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    METHOD FOR SEPARATING TRIOXANE FROM A TRIOXANE/FORMALDEHYDE/WATER MIXTURE BY MEANS OF PRESSURE CHANGE RECTIFICATION
    21.
    发明申请
    METHOD FOR SEPARATING TRIOXANE FROM A TRIOXANE/FORMALDEHYDE/WATER MIXTURE BY MEANS OF PRESSURE CHANGE RECTIFICATION 失效
    通过压力变化方法从三氧化硅/甲醛/水混合物中分离三氧化二锑的方法

    公开(公告)号：US20100121081A1

    公开(公告)日：2010-05-13

    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： C07D323/06

    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 at a pressure of from 0.1 to 2.5 bar to obtain a stream II which comprises formaldehyde as the main component and water as the secondary component, and a stream III which comprises trioxane as the main component and water and formaldehyde as the secondary components, and a stream X which comprises water, trioxane and formaldehyde, c) distilling the stream III, optionally after removing low boilers from the stream III in a low boiler removal stage, in a second distillation stage at a pressure of from 0.2 to 17.5 bar, 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 which consists substantially of trioxane and the recycle stream V which comprises trioxane as the main component and water and formaldehyde as the secondary components, d) feeding the stream X and if appropriate a stream IX which comprises water as the main component 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，并在0.1至2.5巴的压力下蒸馏以获得包含甲醛作为主要的流II 组分和水作为次要组分，以及包含三恶烷作为主要组分的流III和作为次要组分的水和甲醛，以及包含水，三恶烷和甲醛的流X，c）蒸馏流III，任选地在除去 在低锅炉去除阶段来自流III的低锅炉，在0.2至17.5巴的压力的第二蒸馏阶段中，第二蒸馏中的压力 酸化阶段比第一蒸馏阶段的压力高0.1至15巴，以获得基本上由三恶烷组成的料流IV和包含三恶烷作为主要成分的再循环流V，水和甲醛作为次要组分，d ），并且如果合适的话，将包含水作为主要成分的物流IX进料到第三蒸馏阶段并在1至10巴的压力下蒸馏以获得基本上由水和循环流VII组成的物流VI， 以甲醛为主要成分，水和三恶烷为次要成分。

    Process for preparing polyoxymethylene homopolymers or copolymers by homopolymerization or copolymerization of trioxane, starting from methanol
    23.
    发明授权
    Process for preparing polyoxymethylene homopolymers or copolymers by homopolymerization or copolymerization of trioxane, starting from methanol 失效
    通过三恶烷的均聚或共聚制备聚甲醛均聚物或共聚物的方法，从甲醇开始

    公开(公告)号：US08378144B2

    公开(公告)日：2013-02-19

    申请号：US12747742

    申请日：2008-12-11

    申请人： Markus Siegert ,  Tobias Kortekamp ,  Eckhard Stroefer ,  Christoph Sigwart ,  Neven Lang

    发明人： Markus Siegert ,  Tobias Kortekamp ,  Eckhard Stroefer ,  Christoph Sigwart ,  Neven Lang

    IPC分类号： C07C213/00

    CPC分类号： C07D323/06 ,  C08G2/10

    摘要： A process for preparing polyoxymethylene homopolymers or copolymers (7) by homopolymerization or copolymerization of trioxane, starting from methanol (1), in which methanol (1) is oxidized in a first reactor in a first production plant (A) to give an aqueous formaldehyde-comprising stream (2) which is fed to a second production plant (B) in which pure trioxane (6) is obtained and removal of low boilers (5) by distillation is carried out and the pure trioxane (6) is fed to a third production plant (C) in which it is homopolymerized or copolymerized to form polyoxymethylene homopolymers or copolymers (7), wherein the low boiler stream (5) from the low boiler removal column (K 2) is recycled to the feed stream into the first reactor in the first production plant (A), is proposed.

    摘要翻译： 从甲醇（1）开始，通过三恶烷的均聚或共聚制备聚甲醛均聚物或共聚物（7）的方法，其中甲醇（1）在第一生产设备（A）中的第一反应器中被氧化，得到甲醛水溶液 （2），其被供给到其中获得纯三恶烷（6）并通过蒸馏除去低锅炉（5）的第二生产设备（B），并将纯三恶烷（6）进料至 第三生产厂（C），其中其被均聚或共聚以形成聚甲醛均聚物或共聚物（7），其中来自低锅炉除去塔（K 2）的低沸点物流（5）被再循环到进料流中， 提出了第一个生产厂（A）中的反应堆。

    METHOD FOR SEPARATING TIOXANE FROM A TRIOXANE/FORMALDEHYDE/WATER MIXTURE BY MEANS OF PRESSURE CHANGE RECTIFICATION
    24.
    发明申请
    METHOD FOR SEPARATING TIOXANE FROM A TRIOXANE/FORMALDEHYDE/WATER MIXTURE BY MEANS OF PRESSURE CHANGE RECTIFICATION 失效
    通过压力变化方法从三氧化E /甲醛/水混合物中分离三氧化二锑的方法

    公开(公告)号：US20100270140A1

    公开(公告)日：2010-10-28

    申请号：US12682294

    申请日：2008-09-22

    申请人： Markus Siegert ,  Neven Lang ,  Laszlo Szarvas ,  Christoph Sigwart ,  Franz Niklaus Windlin ,  Eckhard Stroefer

    发明人： Markus Siegert ,  Neven Lang ,  Laszlo Szarvas ,  Christoph Sigwart ,  Franz Niklaus Windlin ,  Eckhard Stroefer

    IPC分类号： B01D3/10 ,  B01D3/36

    CPC分类号： C07D323/06

    摘要： A process for separating trioxane from a feed stream I comprising formaldehyde, trioxane and water, in which a) a feed stream I comprising formaldehyde as main component and trioxane and water as secondary components is provided, b) the feed stream I, a recycle stream V and a recycle stream VII comprising formaldehyde as main component and water and trioxane as secondary components are fed into a first distillation stage and distilled at a pressure of from 0.1 to 2.5 bar to give a stream II comprising formaldehyde as main component and water as secondary component and a stream III comprising trioxane as main component and water and formaldehyde as secondary components and a stream X comprising water, trioxane and formaldehyde, c) the stream III is, if appropriate after removal of low boilers from the stream III in a low boiler removal stage, distilled in a second distillation stage at a pressure of from 0.2 to 17.5 bar, with the pressure in the second distillation stage being from 0.1 to 15 bar higher than the pressure in the first distillation stage, to give a stream IV consisting essentially of trioxane and the recycle stream V comprising trioxane as main component and water and formaldehyde as secondary components, c1) the stream IV is purified in at least one further trioxane distillation stage at a pressure at the top of from 0.5 to 2 bar to give purified trioxane as side offtake stream XII in the enrichment section of the column, d) the stream X and, if appropriate, a stream IX comprising water as main component are fed into a third distillation stage and distilled at a pressure of from 1 to 10 bar to give a stream VI consisting essentially of water and a recycle stream VII comprising formaldehyde as main component and water and trioxane as secondary components, is described.

    摘要翻译： 提供了从包含甲醛，三恶烷和水的进料流I中分离三恶烷的方法，其中a）以甲醛为主要成分的进料流I和作为次要组分的三恶烷和水，b）进料流I，再循环流 V和包含甲醛作为主要成分的再循环料流VII和作为次要成分的水和三恶烷进料到第一蒸馏阶段并在0.1至2.5巴的压力下蒸馏，得到包含甲醛作为主要成分的流II和作为次要的水 组分和包含三恶烷作为主要组分的流III和作为次要组分的水和甲醛，以及包含水，三恶烷和甲醛的流X，如果在低锅炉中从流III中除去低锅炉之后，则流III 去除阶段，在第二蒸馏阶段在0.2至17.5巴的压力下蒸馏，第二蒸馏阶段的压力为0.1 得到基本上由三恶烷组成的物流IV和包含三恶烷作为主要成分的再循环流V，以及作为次要组分的水和甲醛，c1）流IV至少纯化 在0.5至2巴的顶部的压力下进一步进一步三恶烷蒸馏阶段，以在柱的富集部分中提供作为侧馏出物流XII的纯化的三恶烷，d）流X和如果合适的话，将包含水的流IX 主要组分进料到第三蒸馏阶段并在1至10巴的压力下蒸馏，得到基本上由水组成的料流VI和包含甲醛作为主要成分的再循环料流VII和作为次要成分的水和三恶烷。

    Method for the distillative separation of a mixture containing vinyl ether and alchol
    27.
    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 distillative separation of a mixture containing vinyl ether and alchol
    28.
    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。

    Two-stage process for cost-effective deposition of homogeneous catalysts in MDA synthesis
    29.
    发明授权
    Two-stage process for cost-effective deposition of homogeneous catalysts in MDA synthesis 有权
    在MDA合成中成本有效地沉积均相催化剂的两阶段方法

    公开(公告)号：US08759585B2

    公开(公告)日：2014-06-24

    申请号：US13510680

    申请日：2010-12-13

    申请人： Markus Siegert ,  Torsten Mattke ,  Tilmann Steinmetz ,  Hans-Juergen Pallasch ,  Filip Nevejans

    发明人： Markus Siegert ,  Torsten Mattke ,  Tilmann Steinmetz ,  Hans-Juergen Pallasch ,  Filip Nevejans

    IPC分类号： C07C211/00

    CPC分类号： C07C209/78 ,  C07C211/50

    摘要： The invention provides a process for preparing diphenylmethanediamine, comprising the steps of: a) reacting aniline with formaldehyde in the presence of an acid, b) neutralizing the predominant part of the acid with ammonia and/or aqueous ammonia solution, c) separating the reaction mixture from step b) into an aqueous phase and an organic phase, d) neutralizing the other part of the acid, present in the organic phase, with aqueous alkali metal hydroxide solution, e) separating the reaction mixture from step d) into an aqueous phase and an organic phase, f) treating the aqueous phase obtained in step c) or optionally the combined aqueous phases from steps c) and e) with at least one oxide or hydroxide of an alkaline earth metal, g) removing the ammonia obtained in step f).

    摘要翻译： 本发明提供一种制备二苯基甲烷二胺的方法，包括以下步骤：a）在酸存在下使苯胺与甲醛反应，b）用氨和/或氨水溶液中和酸的主要部分，c）分离反应 步骤b）的混合物进入水相和有机相，d）用碱金属氢氧化物水溶液中和存在于有机相中的酸的另一部分，e）将步骤d）中的反应混合物分离成水 相和有机相，f）用至少一种碱土金属的氧化物或氢氧化物处理步骤c）中获得的水相或步骤c）和e）的合并水相，g）除去在 步骤f）。

    Process for preparing diphenylmethanediamine
    30.
    发明授权
    Process for preparing diphenylmethanediamine 有权
    制备二苯甲烷二胺的方法

    公开(公告)号：US08329951B2

    公开(公告)日：2012-12-11

    申请号：US12521873

    申请日：2008-01-02

    申请人： Veronika Wloka ,  Torsten Mattke ,  Daniel Breuninger ,  Markus Siegert

    发明人： Veronika Wloka ,  Torsten Mattke ,  Daniel Breuninger ,  Markus Siegert

    IPC分类号： C09B11/02

    CPC分类号： C07C209/78 ,  C07C209/84 ,  C07C211/50

    摘要： The invention provides a process for preparing diphenylmethanediamine, comprising the steps of a) reacting aniline with formaldehyde in the presence of an acid, b) neutralizing the acid with ammonia, c) separating the reaction mixture from step b) into an aqueous phase and an organic phase, d) treating the aqueous phase obtained in step c) with an oxide or hydroxide of an alkaline earth metal, e) separating off the ammonia obtained in step d).

    摘要翻译： 本发明提供一种制备二苯基甲烷二胺的方法，包括以下步骤：a）在酸存在下使苯胺与甲醛反应，b）用氨中和酸，c）将反应混合物从步骤b）分离成水相， 有机相，d）用碱土金属的氧化物或氢氧化物处理步骤c）中获得的水相，e）分离步骤d）中得到的氨。