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    Process for the preparation of isocyanates in the gas phase
    1.
    发明授权
    Process for the preparation of isocyanates in the gas phase 有权
    在气相中制备异氰酸酯的方法

    公开(公告)号：US09024057B2

    公开(公告)日：2015-05-05

    申请号：US12632117

    申请日：2009-12-07

    申请人： Klaus Biskup ,  Rainer Bruns ,  Wolfgang Lorenz ,  Fritz Pohl ,  Friedhelm Steffens ,  Volker Michele

    发明人： Klaus Biskup ,  Rainer Bruns ,  Wolfgang Lorenz ,  Fritz Pohl ,  Friedhelm Steffens ,  Volker Michele

    IPC分类号： C07C263/00 ,  C07C263/10

    CPC分类号： C07C263/10 ,  C07C265/14

    摘要： Aromatic isocyanates are produced by reacting one or more aromatic primary amines with phosgene in the gas phase. The phosgene and primary aromatic amine(s) are reacted at a temperature above the boiling temperature of the amine(s) in a reactor having a reaction space which is essentially rotationally symmetric to the direction of flow. The flow fate, averaged over the cross-section, of the reaction mixture along the axis of the essentially rotationally symmetric reaction space in the section of the reaction space in which the conversion of the amine groups into isocyanate groups is between 4 and 80% is not more than 8 m/sec. The flow rate averaged over the cross-section of the reaction mixture along the axis of the essentially rotationally symmetric reaction space in the section of the reaction space in which the conversion of the amine groups into isocyanate groups is 4 to 80% is always below the flow rate averaged over the cross-section at the start of this section.

    摘要翻译： 通过一种或多种芳族伯胺与气相中的光气反应制备芳族异氰酸酯。 光气和伯芳基胺在具有反应空间的反应器中在高于胺的沸点温度的温度下反应，反应空间基本上与流动方向旋转对称。 反应混合物沿着反应空间部分中基本上旋转对称的反应空间轴线的横截面平均流动，其中胺基转化为异氰酸酯基的反应空间为4-80％ 不超过8米/秒。 反应混合物的横截面上的平均流量在反应空间的基本上旋转对称的反应空间的轴上，其中胺基转化为异氰酸酯基团的部分总是低于 在本节开头的横截面上平均流量。

    Process for the manufacture of (poly-)isocyanates in the gas phase
    4.
    发明授权
    Process for the manufacture of (poly-)isocyanates in the gas phase 有权
    在气相中制造（多）异氰酸酯的方法

    公开(公告)号：US06974880B2

    公开(公告)日：2005-12-13

    申请号：US10780097

    申请日：2004-02-17

    申请人： Klaus Biskup ,  Peter Keldenich ,  Peter Fuhrmann ,  Christian Six

    发明人： Klaus Biskup ,  Peter Keldenich ,  Peter Fuhrmann ,  Christian Six

    IPC分类号： B01F5/04 ,  B01J10/00 ,  C07C263/10 ,  C07C265/14 ,  C07C263/00

    CPC分类号： B01F5/0453 ,  B01F5/0456 ,  B01J10/002 ,  C07C263/10 ,  C07C265/14

    摘要： The present invention relates to a process for the manufacture of diisocyanates by phosgenation of the corresponding diamines in which the vaporous diamines, optionally rarefied with an inert gas or with the vapors of an inert solvent, and phosgene are heated separately to temperatures of about 200° C. to about 600° C. and mixed and reacted in a tube reactor characterized in that a number n≧2 of nozzles directed parallel to the axis of the tube reactor are arranged in the tube reactor, the diamine-containing stream being fed into the tube reactor through the n nozzles and the phosgene stream being fed into the tube reactor through the remaining free space.

    摘要翻译： 本发明涉及通过相应的二胺的光气化制备二异氰酸酯的方法，其中将惰性气体或惰性溶剂的蒸气任选稀释的气态二胺和光气分别加热至约200℃的温度 在约600℃下，并在管式反应器中混合并反应，其特征在于，在管式反应器中排列平行于管式反应器轴线排列的n = 2的喷嘴，将含二胺的料流 通过n个喷嘴进入管式反应器，并且光气流通过剩余的自由空间进入管式反应器。

    Process for the preparation of toluylene diisocyanate, specific mixtures of toluylene diamine and water, and the use of toluylene diamine and water mixtures to prepare toluylene diisocyanate
    5.
    发明授权
    Process for the preparation of toluylene diisocyanate, specific mixtures of toluylene diamine and water, and the use of toluylene diamine and water mixtures to prepare toluylene diisocyanate 失效
    制备甲苯二异氰酸酯，甲苯二胺和水的特定混合物的方法，以及使用甲苯二胺和水混合物制备甲苯二异氰酸酯

    公开(公告)号：US5849947A

    公开(公告)日：1998-12-15

    申请号：US691222

    申请日：1996-08-01

    申请人： Klaus Biskup ,  Berthold Keggenhoff

    发明人： Klaus Biskup ,  Berthold Keggenhoff

    IPC分类号： C07C209/36 ,  C07C209/84 ,  C07C211/50 ,  C07C263/10 ,  C07C265/12 ,  C07C265/14

    CPC分类号： C07C209/36 ,  C07C209/84 ,  C07C263/10

    摘要： Toluylene diisocyanate is produced by nitration of toluene toy yield dinitrotoluene, hydrogenation of the dinitrotoluene, optionally in the presence of a solvent or diluent, to yield a crude solution of toluylene diamine and reaction water, processing the crude solution of toluylene diamine and water to yield an intermediate mixture of toluylene diamine and water wherein the processing is interrupted to result in a water content of about 1-40% by weight, preferably about 2-10% by weight of the intermediate mixture, transporting this intermediate mixture from a first production facility to a second production facility, whereat the intermediate mixture of TDA and water is completed to yield dry toluylene diamine of commercial quality, and followed by phosgenation of the toluylene diamine to give toluylene diisocyanate. It is optional to additionally process the dry toluylene diamine prior to phosgenation. The invention also relates to intermediate mixtures of toluylene diamine and water which have a solidification point of at most 95.degree. C., and the use of these intermediate mixtures for producing toluylene diisocyanate. It is preferable that the use of these intermediate mixtures to produce toluylene diisocyanate is performed at a site (or location) which is different from the site of production of the intermediate mixtures of toluylene diamine and water.

    摘要翻译： 甲苯二异氰酸酯通过硝化甲苯产生二硝基甲苯，任选在溶剂或稀释剂存在下二硝基甲苯的氢化，得到甲苯二胺和反应水的粗溶液，加工甲苯二胺和水的粗溶液，得到 甲苯二胺和水的中间体混合物，其中处理中断以产生约1-40重量％，优选约2-10重量％的中间体混合物的水含量，将该中间体混合物从第一生产设备 到达第二生产设施，其中TDA和水的中间体混合物完成以产生具有商业质量的干甲苯二胺，随后使甲苯二胺光气化，得到甲苯二异氰酸酯。 在光气化之前还可以加工干甲苯二胺。 本发明还涉及固化点至多为95℃的甲苯二胺和水的中间体混合物，以及这些中间体混合物用于生产甲苯二异氰酸酯的用途。 优选使用这些中间体混合物来制备甲苯二异氰酸酯是在与甲苯二胺和水的中间体混合物的生产位置不同的位置（或位置）进行的。

    PROCESS FOR THE PREPARATION OF ISOCYANATES IN THE GAS PHASE
    9.
    发明申请
    PROCESS FOR THE PREPARATION OF ISOCYANATES IN THE GAS PHASE 有权
    在气相中制备异氰酸酯的方法

    公开(公告)号：US20100152484A1

    公开(公告)日：2010-06-17

    申请号：US12632117

    申请日：2009-12-07

    申请人： Klaus Biskup ,  Rainer Bruns ,  Wolfgang Lorenz ,  Fritz Pohl ,  Friedhelm Steffens ,  Volker Michele

    发明人： Klaus Biskup ,  Rainer Bruns ,  Wolfgang Lorenz ,  Fritz Pohl ,  Friedhelm Steffens ,  Volker Michele

    IPC分类号： C07C263/10

    CPC分类号： C07C263/10 ,  C07C265/14

    摘要： Aromatic isocyanates are produced by reacting one or more aromatic primary amines with phosgene in the gas phase. The phosgene and primary aromatic amine(s) are reacted at a temperature above the boiling temperature of the amine(s) in a reactor having a reaction space which is essentially rotationally symmetric to the direction of flow. The flow fate, averaged over the cross-section, of the reaction mixture along the axis of the essentially rotationally symmetric reaction space in the section of the reaction space in which the conversion of the amine groups into isocyanate groups is between 4 and 80 % is not more than 8 m/sec. The flow rate averaged over the cross-section of the reaction mixture along the axis of the essentially rotationally symmetric reaction space in the section of the reaction space in which the conversion of the amine groups into isocyanate groups is 4 to 80 % is always below the flow rate averaged over the cross-section at the start of this section.

    摘要翻译： 通过一种或多种芳族伯胺与气相中的光气反应制备芳族异氰酸酯。 光气和伯芳基胺在具有反应空间的反应器中在高于胺的沸点温度的温度下反应，反应空间基本上与流动方向旋转对称。 反应混合物沿着反应空间部分中基本上旋转对称的反应空间轴线的横截面平均流动，其中胺基转化为异氰酸酯基的反应空间为4-80％ 不超过8米/秒。 反应混合物的横截面上的平均流量在反应空间的基本上旋转对称的反应空间的轴上，其中胺基转化为异氰酸酯基团的部分总是低于 在本节开头的横截面上平均流量。