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    VERFAHREN ZUR HERSTELLUNG VON ISOCYANATEN
    4.
    发明公开
    VERFAHREN ZUR HERSTELLUNG VON ISOCYANATEN 有权

    公开(公告)号：EP2079684A1

    公开(公告)日：2009-07-22

    申请号：EP07822249.4

    申请日：2007-11-06

    申请人： BASF SE

    发明人： DAISS, Andreas ,  WÖLFERT, Andreas ,  KNÖSCHE, Carsten ,  STROEFER, Eckhard

    IPC分类号： C07C263/10 ,  C07C265/14

    CPC分类号： C07C263/10 ,  C07C265/14

    摘要： The invention relates to a method for producing isocyanates from the corresponding amines and phosgene by carrying out the reaction in the gas phase in at least one reaction zone and guiding the reaction mixture to at least one zone in which at least one liquid is injected to terminate the reaction, a zone with an expanded or constant cross-section being present between the reaction zone and the zone in which the reaction termination is brought about.

    摘要翻译： 本发明涉及由相应的胺和光气通过在至少一个反应区中在气相中进行反应并将反应混合物引导到至少一个区中的至少一个区中来制备异氰酸酯的方法，在所述区中注入至少一种液体以终止 反应，在反应区和引起反应终止的区之间存在具有扩大的或不变的横截面的区域。

    VERFAHREN ZUR HERSTELLUNG VON ISOCYANATEN
    9.
    发明公开
    VERFAHREN ZUR HERSTELLUNG VON ISOCYANATEN 有权
    用于生产ISOCYANATES

    公开(公告)号：EP2691364A1

    公开(公告)日：2014-02-05

    申请号：EP12710512.0

    申请日：2012-03-26

    申请人： BASF SE

    发明人： LEHR, Vanessa, Simone ,  MATTKE, Torsten ,  KNÖSCHE, Carsten ,  SCHELLING, Heiner ,  OLBERT, Gerhard

    IPC分类号： C07C263/10 ,  C01B7/04 ,  C07C265/00

    CPC分类号： C01B7/04 ,  C07C263/10 ,  C07C265/00

    摘要： The invention relates to a method for producing isocyanates by phosgenating the corresponding amines in the gas phase, characterized in that a reaction mixture containing phosgene from the gas-phase synthesis of carbon monoxide and chlorine to form phosgene, the gas-phase synthesis being driven at a stoichiometric excess of carbon monoxide with respect to chlorine, is divided into two streams by means of a thermal separating method and/or a membrane separating method, specifically into a first flow low in carbon monoxide, containing at most 1 wt% of carbon monoxide with respect to the total weight of the first flow low in carbon monoxide, and into a second flow high in carbon monoxide, containing more than 10 wt% of carbon monoxide with respect to the total weight of the second flow high in carbon monoxide, and that the first flow low in carbon monoxide is used as a reactant flow in the phosgenation of amines to form isocyanates in the gas phase.