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    PROCESS AND APPARATUS FOR PREPARING ISOCYANATES
    5.
    发明申请
    PROCESS AND APPARATUS FOR PREPARING ISOCYANATES 有权
    制备异氰酸酯的方法和装置

    公开(公告)号：US20120004446A1

    公开(公告)日：2012-01-05

    申请号：US13256541

    申请日：2010-03-18

    申请人： Torsten Mattke ,  Carsten Knoesche ,  Bernd Rumpf ,  Eckhard Stroefer

    发明人： Torsten Mattke ,  Carsten Knoesche ,  Bernd Rumpf ,  Eckhard Stroefer

    IPC分类号： C07C263/10 ,  B01J19/00

    CPC分类号： C07B43/10 ,  B01J2219/00873 ,  C07C263/10 ,  F28D7/00 ,  F28D13/00 ,  C07C265/14 ,  C07C265/00

    摘要： The invention relates to a process for preparing isocyanates by reacting the corresponding amines with phosgene in the gas phase, optionally in the presence of an inert medium, in which phosgene and amine are first evaporated and then superheated further to reaction temperature, and the superheated phosgene and amine are mixed and fed to a reactor in which the phosgene and the amine are converted to the isocyanate, wherein the residence time of the phosgene at temperatures greater than 300° C. is not more than 5 s, and/or the temperature of heat transfer surfaces in contact with phosgene is not more than 20 K above the phosgene temperature to be established. The invention further relates to an apparatus for preparing isocyanates by reacting the corresponding amines with phosgene in the gas phase.

    摘要翻译： 本发明涉及通过使气相中相应的胺与光气反应制备异氰酸酯的方法，任选地在惰性介质存在下，首先将光气和胺蒸发，然后进一步过热至反应温度，过热的光气 和胺混合并加入到光气和胺转化为异氰酸酯的反应器中，其中光气在大于300℃的温度下的停留时间不超过5秒，和/或 与光气接触的传热表面不超过要建立的光气温度20K。 本发明还涉及通过气相中相应的胺与光气反应制备异氰酸酯的装置。

    Process and apparatus for preparing isocyanates
    6.
    发明授权
    Process and apparatus for preparing isocyanates 有权
    制备异氰酸酯的方法和装置

    公开(公告)号：US09006481B2

    公开(公告)日：2015-04-14

    申请号：US13256541

    申请日：2010-03-18

    申请人： Torsten Mattke ,  Carsten Knoesche ,  Bernd Rumpf ,  Eckhard Stroefer

    发明人： Torsten Mattke ,  Carsten Knoesche ,  Bernd Rumpf ,  Eckhard Stroefer

    IPC分类号： C07C263/00 ,  C07B43/10 ,  C07C263/10 ,  F28D7/00 ,  F28D13/00

    CPC分类号： C07B43/10 ,  B01J2219/00873 ,  C07C263/10 ,  F28D7/00 ,  F28D13/00 ,  C07C265/14 ,  C07C265/00

    摘要： The invention relates to a process for preparing isocyanates by reacting the corresponding amines with phosgene in the gas phase, optionally in the presence of an inert medium, in which phosgene and amine are first evaporated and then superheated further to reaction temperature, and the superheated phosgene and amine are mixed and fed to a reactor in which the phosgene and the amine are converted to the isocyanate, wherein the residence time of the phosgene at temperatures greater than 300° C. is not more than 5 s, and/or the temperature of heat transfer surfaces in contact with phosgene is not more than 20 K above the phosgene temperature to be established. The invention further relates to an apparatus for preparing isocyanates by reacting the corresponding amines with phosgene in the gas phase.

    摘要翻译： 本发明涉及通过使气相中相应的胺与光气反应制备异氰酸酯的方法，任选地在惰性介质存在下，首先将光气和胺蒸发，然后进一步过热至反应温度，过热的光气 和胺混合并加入到光气和胺转化为异氰酸酯的反应器中，其中光气在大于300℃的温度下的停留时间不超过5秒，和/或 与光气接触的传热表面不超过要建立的光气温度20K。 本发明还涉及通过气相中相应的胺与光气反应制备异氰酸酯的装置。