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11 条记录 (耗时 0.028 秒)

    Method for the distillative separation of a mixture containing vinyl ether and alchol
    9.
    发明授权
    Method for the distillative separation of a mixture containing vinyl ether and alchol 失效
    含有乙烯基醚和醇的混合物的蒸馏分离方法

    公开(公告)号：US07670464B2

    公开(公告)日：2010-03-02

    申请号：US10560135

    申请日：2004-06-08

    申请人： Katrin Klass ,  Heike Becker ,  Regina Vogelsang ,  Alexander Hauk ,  Markus Siegert ,  Jochem Henkelmann

    发明人： Katrin Klass ,  Heike Becker ,  Regina Vogelsang ,  Alexander Hauk ,  Markus Siegert ,  Jochem Henkelmann

    IPC分类号： B01D3/36 ,  C07C29/82 ,  C07C41/42 ,  C07C43/16 ,  C07C41/08

    CPC分类号： C07C29/82 ,  C07C41/08 ,  C07C41/42 ,  Y10S203/20 ,  C07C43/16 ,  C07C31/08 ,  C07C31/10 ,  C07C31/12

    摘要： Process for distillatively separating a mixture containing a vinyl ether of the general formula (I) R1—O—CH═CH2  (I) and alcohol of the general formula (II) R2—OH  (II) in which R1 and R2 are each independently a saturated or unsaturated, aliphatic or cycloaliphatic radical having from 2 to 10 carbon atoms, and in which the alcohol (II) has a boiling point which is at least 1° C. higher, measured at or extrapolated to 0.1 MPa abs, than the vinyl ether (I), by a) passing the mixture into a first distillation column and withdrawing, as a top product, an azeotrope containing vinyl ether (I) and alcohol (II) and, as a bottom product, a stream enriched with the alcohol (II); b) passing the azeotrope containing vinyl ether (I) and alcohol (II) from the first distillation column into a second distillation column which is operated at a pressure which is from 0.01 to 3 MPa higher compared to the first distillation column, and withdrawing, as a bottom product or gaseous sidestream in the stripping section, the vinyl ether (I) and, as a top product, an azeotrope containing vinyl ether (I) and alcohol (II); and c) recycling the azeotrope containing vinyl ether (I) and alcohol (II) from the second distillation column into the first distillation column.

    摘要翻译： 蒸馏分离含有通式（I）的R 1 -O-CH = CH 2（I）的乙烯基醚和通式（II）的醇R 2 -OH（II）的混合物的混合物，其中R 1和R 2各自独立地 具有2至10个碳原子的饱和或不饱和的脂肪族或脂环族基团，其中醇（II）的沸点至少为1℃，高于或者外推至0.1MPa abs，比 乙烯基醚（I），通过a）将混合物通入第一蒸馏塔并作为顶部产物取出含乙烯基醚（I）和醇（II）的共沸物，并且作为底部产物，富含 酒精（II）; b）将含有乙烯基醚（I）和乙醇（II）的共沸物从第一蒸馏塔送入第二蒸馏塔，其与第一蒸馏塔相比压力高出0.01至3MPa， 作为汽提部分中的底部产物或气体侧流，乙烯基醚（I）和作为顶部产物的含乙烯基醚（I）和醇（II）的共沸物; 和c）将来自第二蒸馏塔的含乙烯基醚（I）和乙醇（II）的共沸物再循环到第一蒸馏塔中。

    Stabilizers for Use in Nvp Synthesis
    10.
    发明申请
    Stabilizers for Use in Nvp Synthesis 失效
    稳定剂用于Nvp合成

    公开(公告)号：US20080312432A1

    公开(公告)日：2008-12-18

    申请号：US11659331

    申请日：2005-08-04

    申请人： Frank Hofer ,  Alexandra Brand ,  Arnd Bottcher ,  Katrin Baumann ,  Regina Vogelsang

    发明人： Frank Hofer ,  Alexandra Brand ,  Arnd Bottcher ,  Katrin Baumann ,  Regina Vogelsang

    IPC分类号： C07D223/10 ,  C07D207/267

    CPC分类号： C07D207/20 ,  C07C231/08

    摘要： A process for preparing N-alkenyl compounds by reacting the corresponding NH compounds with alkynes in the liquid phase in the presence of a catalyst, wherein the reaction is carried out in the presence of at least one stabilizer, and the use of stabilizers for increasing the selectivity in a process for preparing N-alkenyl compounds by reacting the corresponding NH compounds with alkynes in the liquid phase in the presence of a catalyst.

    摘要翻译： 一种在催化剂存在下使相应的NH化合物与液相中的炔反应制备N-烯基化合物的方法，其中该反应在至少一种稳定剂存在下进行，并且使用稳定剂来增加 在催化剂存在下，使相应的NH化合物与液相中的炔反应制备N-烯基化合物的方法中的选择性。