公开(公告)号：US20080207949A1

公开(公告)日：2008-08-28

申请号：US11720774

申请日：2005-12-03

申请人： Horst Grafmans ,  Steffen Maas ,  Alexander Weck ,  Heinz Rutter ,  Michael Schulz ,  Karl-Heinz Ross

发明人： Horst Grafmans ,  Steffen Maas ,  Alexander Weck ,  Heinz Rutter ,  Michael Schulz ,  Karl-Heinz Ross

IPC分类号： C07C233/05

CPC分类号： C07C231/02 ,  C07C233/05

摘要： A process for preparing N,N-dimethylacetamide (DMAC) by continuously reacting methyl acetate (MeOAc) with dimethylamine (DMA) in the presence of a basic catalyst, wherein MeOAc is used in the form of a methanolic solution which is obtained as a by-product in the preparation of polyTHF by transesterifying polyTHF diacetate with methanol.

摘要翻译： 在碱性催化剂存在下，通过使乙酸甲酯（MeOAc）与二甲胺（DMA）连续反应制备N，N-二甲基乙酰胺（DMAC）的方法，其中MeOAc以甲醇溶液的形式使用，其以 - 通过用甲醇将聚乙二醇二酯交酯化制备polyTHF的产物。

公开(公告)号：US07351311B2

公开(公告)日：2008-04-01

申请号：US10505774

申请日：2003-02-28

申请人： Gunther Windecker ,  Alexander Weck ,  Rolf-Hartmuth Fischer ,  Markus Rösch ,  Nils Bottke ,  Michael Hesse ,  Stephan Schlitter ,  Holger Borchert

发明人： Gunther Windecker ,  Alexander Weck ,  Rolf-Hartmuth Fischer ,  Markus Rösch ,  Nils Bottke ,  Michael Hesse ,  Stephan Schlitter ,  Holger Borchert

IPC分类号： B01D3/14 ,  C07D307/08

CPC分类号： B01D3/146 ,  C07D307/08 ,  Y10S203/20

摘要： Crude water-containing tetrahydrofuran is purified by passing the crude tetrahydrofuran through three distillation columns, withdrawing water from the bottom of the first column, recycling water-containing tetrahydrofuran from the top of the second column into the first column, passing a sidestream of the first column into the second column, recycling the bottom product of the third column into the first column, and withdrawing a distillate at the top of the first column. Additionally, a sidestream of the second column is passed into the third column and the purified tetrahydrofuran is recovered as the top product of the third column.

摘要翻译： 通过将粗四氢呋喃通过三个蒸馏塔，从第一塔的底部排出水，将含水四氢呋喃从第二塔的顶部再循环到第一塔中，将第一个塔 塔进入第二列，将第三塔的底部产物回收到第一塔中，并且抽出第一塔顶部的馏出物。 此外，将第二塔的侧流送入第三塔，回收纯化的四氢呋喃作为第三塔的顶部产物。

公开(公告)号：US20080058539A1

公开(公告)日：2008-03-06

申请号：US11575668

申请日：2005-09-21

申请人： Gunther Windecker ,  Alexander Weck ,  Markus Rosch ,  Michael Steiniger ,  Rolf Pinkos ,  Dany Hautte

发明人： Gunther Windecker ,  Alexander Weck ,  Markus Rosch ,  Michael Steiniger ,  Rolf Pinkos ,  Dany Hautte

IPC分类号： C07D307/02

CPC分类号： C07D307/08

摘要： The present invention provides a process for distillatively purifying tetrahydrofuran in the presence of a polar solvent.

摘要翻译： 本发明提供一种在极性溶剂存在下蒸馏精制四氢呋喃的方法。

公开(公告)号：US07271299B2

公开(公告)日：2007-09-18

申请号：US10516922

申请日：2003-06-11

申请人： Michael Hesse ,  Stephan Schlitter ,  Holger Borchert ,  Markus Schubert ,  Markus Rösch ,  Nils Bottke ,  Rolf-Hartmuth Fischer ,  Alexander Weck ,  Gunther Windecker ,  Gunnar Heydrich

发明人： Michael Hesse ,  Stephan Schlitter ,  Holger Borchert ,  Markus Schubert ,  Markus Rösch ,  Nils Bottke ,  Rolf-Hartmuth Fischer ,  Alexander Weck ,  Gunther Windecker ,  Gunnar Heydrich

IPC分类号： C07C31/18

CPC分类号： C07C29/149 ,  C07C31/207

摘要： Optionally alkyl-substituted 1,4-butanediol is prepared from C4-dicarboxylic acids and/or of derivatives thereof by: a) a gas stream of the C4-dicarboxylic acid or the derivative thereof in a first reactor in the gas phase to obtain a product which contains mainly optionally alkyl-substituted γ-butyro-lactone; b) removing succinic anhydride from the product of step a); c) catalytically hydrogenating the product of step b) in a second reactor in the gas phase to obtain optionally alkyl-substituted 1,4-butanediol; d) removing the desired product from intermediates, by-products and any unconverted reactants; and e) optionally recycling unconverted intermediates into one or both hydrogenation stages. The catalysts employed in each of the hydrogenation stages comprise ≦95% by weight of CuO, and ≦5% by weight of an oxidic support, and the second reactor has a higher pressure than the first reactor.

摘要翻译： 任选地，烷基取代的1,4-丁二醇由C 4-14二羧酸和/或其衍生物通过以下方法制备：a）引入C 4 - 二羧酸或其衍生物在气相中的第一反应器中，以获得主要含有烷基取代的γ-丁内酯的产物; b）从步骤a）的产物中除去琥珀酸酐; c）在气相中的第二反应器中催化氢化步骤b）的产物以获得任选的烷基取代的1,4-丁二醇; d）从中间体，副产物和任何未转化的反应物中除去所需的产物; 和e）任选地将未转化的中间体再循环到一个或两个氢化阶段。 在每个氢化阶段中使用的催化剂包含<95重量％的CuO和<= 5重量％的氧化载体，并且第二反应器具有比第一反应器更高的压力。

公开(公告)号：US20070088178A1

公开(公告)日：2007-04-19

申请号：US10571615

申请日：2004-09-04

申请人： Randolf Hugo ,  Sabine Jourdan ,  Kirsten Wenz ,  Thomas Preiss ,  Alexander Weck

发明人： Randolf Hugo ,  Sabine Jourdan ,  Kirsten Wenz ,  Thomas Preiss ,  Alexander Weck

IPC分类号： C07C209/48

CPC分类号： C07C209/48 ,  C07C211/27

摘要： A process for preparing xylylenediamine, comprising the steps of ammoxidizing xylene to phthalonitrile by contacting the vaporous product of this ammoxidation stage directly with a liquid organic solvent (quench), removing products having a boiling point higher than phthalonitrile (high boilers) from the resulting quench solution or suspension and hydrogenating the phthalonitrile, wherein the organic solvent used for the quench is N-methyl-2-pyrrolidone (NMP), after the removal of the high boilers and before the hydrogenation, there is a partial or complete removal of the NMP and/or of products having a boiling point lower than phthalonitrile (low boilers) and the phthalonitrile for the hydrogenation step is dissolved or suspended in an organic solvent or in liquid ammon

摘要翻译： 一种制备苯二甲胺的方法，包括以下步骤：通过使该氨氧化段的蒸气产物与液体有机溶剂（骤冷）接触，将二甲苯与邻苯二甲腈进行氨氧化，从所得的淬火中除去沸点高于邻苯二甲腈（高锅炉）的产物 溶液或悬浮液并氢化邻苯二甲腈，其中用于骤冷的有机溶剂是N-甲基-2-吡咯烷酮（NMP），在除去高锅炉之后，在氢化之前，部分或完全除去NMP 和/或沸点低于邻苯二甲腈（低锅炉）的产物和用于氢化步骤的邻苯二甲腈溶解或悬浮在有机溶剂或液氨中

公开(公告)号：US07169958B2

公开(公告)日：2007-01-30

申请号：US10516923

申请日：2003-06-10

申请人： Michael Hesse ,  Stephan Schlitter ,  Holger Borchert ,  Markus Schubert ,  Markus Rösch ,  Nils Bottke ,  Rolf-Hartmuth Fischer ,  Alexander Weck ,  Gunther Windecker ,  Gunnar Heydrich

发明人： Michael Hesse ,  Stephan Schlitter ,  Holger Borchert ,  Markus Schubert ,  Markus Rösch ,  Nils Bottke ,  Rolf-Hartmuth Fischer ,  Alexander Weck ,  Gunther Windecker ,  Gunnar Heydrich

IPC分类号： C07C29/132 ,  C07C29/149 ,  C07C29/136 ,  C07C29/147

CPC分类号： C07C29/149 ,  C07C31/207

摘要： The present invention relates to a process for preparing optionally alkyl-substituted 1,4-butanediol by two-stage catalytic hydrogenation in the gas phase of C4-dicarboxylic acids and/or of derivatives thereof having the following steps: a) introducing a gas stream of a C4-dicarboxylic acid or of a derivative thereof at from 200 to 300° C. and from 2 to 60 bar into a first reactor and catalytically hydrogenating it to a product which contains mainly optionally alkyl-substituted γ-butyrolactone; b) converting the product stream into the liquid phase; c) introducing the product stream obtained in this way into a second reactor at a temperature of from 100° C. to 240° C. and a pressure of from 20 to 250 bar and catalytically hydrogenating it in the liquid phase to optionally alkyl-substituted 1,4-butanediol; d) removing the desired product from by-products and any unconverted reactants; e) optionally recycling unconverted intermediates into one or both hydrogenation stages, said hydrogenation stages both using a catalyst which comprises ≦95% by weight, preferably from 5 to 95% by weight, in particular from 10 to 80% by weight, of CuO, and ≧5% by weight, preferably from 5 to 95% by weight, in particular from 20 to 90% by weight, of a support, said second reactor having a higher pressure than said first reactor, and the product mixture removed from said first reactor being introduced without further purification into said second reactor.

摘要翻译： 本发明涉及通过在具有下列物质的C 4 - 二羧酸和/或其衍生物的气相中通过两阶段催化氢化制备任选的烷基取代的1,4-丁二醇的方法 步骤：a）将200-300℃和2-60巴的C 4-14二羧酸或其衍生物的气流引入第一反应器，并将其催化氢化至 主要含烷基取代的γ-丁内酯的产品; b）将产物流转化成液相; c）将以这种方式获得的产物流在100℃至240℃的温度和20至250巴的压力下引入第二反应器，并将其在液相中催化氢化为任选的烷基取代的 1,4-丁二醇 d）从副产物和任何未转化的反应物中除去所需的产物; e）任选地将未转化的中间体再循环到一个或两个氢化阶段中，所述氢化步骤均使用包含<= 95重量％，优选5至95重量％，特别是10至80重量％的CuO ，和> = 5重量％，优选5至95重量％，特别是20至90重量％的载体，所述第二反应器具有比所述第一反应器更高的压力，并将产物混合物从 所述第一反应器不经进一步纯化地引入所述第二反应器。

公开(公告)号：US20050267318A1

公开(公告)日：2005-12-01

申请号：US10516923

申请日：2003-06-10

申请人： Michael Hesse ,  Stephan Schlitter ,  Holger Borchert ,  Markus Schubert ,  Markus Rosch ,  Nils Bottke ,  Rolf-Hartmuth Fischer ,  Alexander Weck ,  Gunther Windecker ,  Gunnar Heydrich

发明人： Michael Hesse ,  Stephan Schlitter ,  Holger Borchert ,  Markus Schubert ,  Markus Rosch ,  Nils Bottke ,  Rolf-Hartmuth Fischer ,  Alexander Weck ,  Gunther Windecker ,  Gunnar Heydrich

IPC分类号： B01J23/80 ,  C07B61/00 ,  C07C29/149 ,  C07C31/20 ,  C07C31/18

CPC分类号： C07C29/149 ,  C07C31/207

摘要： The present invention relates to a process for preparing optionally alkyl-substituted 1,4-butanediol by two-stage catalytic hydrogenation in the gas phase of C4-dicarboxylic acids and/or of derivatives thereof having the following steps: a) introducing a gas stream of a C4-dicarboxylic acid or of a derivative thereof at from 200 to 300° C. and from 2 to 60 bar into a first reactor and catalytically hydrogenating it to a product which contains mainly optionally alkyl-substituted 7-butyrolactone; b) converting the product stream into the liquid phase; c) introducing the product stream obtained in this way into a second reactor at a temperature of from 100° C. to 240° C. and a pressure of from 20 to 250 bar and catalytically hydrogenating it in the liquid phase to optionally alkyl-substituted 1,4-butanediol; d) removing the desired product from by-products and any unconverted reactants; e) optionally recycling unconverted intermediates into one or both hydrogenation stages, said hydrogenation stages both using a catalyst which comprises ≦95% by weight, preferably from 5 to 95% by weight, in particular from 10 to 80% by weight, of CuO, and ≧5% by weight, preferably from 5 to 95% by weight, in particular from 20 to 90% by weight, of a support, said second reactor having a higher pressure than said first reactor, and the product mixture removed from said first reactor being introduced without further purification into said second reactor.

摘要翻译： 本发明涉及通过在具有下列物质的C 4 - 二羧酸和/或其衍生物的气相中通过两阶段催化氢化制备任选的烷基取代的1,4-丁二醇的方法 步骤：a）将200-300℃和2-60巴的C 4-14二羧酸或其衍生物的气流引入第一反应器，并将其催化氢化至 主要含有烷基取代的7-丁内酯的产物; b）将产物流转化成液相; c）将以这种方式获得的产物流在100℃至240℃的温度和20至250巴的压力下引入第二反应器，并将其在液相中催化氢化为任选的烷基取代的 1,4-丁二醇 d）从副产物和任何未转化的反应物中除去所需的产物; e）任选地将未转化的中间体再循环到一个或两个氢化阶段中，所述氢化步骤均使用包含<= 95重量％，优选5至95重量％，特别是10至80重量％的CuO ，和> = 5重量％，优选5至95重量％，特别是20至90重量％的载体，所述第二反应器具有比所述第一反应器更高的压力，并将产物混合物从 所述第一反应器不经进一步纯化地引入所述第二反应器。

公开(公告)号：US06300467B1

公开(公告)日：2001-10-09

申请号：US09445993

申请日：2000-03-29

申请人： Heinz Auer ,  Jürgen Ciprian ,  Lothar Franz ,  Wolfgang Franzischka ,  Gabriele Iffland ,  Alexander Weck ,  Werner Weinle

发明人： Heinz Auer ,  Jürgen Ciprian ,  Lothar Franz ,  Wolfgang Franzischka ,  Gabriele Iffland ,  Alexander Weck ,  Werner Weinle

IPC分类号： C08F600

CPC分类号： C08G65/30 ,  C08G65/20 ,  C08G65/3312

摘要： The present invention relates to a process for preparing hydroxyl-containing polymers, in particular for preparing polytetrahydrofuran with terminal hydroxyl groups, from the corresponding acyloxy-containing polymers by transesterification with alcohols in the presence of an alkali metal- or alkaline earth metal-containing catalyst, which entails the appropriate acyloxy-containing polymer being introduced together with the alcohol and the catalyst into a first prereactor (I) and converted therein at least partly to the hydroxyl-containing polymer, and the reaction solution being fed into the upper zone (IIa) of a distillation column (II) into whose lower zone (IIb) alcohol in vapor phase is additionally fed. This involves a phase exchange at the coherent and the disperse phase at the transition from the prereactor to the distillation column. Preferably, in addition to the first prereactor, a further 3 prereactors are used which serve as holdup reactors.

摘要翻译： 本发明涉及一种制备含羟基聚合物的方法，特别是通过在含碱金属或碱土金属的催化剂存在下与醇进行酯交换从相应的含酰氧基的聚合物制备具有末端羟基的聚四氢呋喃 ，其使得适当的含酰氧基的聚合物与醇和催化剂一起引入第一预反应器（I）中并在其中至少部分地转化为含羟基聚合物，并将反应溶液进料到上部区域（IIa ）蒸馏塔（II），其中进一步加入气相中的低级（IIb）醇。 这涉及在从预反应器到蒸馏塔的过渡处的相干和分散相的相交换。 优选地，除了第一预反应器之外，还使用用作保持反应器的另外3个预反应器。

公开(公告)号：US08680353B2

公开(公告)日：2014-03-25

申请号：US13680910

申请日：2012-11-19

申请人： Sven Crone ,  Oliver Ryll ,  Till Blum ,  Alexander Weck ,  Rainer Papp ,  Roland Krokoszinski ,  Heinrich-Josef Blankertz

发明人： Sven Crone ,  Oliver Ryll ,  Till Blum ,  Alexander Weck ,  Rainer Papp ,  Roland Krokoszinski ,  Heinrich-Josef Blankertz

IPC分类号： C07C1/00 ,  C07C2/00 ,  C07C4/00 ,  C07C5/00 ,  C07C6/00

CPC分类号： C07C2/06 ,  C07C2/10 ,  C07C2523/755 ,  C07C11/02

摘要： A process for preparing oligomers by continuous oligomerization of butenes is described, wherein a) a feed stream 1) comprising 1-butene and 2-butene in a total concentration of from 10 to 70% by weight and from 10 to 60% by weight of isobutane is reacted until more than 60% by weight of the 1-butene comprised in the feed stream 1 but less than 50% by weight of the 2-butene comprised in feed stream 1 have been converted into oligomers. b) The oligomers obtained in a) are separated off and optionally passed to a further work-up and the remaining residual stream is fed to work-up by distillation. c) Isobutane is separated off by distillation from the residual stream, and d) the isobutane-depleted stream obtained after the work-up by distillation c) is reacted to form oligomers.

摘要翻译： 描述了通过丁烯的连续低聚制备低聚物的方法，其中a）包含总重量为10-70重量％和10-60重量％的1-丁烯和2-丁烯的进料流1） 异丁烷反应直到进料流1中包含的重量百分比大于60重量％的1-丁烯，但是小于50重量％的进料流1中包含的2-丁烯已经被转化为低聚物。 b）将a）中得到的低聚物分离出来并任选地进一步处理，剩余的剩余物流通过蒸馏进料后处理。 c）通过蒸馏从残余物流分离异丁烷，和d）通过蒸馏处理后获得的异丁烷贫化物流c）反应形成低聚物。

公开(公告)号：US08071389B2

公开(公告)日：2011-12-06

申请号：US11815125

申请日：2006-01-30

申请人： Alexander Weck ,  Markus Rösch ,  Gunther Windecker ,  Gunnar Heydrich ,  Rolf Pinkos ,  Olga Schubert ,  Klaus Harth

发明人： Alexander Weck ,  Markus Rösch ,  Gunther Windecker ,  Gunnar Heydrich ,  Rolf Pinkos ,  Olga Schubert ,  Klaus Harth

IPC分类号： G01N33/00

CPC分类号： B01J8/067 ,  B01J19/0006 ,  B01J2219/00006 ,  B01J2219/002 ,  B01J2219/00216 ,  B01J2219/0022 ,  B01J2219/00234 ,  B01J2219/00238 ,  B01J2219/30 ,  B01J2219/30483 ,  C07C51/36 ,  Y02P20/582 ,  Y10T436/22 ,  C07C55/10

摘要： The invention relates to a method of controlling a hydrogenation of a starting material in a hydrogenation reactor, in which the amount of hydrogen reacted in the hydrogenation is firstly determined, the ratio of the amount of hydrogen reacted to the amount of starting material fed in is then derived, this ratio is compared with a prescribed value and, finally, at least one process parameter is altered if the ratio of the amount of hydrogen reacted to the amount of starting material fed in deviates by a prescribed amount from the prescribed value.

摘要翻译： 本发明涉及控制氢化反应器中起始原料氢化的方法，其中首先确定在氢化反应的氢气的量，反应的氢的量与原料的供给量之比为 然后将该比率与规定值进行比较，最后，如果反应的氢的量与原料的供给量的比例与预定值相差规定量，则至少改变一个处理参数。