公开(公告)号：US20110036702A1

公开(公告)日：2011-02-17

申请号：US12911200

申请日：2010-10-25

申请人： Juan HERGUIJUELA ,  Warner Pietzonka ,  Angela Wildermann ,  Thomas Wolf

发明人： Juan HERGUIJUELA ,  Warner Pietzonka ,  Angela Wildermann ,  Thomas Wolf

IPC分类号： B01D3/26

CPC分类号： B01D3/143 ,  B01D3/32 ,  B01D5/0063 ,  C07D311/72

摘要： According to the invention, a process for the rectification of mixtures of high-boiling air- and/or temperature-sensitive substances which require a high separation efficiency is proposed, in particular a process for the working-up of a VE- or VEA-containing product stream. The process is characterized in particular in that, in a first purification stage, low-boiling products and unspecified isomers of the useful product are separated from the product stream virtually without loss of useful product and that, in a second purification stage, the useful product is removed in a stream having a purity of >97% by weight and a further stream having a purity of >92% by weight. A preferred embodiment of the process serves for working up VEA, in which the loss of useful product in the first purification stage is less than 5%, based on that amount of VEA in the feed which is added to the purification stage per unit time. Furthermore, the first purification stage may comprise a rectification column (1), from the top (1a) of which the low-boiling products and the unspecified isomers of VEA are taken off, a stream containing the useful product in purified form being taken off at the side (15) and/or at the bottom (1b) of the column (1).

摘要翻译： 根据本发明，提出了需要高分离效率的高沸点空气和/或温度敏感物质的混合物的精馏方法，特别是用于处理VE-或VEA- 含有产品流。 该方法的特征在于，在第一纯化阶段中，将有用产物的低沸点产物和未指定的异构体与产物流分离，实际上不损失有用的产物，并且在第二纯化阶段中，有用的产物 在纯度> 97％重量的物流中除去，另一种纯度> 92％（重量）的物流。 该方法的优选实施方案用于处理VEA，其中基于每单位时间添加到纯化阶段的进料中的VEA量，第一纯化阶段中有用产物的损失小于5％。 此外，第一纯化阶段可以包括精馏塔（1），从其顶部（1a）排出低沸点产物和VEA的未指定的异构体，将含有纯化形式的有用产物的料流取出 在塔（1）的侧面（15）和/或底部（1b）处。

公开(公告)号：US20130284581A1

公开(公告)日：2013-10-31

申请号：US13854704

申请日：2013-04-01

申请人： Juan HERGUIJUELA ,  Werner PIETZONKA ,  Angela WILDERMANN ,  Thomas WOLF

发明人： Juan HERGUIJUELA ,  Werner PIETZONKA ,  Angela WILDERMANN ,  Thomas WOLF

IPC分类号： B01D3/14

CPC分类号： B01D3/143 ,  B01D3/32 ,  B01D5/0063 ,  C07D311/72

摘要： A process for the rectification of mixtures of high-boiling air- and/or temperature-sensitive substances which require a high separation efficiency is proposed, in particular a process for the working-up of a VE- or VEA-containing product stream. The process includes a first purification stage to separate low-boiling products and unspecified isomers of the useful product from the product stream virtually without loss of useful product and a second purification stage for removing the useful product in a stream having a purity of >97% by weight and a further stream having a purity of >92% by weight.

摘要翻译： 提出了需要高分离效率的高沸点空气和/或温度敏感物质的混合物的精馏方法，特别是用于处理含VE或VEA的产物流的方法。 该方法包括第一纯化阶段，从实际上将产物流中的有用产物的低沸点产物和未指定的异构体实质上分离出来，实际上不损失有用的产物，以及用纯度> 97％的流除去有用产物的第二纯化阶段， 和另外的纯度> 92重量％的料流。