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    Method for separating trioxane from a trioxane/formaldehyde/water mixture by means of pressure change rectification
    6.
    发明授权
    Method for separating trioxane from a trioxane/formaldehyde/water mixture by means of pressure change rectification 失效
    通过压力变换精馏从三恶烷/甲醛/水混合物中分离三恶烷的方法

    公开(公告)号：US08372993B2

    公开(公告)日：2013-02-12

    申请号：US12523741

    申请日：2008-01-23

    申请人： Neven Lang ,  Joachim Thiel ,  Eckhard Stroefer ,  Julia Kirschbaum ,  Markus Siegert

    发明人： Neven Lang ,  Joachim Thiel ,  Eckhard Stroefer ,  Julia Kirschbaum ,  Markus Siegert

    IPC分类号： C07D309/00

    CPC分类号： C07D323/06 ,  B01D3/146 ,  B01D3/148

    摘要： A process for removing trioxane from a use stream I of formaldehyde, trioxane and water, by a) providing a use stream I which comprises formaldehyde as the main component and trioxane and water as the secondary components, b) feeding the use stream I, a recycle stream V and a recycle stream VII which comprises formaldehyde as the main component and water and trioxane as the secondary components into a first distillation stage and distilling to obtain a stream II a steam III and formaldehyde as the and a steam X c) distilling the stream III, in a second distillation stage the pressure in the second distillation stage being from 0.1 to 15 bar higher than the pressure in the first distillation stage, to obtain a stream IV and the recycle stream V as the secondary components, d) feeding the stream X and if appropriate a stream IX into a third distillation stage and distilling at a pressure of from 1 to 10 bar to obtain a stream VI which consists substantially of water and a recycle stream VII which comprises formaldehyde as the main component and water and trioxane as the secondary components.

    摘要翻译： a）从甲醛，三恶烷和水的使用流I中除去三恶烷的方法，通过a）提供包含甲醛作为主要成分的使用流I和作为次要组分的三恶烷和水，b）将使用流I， 循环流V和以甲醛为主要成分的再循环流VII和作为次要组分的水和三恶烷作为第二蒸馏步骤，并蒸馏以获得流II，蒸汽III和甲醛以及蒸汽X c）蒸馏 流III，在第二蒸馏阶段中，第二蒸馏阶段中的压力比第一蒸馏阶段中的压力高0.1至15巴，以获得流IV和再循环流V作为次要组分，d）将 流X并且如果合适的话，将流IX转化成第三蒸馏级并在1至10巴的压力下蒸馏以获得基本上由水和循环流 VII，其中甲醛为主要成分，水和三恶烷为次要成分。

    Method for the distillative separation of a mixture containing vinyl ether and alchol
    8.
    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。

    Method for the Separation by Distillation of Pure Trioxane
    9.
    发明申请
    Method for the Separation by Distillation of Pure Trioxane 审中-公开
    蒸馏纯三恶烷分离方法

    公开(公告)号：US20070293688A1

    公开(公告)日：2007-12-20

    申请号：US11660530

    申请日：2005-08-18

    申请人： Markus Siegert ,  Neven Lang ,  Eckhard Stroefer ,  Achim Stammer ,  Thorsten Friese

    发明人： Markus Siegert ,  Neven Lang ,  Eckhard Stroefer ,  Achim Stammer ,  Thorsten Friese

    IPC分类号： C07D323/06

    CPC分类号： B01D3/146 ,  B01D3/141 ,  C07D323/06

    摘要： The present invention relates to a process for distillatively removing pure trioxane from a feedstream (I) comprising trioxane in a proportion of at least 50% by weight, based on the total weight of the feedstream (I), and additionally formaldehyde and water, which comprises feeding the feedstream I and a further aqueous stream (II) which does not contain any components extraneous to the feedstream to a dividing wall column (TWK1) having a dividing wall TW which is arranged substantially perpendicularly and divides the column interior into a feed region (A1), a withdrawal reaction (B1), an upper combined column region (C1) and a lower combined column region (D1), and drawing off from the first dividing wall column (TWK1) a bottom stream (III) comprising pure trioxane and a sidestream (IV) at the withdrawal region (B1), comprising pure water.

    摘要翻译： 本发明涉及一种从基于原料流（I）的总重量至少50重量％的比例的另外的甲醛和水的含有三恶烷的原料流（I）蒸馏除去纯三恶烷的方法，以及另外的甲醛和水 包括将进料流I和不含任何与进料流无关的任何组分的另外的水流（II）进料到具有基本上垂直布置的分隔壁TW的分隔壁塔（TWK 1），并将塔内部分成进料 区域（A 1），取出反应（B 1），上部组合塔区域（C 1）和下部混合塔区域（D 1），从第一分隔壁塔（TWK 1） （III），其包含纯三恶烷和在取出区（B1））的侧流（IV），其包含纯水。

    Method for the distillative separation of a mixture containing vinyl ether and alchol
    10.
    发明申请
    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：US20060151310A1

    公开(公告)日：2006-07-13

    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： C07C41/00 ,  B01D3/00

    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）的乙烯基醚的混合物的方法<？in-line-formula description =“In-line formula”end =“lead”？> R 1 -O -CH-CH 2（I）<？在线公式描述=“直列式”末端=“尾”→和通式（II）的醇< line-formula description =“In-line Formulas”end =“lead”？> R 2 -O 2（II）<？in-line-formula description =“In-line Formulas”end =“ 其中R 1和R 2各自独立地是具有2至10个碳原子的饱和或不饱和的脂族或脂环族基团，其中醇 （II）的沸点比乙烯基醚（I）具有至少1℃以上测量或外推至0.1MPa abs的沸点，a）将混合物通入第一蒸馏塔并取出，作为 顶部产物，含乙烯基醚（I）和醇（II）的共沸物，和作为底部产物的富含醇（II）的物流; 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。