FOR SEPARATING COMPONENTS OF A REACTION MIXTURE OBTAINED BY HIGH-PRESSURE POLYMERIZATION OF ETHYLENICALLY UNSATURATED MONOMERS 有权
    用于分离由乙烯基不饱和单体的高压聚合获得的反应混合物组分的方法

    公开(公告)号:US20160311939A1

    公开(公告)日:2016-10-27

    申请号:US15101351

    申请日:2014-12-03

    IPC分类号: C08F6/12 C08F6/10 C08F2/01

    摘要: The present disclosure relates to a 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 into in a gaseous fraction and a liquid fraction, 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. in a separation vessel which has a vertically arranged cylindrical shape with a ratio of length to diameter L/D of from 4 to 10 and which is equipped with an inlet pipe which 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.

    摘要翻译: 本公开内容涉及通过在自由基聚合引发剂存在下将烯键式不饱和单体高压聚合得到的反应混合物中的聚合物和气态组分分离成气态馏分和液体馏分的方法,其中分离 在具有垂直排列的圆柱形状的分离容器中,在15MPa至50MPa的压力和120℃至300℃的温度下进行,长度与直径L / D的比率为4 至10,并且其具有从顶部垂直延伸到分离容器中的入口管; 并且其下端的入口管的内径与其圆柱形部分中的分离容器的内径的比率在0.2至0.4的范围内。