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    VERFAHREN ZUM BETREIBEN EINER GASPHASENPHOSGENIERUNGSANLAGE
    4.
    发明公开
    VERFAHREN ZUM BETREIBEN EINER GASPHASENPHOSGENIERUNGSANLAGE 有权
    人力资源部

    公开(公告)号：EP3122719A1

    公开(公告)日：2017-02-01

    申请号：EP15711536.1

    申请日：2015-03-24

    申请人： Covestro Deutschland AG

    发明人： KNAUF, Thomas ,  LORENZ, Wolfgang ,  STEFFENS, Friedhelm ,  BRUNS, Rainer ,  TAUBE, Wolfgang

    IPC分类号： C07C263/10 ,  C07C265/14

    CPC分类号： C07C263/10 ,  B01J12/005 ,  C01B32/80 ,  C07C263/20 ,  C07C265/14

    摘要： The invention relates to a method for operating a gas-phase phosgenation plant (100) for reacting an amine (2) with phosgene (1) to give the corresponding isocyanate (4), wherein in order to start up the gas-phase phosgenation plant (100), said plant is first charged with phosgene. At the same time as, or after the first charge of phosgene, the amine supply devices are rendered inert using a hot inert gas stream (30). Only thereafter is amine admixed for the first time. In this way, and by maintaining a pressure drop in the amine and phosgene supply devices to the mixing zone, a back mixing of phosgene into the amine-containing reactant stream during start-up is prevented.

    摘要翻译： 本发明涉及一种操作用于使胺（2）与光气（1）反应以得到相应的异氰酸酯（4）的气相光气化装置（100）的方法，其中为了启动气相光气化装置 （100），所述植物首先装载光气。 在第一次加入光气的同时或之后，使用热惰性气流（30）使胺供应装置呈惰性。 之后只有胺混合第一次。 以这种方式，并且通过保持胺和光气供应装置中到混合区的压降，防止了在启动期间将光气反向混入含胺反应物流中。

    METHOD FOR PRODUCING XYLYLENE DIISOCYANATE AND DEVICE FOR PRODUCING XYLYLENE DIISOCYANATE
    5.
    发明公开
    METHOD FOR PRODUCING XYLYLENE DIISOCYANATE AND DEVICE FOR PRODUCING XYLYLENE DIISOCYANATE 有权
    用于生产苯二甲基二和器具，用于产生苯二甲基

    公开(公告)号：EP2982664A4

    公开(公告)日：2016-11-16

    申请号：EP14778071

    申请日：2014-03-28

    申请人： MITSUI CHEMICALS INC

    发明人： TAKAMATSU KOJI ,  SONE HIDEKI ,  SASAKI MASAAKI

    IPC分类号： C07C263/04 ,  C07C263/20 ,  C07C265/14

    CPC分类号： C07C263/04 ,  B01J19/24 ,  B01J2219/24 ,  C07C263/20 ,  C07C265/14

    摘要： A method for producing xylylene diisocyanate includes a thermal decomposition step of thermally decomposing xylylene dicarbamate; a first separation step of separating, from the thermal decomposition product obtained in the thermal decomposition step, an isocyanate-containing component containing xylylene diisocyanate as a main component and an alcohol-containing component containing alcohol as a main component and containing xylylene diisocyanate as a subcomponent; a second separation step of separating xylylene dicarbamate and alcohol from the alcohol-containing component obtained in the first separation step; and a returning step of returning xylylene dicarbamate obtained in the second separation step to the thermal decomposition step.

    VERFAHREN ZUR GEWINNUNG VON ORGANISCHEN ISOCYANATEN AUS DESTILLATIONSRÜCKSTÄNDEN DER ISOCYANATHERSTELLUNG
    9.
    发明公开
    VERFAHREN ZUR GEWINNUNG VON ORGANISCHEN ISOCYANATEN AUS DESTILLATIONSRÜCKSTÄNDEN DER ISOCYANATHERSTELLUNG 有权
    PROCESS FOR从蒸馏残余物的异氰酸酯生产OBTAINING有机异氰酸酯

    公开(公告)号：EP3036217A1

    公开(公告)日：2016-06-29

    申请号：EP14750749.5

    申请日：2014-08-14

    申请人： Covestro Deutschland AG

    发明人： TIDOW, Klaus ,  HECKING, Andreas ,  BUSCH, Jan ,  RICHTER, Frank ,  STEFFENS, Friedhelm

    IPC分类号： C07C263/20 ,  C07C265/14

    CPC分类号： C07C263/20 ,  C07C265/14

    摘要： The present invention relates to a process for obtaining an organic isocyanate from a phosgenation product comprising the isocyanate, comprising the following steps: a) workup of the phosgenation product, the workup comprising at least one distillation step in which a first portion of the organic isocyanate is removed as distillate and a distillation residue comprising a second portion of the organic isocyanate is obtained, b) workup of the distillation residue obtained in a), the workup comprising at least one distillation step which is conducted at a temperature of up to 110°C at a pressure of not more than 1 mbar, wherein at least 50% by weight of the second portion of the organic isocyanate is removed from the distillation residue.

    摘要翻译： 本发明涉及一种用于从光气化产物获取有机异氰酸酯包括异氰酸酯，其包含以下步骤：a）后处理，以光气化产物，所述后处理包括至少一个蒸馏步骤，其中有机异氰酸酯的第一部分是 作为馏出物取出并蒸馏残余物，其包括有机异氰酸酯的第二部分获得，b）以A中得到的蒸馏残余物）的后处理，后处理包括至少一个蒸馏步骤的所有其在高达110℃的温度下进行 。在不超过1毫巴，worin至少50％的重量的有机异氰酸酯的第二部分的压力从蒸馏残余物除去。

    A process for extracting phosgene
    10.
    发明公开
    A process for extracting phosgene 审中-公开
    Verfahren zur Extraktion von Phosgen

    公开(公告)号：EP2907562A1

    公开(公告)日：2015-08-19

    申请号：EP14154766.1

    申请日：2014-02-12

    申请人： Huntsman International LLC ,  Huntsman (Europe) BVBA

    发明人： The designation of the inventor has not yet been filed

    IPC分类号： B01D53/22 ,  C07C263/10

    CPC分类号： C01B32/80 ,  B01D53/228 ,  B01D61/246 ,  B01D71/26 ,  B01D71/34 ,  B01D71/36 ,  B01D71/70 ,  B01D2257/93 ,  B01D2311/25 ,  B01D2325/38 ,  C07C263/10 ,  C07C263/20 ,  C07C2601/14 ,  Y02P20/582 ,  C07C265/14

    摘要： A process for extracting a phosgene compound, comprising providing a membrane extracting unit comprising at least one extracting cell that comprises at least one membrane contactor module having at least two sides, a gas side and a liquid side; letting an initial gas stream comprising a phosgene compound flow on the gas side of the membrane contactor module; and letting an extractant liquid stream, suitable for dissolving a phosgene compound, flow on the liquid side of the membrane contactor module so that the extractant liquid stream absorbs the phosgene compound from the initial gas stream and provides a second extractant liquid stream enriched with the phosgene compound.

    摘要翻译： 一种提取光气化合物的方法，包括提供膜提取单元，所述膜提取单元包括至少一个提取池，所述萃取池包括至少一个具有至少两个侧面的膜接触器模块，气体侧和液体侧; 使包含光气化合物的初始气流在膜接触器模块的气体侧流动; 并且使适合于溶解光气化合物的萃取剂液体流在膜接触器模块的液体侧流动，使得萃取液体流从初始气流吸收光气化合物，并提供富含光气的第二萃取剂液体流 复合。